African-American Inventors Database

 

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African American Inventors or here - Black HistoryAfrican American Inventor, U.S. Patent Number, Date, Invention(s). Links lead to: information on the individual African American, Links lead to: actual ...

Inventor Invention

Date

Patent Number

Notes
Abrams, William B. Hame attachment

Apr. 14,1891

450,550

Part for a draft horses' collar
Adams, Christopher P. Method for performing amplification of nucleic acid with two primers bound to a single solid support

June 24, 1997

5,641,658

 
Adams, James S. Propelling means for aeroplanes

Oct. 19, 1920

1,356,329

 
Albert, Albert P. Cotton picking apparatus

Apr. 23, 1907

851,475

 
Alcorn, George E. Method of fabricating an imaging x-ray spectrometer

Oct. 21, 1986

4,618,380

 
Alcorn, George E. Gaas Schottky barrier photo-responsive device and method of fabrication

Sept. 24, 1985

4,543,442

 
Alcorn, George E. Imaging x-ray spectrometer

Sept. 18, 1984

4,472,728

 
Alcorn, George E. Dense dry etched multi-level metallurgy with non-overlapped vias

Sept. 15, 1981

4,289,834

 
Alcorn, George E. Method for forming dense dry etched multi-level metallurgy with non-overlapped vias

Oct. 23, 1979

4,172,004

 
Alcorn, George E. Hardened photoresist master image mask process

May 6, 1980

4,201,800

 
Alexander, Nathaniel Folding chair

July 4, 1911

997,108

 
Alexander, Ralph W. Corn planter check rower

Apr. 18, 1882

256,610

 
Alexander, Winser Edward System for enhancing fine detail in thermal photographs

Nov. 17, 1970

3,541,333

 
Allen, Charles William Self-leveling table

Nov. 1, 1898

613,436

 
Allen, Floyd Low cost telemeter for monitoring a battery and DC voltage converter power supply

Nov. 11, 1975

3,919,642

 
Allen, James B. Clothes line support

Dec. 10, 1895

551,105

 
Allen, James Metthew Remote control apparatus

June 29, 1937

2,085,624

 
Allen, John H. Pattern generator for simulating image generation

Dec. 1, 1981

4,303,938

 
Allen, John S. Package-tie

Apr. 14, 1914

1,093,096

 
Allen, Robert T. Vertical coin counting tube

Jan. 1, 1963

3,071,243

 
Allen, Tanya R. Undergarment with a pocket for releasably securing an absorbent pad

July 5, 1994

5,325,543

 
Ammons, Virgie M. Fireplace damper actuating tool

Sept 30, 1975

3,908,633

 
Ancker Johnson, Betsy Signal generators

Nov. 22, 1966

3,287,659

 
Ashbourne, Alexander P. Refining coconut oil

July 27, 1880

230,518

 
Ashbourne, Alexander P. Biscuit cutters

Nov. 30, 1875

170,460

 
Ashbourne, Alexander P. Process of treating coconut

Aug. 21, 1877

194,287

 
Ashbourne, Alexander P. Process for preparing coconut for domestic use

June 1, 1875

163,962

 
Asom, Moses T. Semiconductor devices based on optical transitions between quasibound energy levels

Jan. 31, 1995

5,386,126

 
Bailey, Leonard C. Folding bed

July 18, 1899

629,286

 
Bailey, Leonard C. Combined truss and bandage

Sept. 25, 1883

285,545

 
Bailiff, Charles Orren Shampoo head rest

Oct. 11, 1898

612,008

 
Bailis, William Ladder scaffold-supports

Aug. 5, 1879

218,154

 
Baker, Bertram F. Automatic cashier

Apr. 27, 1926

1,582,659

 
Baker, David Signal apparatus high water indicator for bridges

Sept. 21,1915

1,154,162

 
Baker, David Interliners to prevent tire punctures

Mar. 8, 1927

1,620,054

 
Baker, David Railway signal apparatus

Feb. 25, 1913

1,054,267

 
Ballow, William J. Combined hat-rack and table

Mar. 29, 1898

601,422

 
Bankhead, Charles A. Assembled composition printing process

July 16, 1963

3,097,594

 
Banks, Charles M. Release valve

Jan. 10, 1933

1,893,757

 
Banks, Charles M. Jack

Sept. 2, 1930

1,774,693

 
Banks, Charles M. Hydraulic jack

May 13, 1930

1,758,640

 
Barnes, George A. E. Design for sign

Aug. 9, 1898

D 29,193

 
Barnes, Ned E. Tie plate and joint brace

Jan. 3, 1928

1,655,305

 
Barnes, Ned E. Tie plate for railway

Apr. 25, 1916

1,180,467

 
Barnes, Ned E. Sand band for wagon

June 13, 1905

792,109

 
Barnes, Ned E. Hot box cooler and oiler

Sept. 29, 1908

899,939

 
Barnes, Ned E. Rail and tie brace

Mar. 13, 1906

815,059

Improvement on same patent in 1923.
Barnes, Ned E. Indicator or bulletin

Sept. 6, 1910

969,592

 
Barnes, Ned E. Rail brace

Feb. 27, 1923

1,446,957

 
Barnes, Ned E. Pole, post and tree protector

June 12, 1928

1,673,729

 
Barnes, Ned E. and Edmond, Berger Automatic film mover

Jan. 12, 1915

1,124,879

 
Barnes, Sharon J. Process and apparatus for contactless measurement of sample temperature

Jan. 29, 1991

4,988,211

 
Baron, Neville A. Apparatus and process for recurving the cornea of an eye

July 24, 1984

4,461,294

 
Barry, William Mail-canceling machine

June 22, 1897

585,074

 
Barry, William Stacking device

June 22, 1897

585,017

 
Barry, William Stacking device

June 22, 1897

584,842

 
Barry, William Postmarking and canceling machine

June 22, 1897

585,075

 
Barry, William Postal machine

June 22, 1897

585,076

 
Bath, Patricia E. Method and apparatus for ablating and removing cataract lenses

Dec. 1, 1998

5,843,071

 
Bath, Patricia E. Apparatus for ablating and removing cataract lenses

May 17, 1988

4,744,360

 
Bath, Patricia E. Laser apparatus for surgery of cataractous lenses

July 6, 1999

5,919,186

 
Battle, James Variable resistance resistor assembly

Sept. 12, 1972

3,691,503

 
Bauer, James A. Coin changer mechanism

Jan. 20, 1970

3,490,571

 
Bayless, Robert Gordon Solid microglobules containing dispersed materials

Nov. 25, 1975

3,922,373

 
Bayless, Robert Gordon Pressure-sensitive record sheet and coating composition

April 27, 1971

3,576,660

 
Bayless, Robert Gordon Method of producing microcapsules and resulting product

Aug. 15, 1978

4,107,071

 
Bayless, Robert Gordon Process of feeding larval marine animals

Feb. 14, 1978

4,073,946

 
Bayless, Robert Gordon Water solubilization of vanadyl-hardened poly(vinyl alcohol) films useful as capsule wall material

Dec. 21, 1971

3,629,140

 
Bayless, Robert Gordon and Emrick, Donald Day Encapsulation process and its product

April 6, 1971

3,574,133

 
Bayless, Robert Gordon and Emrick, Donald Day Encapsulation process and its product

Feb. 23, 1971

3,565,818

 
Beard, Andrew Jackson Rotary engine

July 5, 1892

478,271

 
Beard, Andrew Jackson Car-coupling

Nov. 23, 1897

594,059

"Jenny Coupler" which reportedly saved the lives of many trainmen. Beard was a former slave.
Becket, George E. Letter box

Oct. 4, 1892

483,525

 
Beckley, Charles Randolph Folding chair

Dec. 24, 1974

3,856,345

 
Becoat, Billie J. Dual wheel driven bicycle

May 26, 1992

5,116,070

 
Becoat, Billie J. Kit for converting a bicycle to a dual wheel driven cycle

Jan. 23, 1990

4,895,385

 
Becoat, Billie J. Kit for converting a bicycle to a dual wheel driven cycle

Apr. 2, 1991

5,004,258

 
Becoat, Billie J. Dual wheel driven bicycle

Feb. 9, 1993

5,184,838

 
Belcher, Paul Eugene and Hobel, Daniel Remote AC power control with control pulses at the zero crossing of the AC wave

May 4, 1982

4,328,482

 
Bell, Landrow Dough kneaders

Dec. 10, 1872

133,823

 
Bell, Landrow Locomotive smoke stack

May 23, 1871

115,153

 
Benjamin, Alfred Stainless steel scouring pads

June 19, 1962

3,039,125

 
Benjamin, Lyde W. Broom moistener and bridle

May 16, 1893

497,747

 
Benjamin, Miriam E. Gong and signal chairs for hotels

July 17, 1888

386,289

Adapted for use by the U.S. House of Representatives
Benton, James W. Lever-derrick

Oct. 2, 1900

658,939

Benton walked from Kentucky to Washington to get his patent
Berman, Bertha Fitted bed sheet

Oct. 6, 1959

2,907,055

 
Binga, M. William Street sprinkling apparatus

July 22, 1879

217,843

 
Bishop, Alfred A. Nuclear reactor with self-orificing radial blanket

Mar. 7, 1978

4,077,835

 
Blackburn, Albert B. Spring seat for chairs

Apr. 3, 1888

380,420

 
Blackburn, Albert B. Cash carrier

Oct. 23, 1888

391,577

 
Blackburn, Albert B. Railway signal

Jan. 10, 1888

376,362

 
Blackburn, Charles M. Electronic counting apparatus

Nov. 9, 1971

3,618,819

 
Blair, Henry Cotton planter

Aug. 31, 1836

 

Patents unnumbered during this period
Blair, Henry Seed planter

Oct. 14, 1834

8447X

 
Blanton, John W. Hydromechanical rate damped servo system

Aug. 27, 1963

3,101,650

 
Blue, Lockrum Hand corn shelling device

May 20, 1884

298,937

 
Bluford, Guion S. Artillery ammunition training round

Feb. 13, 1951

2,541,025

 
Bondu, David M. Golf tee

Sept. 23, 1975

3,907,289

 
Booker, L. F. Rubber scraping knife

Mar. 28, 1899

D 30,404

 
Booker, Peachy Flying landing platform

Oct. 10, 1961

3,003,717

 
Boone, Sarah Ironing board

Apr. 26, 1892

473,653

 
Bowman, Henry A. Method of making flags

Feb. 23, 1892

469,395

 
Boyd, Robert N. Dental filling composition of a coefficient of thermal expansion approximating that of natural tooth enamel

Mar. 31, 1970

3,503,128

 
Boykin, Otis F. Self supporting electrical resistor composed of glass, refractory materials and noble metal oxide

May 12, 1981

4,267,074

 
Boykin, Otis F. Electrical resistance element and method of making the same

Sept. 6, 1966

3,271,193

 
Boykin, Otis F. Electrical capacitor and method of making same

June 22, 1965

3,191,108

Boykin received many patents for electronic devices
Boykin, Otis F. Electrical resistor and method of making same

Dec. 31, 1985

4,561,996

 
Boykin, Otis F. Method of making a thin film capacitor

Oct. 24, 1967

3,348,971

 
Boykin, Otis F. Electrical resistor and method of making the same

Nov. 29, 1983

4,418,009

 
Boykin, Otis F. Electrical resistor

Feb. 21, 1961

2,972,726

 
Boykin, Otis F. Electrical resistance element

Feb. 14, 1967

3,304,199

 
Boykin, Otis F. Electrical resistance element and method of making the same

July 4, 1967

3,329,526

 
Boykin, Otis F. Thin film capacitor

July 23, 1968

3,394,290

 
Boykin, Otis F. Wire type precision resistor

June 16, 1959

2,891,227

 
Bradberry, Henrietta Torpedo discharge means

Dec. 11, 1945

2,390,688

Bradberry invented the underwater torpedo-cannon during WWII.
Bradberry, Henrietta Bed rack

May 25, 1943

2,320,027

 
Briscoe, James R. Building blocks with sides converging upwardly

April 9, 1968

3,376,682

 
Brittain, Thomas H. Level

Nov. 23, 1909

940,671

 
Brooks, Charles B. Street-sweeper

Apr. 21, 1896

558,719

 
Brooks, Charles B. Punch

Oct. 31, 1893

507,672

 
Brooks, Charles B. Dust-proof bag for street-sweepers

May 12, 1896

560,154

 
Brooks, Charles B. Street sweeper

Mar. 17, 1896

556,711

 
Brooks, James M. Envelope moistener

Apr. 7, 1914

1,092,688

 
Brooks, John S. Internal combustion engine spark timing control including peak combustion sensor

Nov. 13, 1984

4,481,925

 
Brooks, Phil Disposable syringe

Apr. 9, 1974

3,802,434

 
Brooks, Robert Roosevelt Line blanking apparatus for color bar generating equipment

Aug. 1, 1967

3,334,178

 
Brooks, Robert Roosevelt Vertical and horizontal aperture equalization

Dec. 8, 1970

3,546,372

 
Brooks, Robert Roosevelt Preset sensitivity and amplication control system

June 30, 1970

3,518,371

 
Brown, Henry Receptacle for storing and preserving papers

Nov. 2, 1886

352,036

 
Brown, Firmin Charles Self-feeding attachment for furnaces

July 2, 1929

1,719,258

 
Brown, Henry T. Reactivating hydroforming catalysts

Oct. 22, 1968

3,407,135

 
Brown, Henry T. Combined isomerization & crack

Sept. 19, 1961

3,000,995

 
Brown, Lincoln F. Bridle bit

Oct. 25, 1892

484,994

 
Brown, Marie Van Brittan Home security system utilizing televison surveillance

Dec. 2, 1969

3,482,037

 
Brown, Oscar E. Horseshoe

Aug. 23, 1892

481,271

 
Brown, Paul L. Spinable stringless top

Aug. 11, 1970

3,523,386

 
Browne, Hugh M. Sewer or other trap

Apr. 29, 1890

426,429

 
Browne, Hugh M. Damper regulator

Apr. 28, 1908

886,183

 
Bryant, Curtis L. Protective device for automobiles

Apr. 30, 1935

1,999,171

 
Bundy, Robert F. Signal generator

Jan. 26, 1960

2,922,924

 
Burgin, Paul D. Head lamp rim remover

Jan. 13, 1931

1,788,507

 
Burkins, Eugene Breech-loading cannon

May 15, 1900

649,433

 
Burnham, Gerald Owens Direction coded digital stroke generator providing a plurality of symbols

Feb. 10, 1976

3,938,130

 
Burr, John Albert Lawn mower

May 9, 1899

624,749

 
Burr, William F. Switching device for railways

Oct. 31, 1899

636,197

 
Burridge, Lee S. and Marshman, Newman R. Type-writing machine

Apr. 7, 1885

315,366

 
Burton, Gus Emergency landing runway

June 13, 1944

2,351,002

 
Burwell, Wilson Boot or shoe

Nov. 28, 1899

638,043

 
Butler, Francis Edward Drill mine

Nov. 17, 1959

2,912,929

 
Butler, Francis Edward Audible underwater signal

Aug. 20, 1957

2,803,807

 
Butler, Francis Edward Watertight electrical connector

July 4, 1961

2,991,441

 
Butler, Richard A. Train alarm

June 15, 1897

584,540

 
Butts, John W. Luggage carrier

Oct. 10, 1899

634,611

 
Byrd, Turner, Jr. Improvement in holders for reins for harness

Feb. 6, 1872

123,328

 
Byrd, Turner, Jr. Improvement in neck yokes for wagons

Apr. 30, 1872

126,181

 
Byrd, Turner, Jr. Improvement in car couplings

Dec. 1, 1874

157,370

 
Byrd, Turner, Jr. Apparatus for detaching horses from carriages

Mar. 19, 1872

124,790

 
Cadet, Gardy Acoustic analysis of gas mixtures

Feb. 28, 1995

5,392,635

 
Cadet, Gardy Plasma etch end point detection process

Mar. 2, 1999

5,877,407

 
Cadet, Gardy Acoustic analysis of gas mixtures

Apr. 29, 1997

5,625,140

 
Cadet, Gardy Electrochemical generation of silane

Apr. 23, 1996

5,510,007

 
Cadet, Gardy Acoustic analysis of gas mixtures

Mar. 26, 1996

5,501,098

 
Cadet, Gardy Process and apparatus for generating precursor gases used in the manufacture of semiconductor devices

Dec. 12, 1995

5,474,659

 
Cadet, Gardy Process for the manufacture of devices

Jun. 27, 1995

5,427,659

 
Cadet, Gardy Acoustic analysis of gas mixtures

Sept. 7, 1999

5,948,967

 
Caliver, Ambrose Work cabinet

Jan. 5, 1926

1,568,498

 
Campbell, Peter R. Improvement in screw presses

Apr. 1, 1879

213,871

 
Campbell, Robert Leon Valve gear for steam engines

May 19, 1903

728,364

 
Campbell, William S. Self-setting animal trap

Aug. 30, 1881

246,369

 
Cargill, Benjamin F. Invalid cot

July 25, 1899

629,658

 
Carrington, Thomas A. Ranges

July 25, 1876

180,323

 
Carruthers, George R. Image converter for detecting electromagnetic radiation especially in short wave lengths

Nov. 11, 1969

3,478,216

 
Carswell, Phillip A. Secure cryptographic logic arrangement

Nov. 15, 1994

5,365,591

 
Carter, John. L. & Weiner, Maurice & Youmans, Robert J. Distributed pulse forming network for magnetic modulator

Sept. 16, 1986

4,612,455

 
Carter, William C. Umbrella stand

Aug. 4, 1885

323,397

 
Carver, George Washington Process of producing paints and stains

June 14, 1927

1,632,365

Carver refused to patent most of the hundreds of products he developed.
Carver, George Washington Paint and stain and process of producing the same

June 9, 1925

1,541,478

 
Carver, George Washington Cosmetic and process of producing the same

Jan. 6, 1925

1,522,176

Carver presented the first peanut-derived cosmetics.
Cassell, Oscar Robert Bedstead extension

Apr. 18, 1911

990,107

 
Cassell, Oscar Robert Bedstead extension

July 28, 1914

1,105,487

 
Cassell, Oscar Robert Flying machine

Feb. 14, 1922

1,406,344

 
Cassell, Oscar Robert Flying machine

Apr. 30, 1912

1,024,766

 
Cassell, Oscar Robert Angle indicator

Sept. 10, 1912

1,038,291

 
Certain, Jerry M. Parcel carrier for bicycles

Dec. 26, 1899

639,708

 
Chapman, Coit Timothy Cotton planter and fertilizer distributer

Mar. 11, 1890

423,311

 
Chapman, Gilbert B. Integrated utility/camper shell for a pick-up truck

June 6, 1995

5,421,633

 
Chappelle, Emmett W. Method of detecting and counting bacteria

July 27, 1976

3,971,703

 
Chappelle, Emmett W. Rapid, quantitative determination of bacteria in water

May 24, 1983

4,385,113

 
Chappelle, Emmett W. Light detection instrument

July 14, 1970

3,520,660

Chappelle had numerous patents in photobiology
Cheetham, Margaret Toy

Apr. 16, 1935

1,998,270

 
Cherry, Matthew A. Street car fender

Jan. 1, 1895

531,908

 
Cherry, Matthew A. Velocipede

May 8, 1888

382,351

 
Chriss, Henry T. Footwear additive made from recycled materials

Sept. 13, 1994

5,346,934

 
Christian, John B. Perfluoroalkylether substituted phenyl phosphines

June 12, 1984

4,454,349

 
Christian, John B. Grease composition for use at high temperatures and high speeds

June 30, 1970

3,518,189

Christian has many patents in chemical engineering
Christian, John B. Fluorine-containing benzimidazoles

May 12, 1981

4,267,348

 
Christian, John B. Grease compositions of fluorocarbon polyethers thickened with polyfluorophenylene polymers

Oct. 27, 1970

3,536,624

 
Christmas, Charles T. Hand-power attachment for sewing machines

Apr. 13, 1880

226,492

 
Christmas, Charles T. Baling press

May 25, 1880

228,036

 
Christmas, Charles T. Bale band tightener

Aug. 17, 1880

231,273

 
Church, Titus S. Carpet beating machine

July 22. 1884

302,237

 
Clare, Obadian B. Trestle

Oct. 9, 1888

390,753

 
Clark, Erastus J. Nut lock

Dec. 9, 1884

308,876

 
Clark, Samuel A. Protective metal shield for plastic fuze radomes

July 20, 1976

3,971,024

 
Coates, Robert Overboot for horses

Apr. 19, 1892

473,295

 
Cobb, James W. Method and system for attaching a pocket to a portion of a garment

June 20, 1972

3,670,675

 
Cobbs, William N. Locomotive headlight

Nov. 4, 1930

1,780,865

 
Coles, James J. Cap and collar case

Mar. 23, 1926

1,577,632

 
Coles, Leander M. Mortician's table

Mar. 26, 1974

3,799,534

 
Collins, Cap B. Portable electric light

Jan. 18, 1938

2,105,719

 
Collins, Phillip A. Bubble machine

Oct. 4, 1988

4,775,348

 
Cook, George Automatic fishing device

May 30, 1899

625,829

 
Coolidge, John Sidney Harness attachment

Nov. 13, 1888

392,908

 
Cooper, Albert R. Shoemaker's jack

Aug. 22, 1899

631,519

 
Cooper, James Elevator safety device

Sept. 21, 1897

590,257

 
Cooper, James Elevator safety device

Apr. 2, 1895

536,605

 
Cooper, John R. Process of reacting isocyanate and hydroxy compound in presence of tertiary amine and hydrogen peroxide

Sept. 14, 1965

3,206,437

 
Cooper, John Richard Separation of distillable isocyanates from their phosgenation masses

Sept. 26, 1972

3,694,323

 
Cooper, John Richard Two-stage phosgenation process for preparing aromatic isocyanates

Feb. 8, 1966

3,234,253

 
Cooper, John Richard Process for isolating a fluorine-containing polymer

Oct. 27, 1970

3,536,683

 
Cooper, Jonas Shutter and fastening

May 1, 1883

276,563

 
Cornwell, Phillip W. Draft regulator

Oct. 2, 1888

390,284

 
Cornwell, Phillip W. Draft regulator

Feb. 7, 1893

491,082

 
Cosby, Thomas L. Closed cycle energy conversion system

July 30, 1974

3,826,092

 
Cosby, Thomas L. Rotary machine

July 22, 1969

3,456,594

 
Cosgrove, William Francis Automatic stop plug for gas and oil pipes

Mar. 17, 1885

313,993

 
Cotton, Donald J. Capillary liquid fuel nuclear reactor

Apr. 27, 1982

4,327,443

 
Cotton, Donald J. Vertical liquid electrode employed in electrolytic cells

Aug. 9, 1977

4,040,932

 
Cowans, Beatrice L. Embroidered fruit bowl wall hanging and kit

Apr. 5, 1977

4,016,314

 
Cox, Elbert L. Presettable bistable circuits

Aug. 1, 1967

3,334,245

 
Cralle, Alfred L. Ice-cream mold and disher

Feb. 2, 1897

576,395

 
Crawford, Samuel T. Comb

June 14, 1921

1,381,804

 
Creamer, Henry Steam trap and feeder

Dec. 11, 1888

394,463

 
Creamer, Henry Steam trap

Jan. 17, 1888

376,586

 
Creamer, Henry Steam feed-water trap

Mar. 8, 1887

358,964

 
Creamer, Henry Steam feed-water trap

Mar. 17, 1885

313,854

 
Crenshaw, Benjamin A. Signaling device

Dec. 15, 1931

1,836,705

 
Crichton, Francis D. Flag staff

Apr. 26, 1932

1,855,824

 
Crossley, Frank Alphonso Grain refinement of titanium alloys

Dec. 13, 1983

4,420,460

 
Crossley, Frank Alphonso Grain refinement of beryllium with tungsten carbide and titanium diboride

Jan. 7, 1964

3,117,001

 
Crossley, Frank Alphonso Titanium base alloy

July 9, 1957

2,798,807

 
Crosthwait, David Nelson, Jr. Effective temperature control apparatus

Oct. 5, 1937

2,094,738

 
Crosthwait, David Nelson, Jr. Method of heating

Dec. 15, 1936

2,064,197

 
Crosthwait, David Nelson, Jr. Steam heating system

Oct. 16, 1934

1,977,303

 
Crosthwait, David Nelson, Jr. Method and apparatus for setting thermostats

Mar. 6, 1928

1,661,323

 
Crosthwait, David Nelson, Jr. Vacuum heating system

Jan. 1, 1935

1,986,391

 
Crosthwait, David Nelson, Jr. Steam trap

Mar. 24, 1931

1,797,258

 
Crosthwait, David Nelson, Jr. Remote control proportional movement motor

July 9, 1935

2,007,240

 
Crosthwait, David Nelson, Jr. Exhausting mechanism

Jan. 10, 1933

1,893,883

 
Crosthwait, David Nelson, Jr. Refrigerating apparatus and process

Sept. 4, 1934

1,972,704

 
Crosthwait, David Nelson, Jr. Refrigerating method and apparatus

Sept. 4, 1934

1,972,705

 
Crosthwait, David Nelson, Jr. Vacuum pump

Feb. 13, 1934

1,946,524

 
Crosthwait, David Nelson, Jr. Method of steam heating from central station mains

June 19, 1934

1,963,735

 
Crosthwait, David Nelson, Jr. Exhausting method and apparatus

Oct. 19, 1937

2,096,226

 
Crosthwait, David Nelson, Jr. Freezing temperature indicator

Aug. 30, 1932

1,874,911

 
Crosthwait, David Nelson, Jr. Differential vacuum pump

Apr. 22, 1930

1,755,430

 
Crosthwait, David Nelson, Jr. Refrigerating method and apparatus

Aug. 30, 1932

1,874,912

 
Crosthwait, David Nelson, Jr. Regulating radiator valve

Apr. 12, 1938

2,114,139

 
Crosthwait, David Nelson, Jr. Bucket trap

Oct. 10, 1933

1,930,224

 
Crosthwait, David Nelson, Jr. Apparatus for returning water to boilers

Sept. 21, 1920

1,353,457

Crosthwait helped design Radio City Music Hall's heating system
Crosthwait, David Nelson, Jr. Steam heating apparatus

Oct. 16, 1934

1,977,304

 
Crosthwait, David Nelson, Jr. Effective temperature thermostat

July 6, 1937

2,086,258

 
Crosthwait, David Nelson, Jr. One pipe heating system regulating plate

Dec. 14, 1937

2,102,197

 
Crosthwait, David Nelson, Jr. Automatic discharge valve

Aug. 9, 1932

1,871,044

 
Crumble, James H. Float operated mechanism

Sept. 11, 1945

2,384,536

 
Curtis, William Childs Airborne moving-target indicating radar system

July 5, 1977

4,034,373

 
Dacons, Joseph Carl Process for the manufacturing of nitroform and its salts

Mar. 17, 1964

3,125,606

Dacons has numerous patents in organic chemistry
Dacons, Joseph Carl Dodecanitroquaterphenyl

June 17, 1969

3,450,778

 
Dacons, Joseph Carl Recrystallization of hexanitrostilbene from nitric acid and water

Apr. 7, 1981

4,260,847

 
Dammond, William H. Safety system for operating railroads

June 19, 1906

823,513

 
Darkins, John Thomas Ventilator

Feb. 19, 1895

534,322

 
Davidson, Shelby J. Paper-rewind mechanism for adding machines

Apr. 14, 1908

884,721

 
Davis, Israel D. Tonic

Nov. 2, 1886

351,829

 
Davis, Stephen H. Load weighing and totaling device for cranes, hoists and the like

July 20, 1943

2,324,769

 
Davis, Stephen S. Flexible walled wind tunnel nozzle

Apr. 26, 1960

2,933,922

 
Davis, William D. Riding saddle

Oct. 6, 1896

568,939

 
Davis, William R., Jr. Library table

Sept. 24, 1878

208,378

 
Davis, William R., Jr. Game table

May 10, 1887

362,611

 
Dean, Mark E. Microcomputer system with bus control means for peripheral processing devices

July 9, 1985

4,528,626

 
Dedmon, Robert Combined sleigh and boat

June 4, 1929

1,716,230

 
Deitz, William A. Shoe

Apr. 30, 1867

64,205

 
Delaotch, Essex Motor control system for self-serving tables

Sept. 4, 1923

1,466,890

 
Demon, Ronald S. Shoe sole with an adjustable support pattern

Sept. 29, 1998

5,813,142

 
Dent, Anthony L. Toothpaste containing pH-adjusted zeolite

Sept. 14, 1982

4,349,533

 
Dent, Anthony L. Rehydrated silica gel dentifrice abrasive

Aug. 24, 1982

4,346,071

 
Dent, Benjamin A. Procedure entry for a data processor employing a stack

Dec. 15, 1976

3,548,384

 
Dickenson, Robert C. Trolley guard

Aug. 26, 1970

1,314,130

 
Dickinson, Joseph Hunter Volume-controlling means for mechanical musical instruments

June 29, 1909

926,178

 
Dickinson, Joseph Hunter Adjustable tracker for pneumatic playing attachments

Mar. 23, 1909

915,942

 
Dickinson, Joseph Hunter Player-piano

June 11, 1912

1,028,996

 
Dickinson, Joseph Hunter Phonograph

Jan. 8, 1918

1,252,411

 
Dickinson, Joseph Hunter Reed-Organ

May 2, 1899

624,192

 
Diuguid, Lincoln Isaiah Burning efficiency enhancement method

Sept. 3, 1985

4,539,015

 
Dixon, James Car-coupling

Mar. 29, 1892

471,843

 
Dixon, Samuel, Jr. and Malik, Roger J. Monolithic planar doped barrier subharmonic mixer

Jan. 7, 1986

4,563,773

 
Dixon, Samuel, Jr., AuCoin, Thomas R. & Malik, Roger J. Monolithic planar doped barrier limiter

Mar. 31, 1987

4,654,609

 
Dorcas, Lewis B. Stove

Oct. 15, 1907

868,417

 
Dorman, Linneaus Cuthbert Absorbents for airborne formaldehyde

May 14, 1985

4,517,111

 
Dorman, Linneaus Cuthbert Composites of unsintered calcium phosphates and synthetic biodegradable polymers useful as hard tissue prosthetics

June 27, 1989

4,842,604

 
Dorman, Linneaus Cuthbert 3,5-Dihalo-4-cyanoalkoxy phenols

Sept. 23, 1969

3,468,926

Dorman was a prolific inventor with many chemical patents
Dorsey, Osbourn Door-holding device

Dec. 10, 1878

210,764

 
Dorticus, Clatonia Joaquin Machine for embossing photographs

Apr. 16, 1895

537,442

 
Dorticus, Clatonia Joaquin Hose leak stop

July 18, 1899

629,315

 
Dorticus, Clatonia Joaquin Device for applying coloring liquids to sides of soles or heels of shoes

Mar. 19, 1895

535,820

 
Dorticus, Clatonia Joaquin Photographic print washer

Apr. 23, 1895

537,968

 
Douglass, William Band-twister

May 2, 1905

789,120

 
Douglass, William Carrier chain

May 2, 1905

789,122

 
Douglass, William Self-binding harvester

May 2, 1905

789,010

 
Downing, Gertrude E. and Desjardin, William P. Reciprocating corner and baseboard cleaning auxiliary attachment for rotary floor treatment machines

Feb. 13, 1973

3,715,772

 
Downing, Philip B. Street letter box

Oct. 27, 1891

462,092

 
Downing, Philip B. Street railway switch

June 17, 1890

430, 118

 
Downing, Philip B. Letter box

Oct. 27, 1891

462,093

 
Doyle, James Serving apparatus for dining rooms

Oct. 2, 1900

659,057

 
Doyle, James Automatic serving system

Mar. 5, 1912

1,019,137

 
Doyle, James Server for automatic serving systems

June 2, 1914

1,098,788

 
Dugger, Cortland Otis Method for growing single oxide crystals

July 27, 1971

3,595,803

Dugger invented "Duggerite" (barium magnesium aluminate)
Dugger, Cortland Otis Aluminum nitride single crystal growth from a molten mixture with calcium nitride

Jan. 20, 1976

3,933,573

 
Dugger, Cortland Otis Solid-state laser produced by a chemical reaction between a germinate and an oxide dopant

Nov. 30, 1971

3,624,547

 
Dunnington, James Henry Horse detacher

Mar. 16, 1897

578,979

 
Dyer, Charles A. Teaching aid

May 15, 1973

3,732,632

 
Edelin, Benedict F. Pneumatic toy pistol

Jan. 9, 1923

1,441,975

 
Edmonds, Thomas Henry Separating screen

July 20, 1897

586,724

 
Elder, Clarence L. Bidirectional monitoring and control system

Dec. 28, 1976

4,000,400

 
Elder, Clarence L. Timing device

Jan. 12, 1965

3,165,188

 
Elder, Clarence L. Sweepstake programmer

Jan. 19, 1971

3,556,531

 
Elder, Clarence L. Programmed association game

July 20, 1971

3,594,003

 
Elder, Clarence L. Non-capsizable container

Feb. 6, 1968

3,367,525

 
Elder, Clarence L. Random unit generator amusement device

Nov. 6, 1973

3,770,269

 
Elkins, Thomas Combined dining, ironing table, and quilting frame

Feb. 22, 1870

100,020

 
Elkins, Thomas Refrigerating apparatus

Nov. 4, 1879

221,222

 
Elkins, Thomas Chamber commode

Jan. 9, 1872

122,518

 
Emile, Philip E. Transistorized multivibrator circuit adapted to oscillate for only a predetermined time

Oct. 24, 1961

3,005,963

 
Emile, Philip E. Transistorized gating circuit

May 2, 1961

2,982,868

 
Engram, Robert L. Shock falsing inhibitor circuit for a plural tone receiver

Apr. 23, 1974

3,806,938

 
Evans, James C. Airplane appliance

Mar. 11, 1930

1,749,858

 
Evans, John H. Convertible settee and bed

Oct. 5, 1897

591,095

 
Faulkner, Henry Ventilated shoe

Apr. 29, 1890

426,495

 
Ferrell, Frank J. Apparatus for melting snow

May 27, 1890

428,670

 
Ferrell, Frank J. Steam trap

Feb. 11, 1890

420,993

 
Ferrell, Frank J. Valve

Jan. 26, 1892

467,796

 
Ferrell, Frank J. Valve

Apr. 14, 1891

450,451

 
Ferrell, Frank J. Valve

May 27, 1890

428,671

 
Ferrell, Frank J. Valve

Nov. 10, 1891

462,762

 
Fisher, David A. Joiners- clamp

Apr. 20, 1875

162,281

 
Fisher, David A. Furniture casters

Mar. 14, 1876

174,794

 
Flemmings, Robert F., Jr. Guitar

Mar. 30, 1886

338,727

 
Fletcher, Sylvester J. Refuse container

Sept. 18, 1990

D310,744

 
Forbes, Dennis A. Design for a card for a chemistry card game

Apr. 17, 1934

D 91,996

 
Francis, Dawn E. Novel organic fertilizer and production thereof

Sept. 18, 1990

4,957,534

 
Freeman, Louis W. Cuff for trousers

May 19, 1931

1,805,577

 
Frye, Clara C. Surgical appliance

Mar. 19, 1907

847,758

 
Frye, Irvin S. Adjustable shackle

Sept. 23, 1969

3,468,123

 
Gant, Virgil Arnett Hair treating composition and method of use for setting

June 19, 1956

2,750,947

 
Gant, Virgil Arnett Method for treating hair

June 23, 1953

2,643,375

 
Gant, Virgil Arnett Ammonium polysiloxanolate hair treating composition and method for using same

Apr. 2, 1957

2,787,274

 
Garner, Albert Y. Novel phosphonyl polymers

Mar. 31, 1964

3,127,357

 
Garner, Albert Y. Flame retardant

Nov. 2, 1976

3,989,702

 
Gaskin, Frances C. Sun protectant composition and method

Feb. 21, 1989

4,806,344

 
Gay, Eddie Charles Cathode for a secondary electrochemical cell

Sept. 23, 1975

3,907,589

 
Gay, Eddie Charles Compartmented electrode structure

June 14, 1977

4,029,860

 
Gay, Eddie Charles Method of preparing electrodes with porous current collector structures and solid reactants for secondary electrochemical cells

Jan. 20, 1976

3,933,520

 
Gill, Vincent A. Quick disconnect valved coupling

Aug. 9, 1960

2,948,553

 
Gilliard, Joseph W. Car park

Nov. 20, 1956

2,771,200

 
Gloster, Clay S. Method and apparatus for high precision weighted random pattern generation

Aug. 27, 1991

5,043,988

 
Goldsberry, Ronald E. Ultraviolet and thermally stable polymer compositions

June 22, 1976

3,965,096

 
Goode, Sarah E. Cabinet bed

July 14, 1885

322,177

Goode was the first African-American woman to obtain a U.S. patent
Gourdine, Meredith C. Electrogasdynamic converter with resistive channel

Oct. 12, 1971

3,612,923

 
Gourdine, Meredith C. Electrogasdynamic coating system

Feb. 12, 1985

4,498,631

 
Gourdine, Meredith C. Electrogasdynamic coating system

Feb. 21, 1984

4,433,003

 
Gourdine, Meredith C. Electrostatic mass per unit volume dust monitor

Feb. 27, 1973

3,718,029

 
Gourdine, Meredith C. Turbulence inducing electrogasdynamic precipitator

June 1, 1971

3,581,468

 
Gourdine, Meredith C. Method and apparatus for electrogasdynamic coating

June 27, 1972

3,673,463

 
Gourdine, Meredith C. Method and apparatus for improved cooling of hot materials

Dec. 3, 1985

4,555,909

 
Gourdine, Meredith C. Electrostatic painting method and apparatus

Oct. 19, 1971

3,613,993

 
Gourdine, Meredith C. Apparatus for suppressing airborne particles

Sept. 11, 1973

3,757,491

 
Gourdine, Meredith C. Copying system using electrogasdynamics

July 13, 1971

3,592,541

 
Gourdine, Meredith C. Alternating current systems employing multiple electrogasdynamic devices

June 15, 1971

3,585,420

 
Gourdine, Meredith C. Improved acoustic image reproduction system using a piezoelectric printer and electrogasdynamics

Apr. 6, 1971

3,573,845

 
Gourdine, Meredith C. Electrogasdynamic systems and methods

June 1, 1971

3,582,694

 
Gourdine, Meredith C. Electrogasdynamic method and apparatus for detecting the properties of particulate matter entrained in gases

June 10, 1969

3,449,667

 
Gourdine, Meredith C. Electrogasdynamic coating system

Mar. 4, 1986

4,574,092

 
Gourdine, Meredith C. Electrogasdynamic precipitator utilizing retarding fields

Mar. 21, 1972

3,650,092

 
Gourdine, Meredith C. Method and apparatus for converting chemical and thermal energy into electricity

Apr. 10, 1990

4,916,033

 
Gourdine, Meredith C. Apparatus and method for cooling heat generating electronic components in a cabinet

Mar. 22, 1994

5,297,005

 
Gourdine, Meredith C. Apparatus and method for cooling heat generating electronic components in a cabinet

June 6, 1995

5,422,787

 
Gourdine, Meredith C. Method and apparatus for producing multivortex fluid flow

Oct. 10, 1995

5,456,596

 
Gourdine, Meredith C. Method and apparatus for converting chemical and thermal energy into electricity

Jan. 30, 1996

5,487,957

 
Gourdine, Meredith C. Method and apparatus for transferring heat, mass, and momentum between a fluid and a surface

Aug. 27, 1996

5,548,907

 
Gourdine, Meredith C. Method for airport fog precipitation

June 9, 1987

4,671,805

 
Gourdine, Meredith C. Method and apparatus for producing multivortex fluid flow

July 25, 1989

4,850,537

 
Gourdine, Meredith C. Electrostatic precipitator system

Dec. 5, 1972

3,704,572

 
Grant, George F. Golf tee

Dec. 12, 1899

638,920

Grant invented the special tapered golf tee.
Grant, William S. Curtain rod support

Aug. 4, 1896

565,075

 
Gray, Robert H. Baling press

Aug. 28, 1894

525,203

 
Gray, Robert H. Cistern cleaner

Apr. 9, 1895

537,151

 
Green, Harry James, Jr. Substrate for mounting filaments in close-spaced parallel array

June 8, 1971

3,584,130

 
Green, Harry James, Jr. Method of making a striated support for filaments

Dec. 15, 1970

3,548,045

 
Green, Harry James, Jr. Method for sealing microelectronic device packages

Mar. 14, 1972

3,648,357

 
Greene, Ervin G. Guard for downspouts

Oct. 10, 1933

1,930,354

 
Greene, Frank S., Jr. Use of faulty storage circuits by position coding

Apr. 4, 1972

3,654,610

 
Gregg, Clarence Machine gun

Aug. 27, 1918

1,277,307

 
Gregory, James Motor

Apr. 26, 1887

361,937

 
Grenon, Henry Razor stropping device

Feb. 18, 1896

554,867

 
Griffin, Bessie Virginia Portable receptacle support

Apr. 24, 1951

2,550,554

 
Griffin, Michael D. Progressive throttle positioning system

Oct. 9, 1984

4,476,068

 
Griffin, Michael D. Throttle return spring assembly

Mar. 18, 1986

4,576,762

 
Griffin, Thomas Walter Pool table attachment

June 13, 1899

626,902

 
Grimes, Hermon L. Airplane

Nov. 22, 1938

2,137,486

 
Gunn, Selim W. Shoe

Jan. 16, 1900

641,642

 
Gurley, Clyde Edward Programmable external dial operating device

Apr. 7, 1970

3,505,483

 
Gurley, Clyde Edward Automatic telephone alarm apparatus

Apr. 7, 1970

3,505,476

 
Haines, James Henry Portable shampooing basin

Sept. 28, 1897

590,833

 
Hale, William Motor vehicle

June 5, 1928

1,672,212

 
Hale, William Aeroplane

Nov. 24, 1925

1,563,278

 
Hall, Lloyd Augustus Synergistic antioxidant containing amino acids

Aug. 8, 1950

2,518,233

 
Hall, Lloyd Augustus Sterilizing colloid materials

Feb. 13, 1940

2,189,949

 
Hall, Lloyd Augustus Synergistic antioxidant

June 13, 1950

2,511,802

 
Hall, Lloyd Augustus Antioxidant flakes

June 13, 1950

2,511,803

 
Hall, Lloyd Augustus Antioxidant salt

June 13, 1950

2,511,804

 
Hall, Lloyd Augustus Antioxidant

Mar. 14, 1950

2,500,543

 
Hall, Lloyd Augustus Gelatin-base coating for food and the like

Aug. 2, 1949

2,477,742

 
Hall, Lloyd Augustus Production of protein hydrolysate

Jan. 2, 1951

2,536,171

 
Hall, Lloyd Augustus Antioxidant

Mar. 22, 1949

2,464,927

 
Hall, Lloyd Augustus Production of protein hydrolysate flavoring material

Jan. 14, 1947

2,414,299

 
Hall, Lloyd Augustus Capsicum-containing seasoning composition

Sept. 25, 1945

2,385,412

 
Hall, Lloyd Augustus Protein composition of matter

Aug. 5, 1941

2,251,334

 
Hall, Lloyd Augustus Manufacture of nitrogen-fortified whey concentrate

Nov. 28, 1944

2,363,730

 
Hall, Lloyd Augustus Sterilization process

Mar. 9, 1943

RE 22,284

 
Hall, Lloyd Augustus Yeast food

June 15, 1943

2,321,673

 
Hall, Lloyd Augustus Inhibited detergent composition

Apr. 18, 1939

2,155,045

 
Hall, Lloyd Augustus Sterilization of hospital and physicians' supplies

May 31, 1960

2,938,766

 
Hall, Lloyd Augustus Phospholipoid carrier for antioxidant

Mar. 22, 1949

2,464,928

 
Hall, Lloyd Augustus Solid seasoning composition containing lecithin

Mar. 3, 1936

2,032,612

 
Hall, Lloyd Augustus Inhibited detergent composition

Apr. 18, 1939

2,155,046

 
Hall, Lloyd Augustus Manufacture of protein composition

Apr. 25, 1939

2,155,417

 
Hall, Lloyd Augustus Composition of matter

Aug. 29, 1939

2,171,428

 
Hall, Lloyd Augustus Sterilization process

Feb. 13, 1940

2,189,947

 
Hall, Lloyd Augustus Sterilization of pancreatin

Feb. 13, 1940

2,189,948

 
Hall, Lloyd Augustus Edible dusting powder

Jan. 17, 1939

2,144,371

 
Hall, Lloyd Augustus Puncture sealing composition and manufacture thereof

Sept. 5, 1944

2,357,650

 
Hall, Lloyd Augustus Homogeneous alkaline detergents and method of producing same

Jan. 3, 1939

2,142,871

 
Hall, Lloyd Augustus Curing process for bacon

May 15, 1951

2,553,533

 
Hall, Lloyd Augustus Curing of meats and the like

May 17, 1938

2,117,478

 
Hall, Lloyd Augustus Antioxidant composition

Nov. 27, 1956

2,772,170

 
Hall, Lloyd Augustus Stabilized solid seasoning composition

Mar. 19, 1935

1,995,121

 
Hall, Lloyd Augustus Nonbleaching solid seasoning composition

Mar. 19, 1935

1,995,120

 
Hall, Lloyd Augustus Solid seasoning composition containing capsicum and chloride

Mar. 19, 1935

1,995,119

 
Hall, Lloyd Augustus Synergistic antioxidants containing antioxidant acids

May 4, 1954

2,677,616

 
Hall, Lloyd Augustus Manufacture of meat-curing composition

Feb. 9, 1954

2,668,770

 
Hall, Lloyd Augustus Stable curing salt composition and manufacture thereof

Feb. 9, 1954

2,668,771

 
Hall, Lloyd Augustus Antioxidant

Jan. 16, 1951

RE 23,329

 
Hall, Lloyd Augustus Fatty monoglyceride citrate and anti-oxidant containing the same

Nov. 12, 1957

2,813,032

 
Hall, Lloyd Augustus Spice extraction and product

Oct. 16, 1951

2,571,867

 
Hall, Lloyd Augustus Alkaline detergent compound

Jan. 3, 1939

2,142,870

 
Hall, Lloyd Augustus Antioxidant material and use of said material in treating meat

Nov. 27, 1956

2,772,169

 
Hall, Lloyd Augustus Method of preserving fresh frozen pork trimmings

July 29, 1958

2,845,358

 
Hall, Lloyd Augustus Vitamin concentrate

Nov. 26, 1935

2,022,464

 
Hall, Lloyd Augustus Antioxidant composition

Apr. 25, 1961

2,981,628

 
Hall, Lloyd Augustus Antioxidant composition

Aug. 14, 1956

2,758,931

 
Hall, Lloyd Augustus Manufacture of stable dry papain composition

Mar. 15, 1949

2,464,200

 
Hall, Lloyd Augustus Meat-curing salt composition

Nov. 13, 1956

2,770,548

 
Hall, Lloyd Augustus Stabilized nitrite salt composition

Jan. 31, 1939

2,145,417

 
Hall, Lloyd Augustus Spice extract and method of producing

Oct. 16, 1951

2,571,948

 
Hall, Lloyd Augustus Synergistic antioxidants and the methods of preparing the same

Jan. 3, 1950

2,493,288

Hall has over 100 patents in food chemistry
Hall, Lloyd Augustus Reaction product of polyoxyethylene derivative of a fatty acid partial ester of hexitol anhydride and citric acid and an antioxidant containing the same

Sept. 4, 1956

2,761,784

 
Hall, Lloyd Augustus Seasoning material derived from red peppers and the derivation thereof

Oct. 28, 1941

2,260,897

 
Hall, Lloyd Augustus Meat-curing salt composition

Nov. 13, 1956

2,770,550

 
Hall, Lloyd Augustus Meat-curing salt composition

Nov. 13, 1956

2,770,549

 
Hall, Lloyd Augustus Asphalt emulsion and manufacture thereof

Oct. 18, 1932

1,882,834

 
Hall, Lloyd Augustus Manufacture of bleached pepper products

Oct. 26, 1937

2,097,405

 
Hall, Lloyd Augustus Meat-curing salt composition

Nov. 13, 1956

2,770,551

 
Hall, Lloyd Augustus and Griffith, Carroll L. Sterilizing foodstuffs

Feb. 8, 1938

2,107,697

 
Hall, Lloyd Augustus and Griffith, Enoch L. Protective coating

June 13, 1933

1,914,351

 
Hall, Virginia E. Embroided fruit bowl wall hanging

April 5, 1977

4,016,314

 
Hammonds, Julia Terry Apparatus for holding yarn skeins

Dec. 15, 1896

572,985

 
Harding, Felix Harding Extension banquet table

Nov. 22, 1898

614,468

 
Harney, Michael C. Lantern or lamp

Aug. 19, 1884

303,844

 
Harper, David Bookcase

June 6, 1961

D 190,500

 
Harper, David Mobile utility rack

Apr. 12, 1960

D 187,654

 
Harper, Solomon Electrical hair treating implement

Aug. 5, 1930

1,772,002

 
Harper, Solomon Thermostatic controlled hair curlers, combs, and irons

Aug. 11, 1953

2,648,757

 
Harper, Solomon Thermostatic controlled fur and material dressing equipment

June 21, 1955

2,711,095

 
Harris, Betty W. Spot test for 1,3,5-triamino-2,4,6-trinitrobenzene, TATB

Oct. 21, 1986

4,618,452

 
Harris, Edward L. Apparatus for handling corrosive acid substances

July 24, 1956

2,756,129

 
Harrison, Emmett Scott Turbojet afterburner engine with two-position exhaust nozzle

Jan. 6, 1981

4,242,865

 
Harrison, Emmett Scott Gas turbine air compressor and control therefor

Sept. 21, 1971

3,606,971

 
Harrison, Jesse Combination tooth brush and paste holder

Feb. 9, 1932

1,844,036

 
Harwell, William D. Apparatus and method of capturing an orbiting spacecraft

May 12, 1987

4,664,344

 
Hawkins, Joseph Gridiron

Mar. 26, 1845

3,973

 
Hawkins, Randall Harness attachment

Oct. 4, 1887

370,943

 
Hawkins, Walter Lincoln Preparation of 1,2 , Di-Primary amines

Feb. 26, 1952

2,587,043

Hawkins has numerous chemical patents
Hawkins, Walter Lincoln Stabilized alpha-mono-olefinic polymers

Feb. 14, 1967

3,304,283

 
Hawkins, Walter Lincoln Stabilized straight-chain hydrocarbons

June 2, 1959

2,889,306

 
Hawkins, Williams S. Automobile seat cape

Feb. 28, 1933

1,899,327

 
Headen, Minnis Foot power hammer

Oct. 5, 1886

350,363

 
Hearns, Robert Sealing attachment for bottles

Feb. 15, 1898

598,929

 
Hearns, Robert Detachable car fender

July 4, 1899

628,003

 
Hearns, William Device for removing and inserting taps and plugs in water mains

Oct. 8, 1912

1,040,538

 
Helm, Tony W. Universal joint

Aug. 28, 1956

2,760,358

 
Henderson, Henry Fairfax, Jr. Weight loss control system

Sept. 5, 1978

4,111,336

 
Hill, Henry Aaron Foamable composition comprising a thermoplastic polymer and barium azocarbonate and method of foaming

July 14, 1964

3,141,002

 
Hill, Henry Aaron Manufacture of azodicarbonamide

June 13, 1961

2,988,545

 
Hill, Henry Aaron Curing furfuryl-alcohol-modified urea formaldehyde condensates

Jan. 10, 1967

3,297,611

 
Hilyer, Andrew F. Water evaporator attachment for hot air registers

Aug. 26, 1890

435,095

 
Hilyer, Andrew F. Evaporator for hot air registers

Oct. 14, 1890

438,159

 
Hines, Samuel J. Life preserver

May 4, 1915

1,137,971

 
Hines, Samuel J. Lawn mower attachment

May 30, 1933

1,911,278

 
Hodge, John E. Novel reductones and methods of making them

May 10, 1960

2,936,308

Hodge has numerous patents in the field of food technology
Hodge, John E. Glucose-amine sequestrants

Aug. 15, 1961

2,996,449

 
Hodge, John E. Substituted benzodioxan sweetening compound

Mar. 27, 1979

4,146,650

 
Hodges, Clarence B. and McCoy, Elijah Lubricator

Nov. 18, 1884

308,258

 
Holmes, Elijah H. Gage

Nov. 12, 1895

549,513

 
Holmes, Lydia M. Knockdown wheeled toy

Nov. 14, 1950

2,529,692

 
Hopkins, Harry C. Power controller

Nov. 3, 1987

4,704,570

 
Horne, June B. Emergency escape apparatus and method of using same

Feb. 12, 1985

4,498,557

 
Howard, Darnley E. Optical apparatus for indicating the position of a tool

Jan. 24, 1939

2,145,116

 
Howard, Darnley Moseley Method of making radome with an integral antenna

June 24, 1969

3,451,127

 
Hughes, Isaiah D. Combined excavator and elevator

Nov. 26, 1901

687,312

 
Hull, Wilson E. Sublimination timing switch

Nov. 15, 1966

3,286,064

 
Hull, Wilson E. Mass release mechanism for satellites

Jan. 28, 1969

3,424,403

 
Hunter, John W. Portable weighing scale

Nov. 3, 1896

570,553

 
Huntley, James E. Emergency fire escape mechanism

Apr. 29, 1975

3,880,255

 
Hyde, Robert N. Composition for cleaning and preserving carpets

Nov. 6, 1888

392,205

 
Ingram, Clifton M. Well drilling tool

June 16, 1925

1,542,776

 
Ingram, Clifton M. Railroad crossing flag signal

Feb. 10, 1925

1,526,215

 
Jackson, Benjamin F. Heating apparatus

Mar. 1, 1898

599,985

 
Jackson, Benjamin F. Matrix drying apparatus

May 10, 1898

603,879

 
Jackson, Benjamin F. Gas burner

Apr. 4, 1899

622,482

 
Jackson, Benjamin F. Steam boiler

Jan. 7, 1902

690,730

 
Jackson, Brian G. Portable highway warning device with frangible retainer ring

July 7, 1998

5,775,834

 
Jackson, Harry Advertising apparatus

June 28, 1932

1,865,374

 
Jackson, Harry and Jackson, Mary E. Burglar alarm switch

Feb. 23, 1937

2,071,343

 
Jackson, Harry and Jackson, Mary E. Protective appliance

Apr. 21, 1936

2,038,491

 
Jackson, Harry and Jackson, Mary E. Protective appliance

Sept. 1, 1936

2,053,035

 
Jackson, Henry Method and composition for autocatalytically depositing copper

Apr. 1, 1969

3,436,233

 
Jackson, Henry A. Kitchen table

Oct. 6, 1896

569,135

 
Jackson, Norman Pneumatic tire

July 12, 1921

1,384,134

 
Jackson, William H. Railway switch

Nov. 16, 1897

593,665

 
Jackson, William H. Railway switch

Mar. 9, 1897

578,641

 
Jackson, William H. Automatic locking switch

Aug. 23, 1898

609,436

 
Jefferson, Donald E. Digital data storage system

July 18, 1972

3,678,468

 
Jefferson, Donald E. Triggered exploding wire device

Nov. 29, 1966

3,288,068

 
Jennings, Thomas L. Dry scouring

Mar. 3, 1821

3306X

This is the first patent granted to an African-American inventor
Johnson, Andrew R. Precision digital delay circuit

Apr. 2, 1968

3,376,436

 
Johnson, Anthony M. Photodetector having semi-insulating material and a contoured, substantially periodic surface

Nov. 26, 1985

4,555,622

 
Johnson, Anthony M. High speed circuit measurements using photoemission sampling

Jan. 26, 1988

4,721,910

 
Johnson, Anthony M. Integrated optical device having integral photodetector

Nov. 3, 1987

4,703,996

 
Johnson, Daniel Lawn mower attachment

Sept. 10, 1889

410,836

 
Johnson, Daniel Rotary dining table

Jan. 15, 1889

396,089

 
Johnson, Daniel Grass receiver for lawn mowers

June 10, 1890

429,629

 
Johnson, George M. Automatic stopping and releasing device for mine cars

Dec. 4, 1917

1,249,106

 
Johnson, Isaac R. Bicycle frame

Oct. 10, 1899

634,823

 
Johnson, John Arthur Wrench

Apr. 18, 1922

1,413,121

Johnson was the world's first African-American heavyweight champion
Johnson, John Arthur Theft-preventing device for vehicles

Dec. 12, 1922

1,438,709

 
Johnson, Lonnie G. System for detonating a percussion cap in a toy projectile

Jan. 13, 1998

5,707,270

 
Johnson, Lonnie G. Double tank pinch trigger pump water gun

Dec. 31, 1996

RE 35,412

 
Johnson, Lonnie G. Electric pump toy water gun

Dec. 24, 1996

5,586,688

 
Johnson, Lonnie G. Pneumatic launcher for a toy projectile and the like

Sept. 10, 1996

5,553,598

 
Johnson, Lonnie G. Compressed air gun with magazine indexer

Jan. 14, 1997

5,592,931

 
Johnson, Lonnie G. Rapid fire compressed air gun

Jan. 28, 1997

5,596,978

 
Johnson, Lonnie G. Compressed air gun

May 6, 1997

5,626,123

 
Johnson, Lonnie G. Toy rocket launcher

Aug. 5, 1997

5,653,216

 
Johnson, Lonnie G. Toy rocket with velocity dependent chute release

Aug. 27,1996

5,549,497

 
Johnson, Lonnie G. Compressed air gun with single action pump

Dec. 30, 1997

5,701,879

 
Johnson, Lonnie G. Rapid fire compressed air gun

Jan. 20, 1998

5,709,199

 
Johnson, Lonnie G. Hair drying curler apparatus

Jan. 27, 1998

5,711,324

 
Johnson, Lonnie G. Voice activated compressed air toy gun

Mar. 10, 1998

5,724,955

 
Johnson, Lonnie G. Rapid fire compressed air gun

Dec. 23, 1997

5,699,781

 
Johnson, Lonnie G. Liquid jet propelled transporter and launcher toy

Mar. 30, 1993

5,197,452

 
Johnson, Lonnie G. Smoke detecting timer controlled thermostat

July 8, 1980

4,211,362

 
Johnson, Lonnie G. Wet diaper detector

Nov. 21, 1995

5,469,145

 
Johnson, Lonnie G. Toy airplane and launcher

Mar. 7, 1995

5,395,275

 
Johnson, Lonnie G. Toy rocket with velocity dependent chute release

Apr. 18, 1995

5,407,375

 
Johnson, Lonnie G. Digital distance measuring instrument

Mar. 6, 1979

4,143,267

 
Johnson, Lonnie G. Variable resistance type sensor controlled switch

Jan. 1, 1980

4,181,843

 
Johnson, Lonnie G. Automatic sprinkler control

Mar. 3, 1981

4,253,606

 
Johnson, Lonnie G. Thermal energy accumulation

Oct. 16, 1984

4,476,693

 
Johnson, Lonnie G. Soil moisture potential determination by weight measurement

Apr. 9, 1985

4,509,361

 
Johnson, Lonnie G. Squirt gun

May 27, 1986

4,591,071

 
Johnson, Lonnie G. Johnson tube, a thermodynamic heat pump

Feb. 16, 1988

4,724,683

 
Johnson, Lonnie G. Flow actuated pulsator

July 19, 1988

4,757,946

 
Johnson, Lonnie G. Pinch trigger hand pump water gun with non-detachable tank

Apr. 26, 1994

5,305,919

 
Johnson, Lonnie G. Double tank pinch trigger pump water gun

Sept. 29, 1992

5,150,819

 
Johnson, Lonnie G. Thermionic generator

July 30, 1996

5,541,464

 
Johnson, Lonnie G. Pinch trigger hand pump water gun with multiple tanks

Aug. 24, 1993

5,238,149

 
Johnson, Lonnie G. Wet diaper detector

Nov. 30, 1993

5,266,928

 
Johnson, Lonnie G. Combined aerodynamic glider and launcher

Dec. 21,1993

D 342,551

 
Johnson, Lonnie G. Pinch trigger water gun with rearwardly mounted hand pump

Mar. 8, 1994

5,292,032

 
Johnson, Lonnie G. Hair drying curler apparatus

Apr. 5, 1994

5,299,367

 
Johnson, Lonnie G. Low pressure, high volume pressurized water gun

June 21, 1994

5,322,191

 
Johnson, Lonnie G. Water arrow projecting bow

July 26, 1994

5,332,120

 
Johnson, Lonnie G. Pressurized toy rocket with rapid action release mechanism

Jan. 17, 1995

5,381,778

 
Johnson, Lonnie G. Fluid pulsator with accumulator for frequency control

Mar. 21, 1995

5,398,873

 
Johnson, Lonnie G. Pressurized air/water rocket and launcher

May 16, 1995

5,415,153

 
Johnson, Lonnie G. Fluid powering and launching system for a toy vehicle

Mar. 19, 1996

5,499,940

 
Johnson, Lonnie G. Air pressure toy rocket launcher

July 23, 1996

5,538,453

 
Johnson, Lonnie G. Pinch trigger pump water gun

Dec. 24, 1991

5,074,437

 
Johnson, Paul E. Therapeutic lamps

Jan. 19, 1932

1,842,100

 
Johnson, Payton Swinging chair

Nov. 15, 1881

249,530

 
Johnson, Powell Eye protector

Nov. 2, 1880

234,039

 
Johnson, Wesley Velocipede

June 20, 1899

627,335

 
Johnson, William A. Paint vehicle

Dec. 4, 1888

393,763

 
Johnson, Willie Harry Mechanism for overcoming dead centers

Oct. 11, 1898

612,345

 
Johnson, Willie Harry Mechanism for overcoming dead centers

Feb. 4, 1896

554,223

 
Johnson, Willis Egg beater

Feb. 5, 1884

292,821

 
Jones, Albert A. and Long, Amos E. Caps for bottles, jars, etc.

Sept. 13, 1898

610,715

 
Jones, Clinton Electric release for toy guns

June 21, 1949

2,474,054

 
Jones, Felix B. Firearm

Sept. 25, 1928

1,685,673

 
Jones, Frederick McKinley Method and means for preserving perishable foodstuffs in transit

Feb. 12, 1957

2,780,923

 
Jones, Frederick McKinley Engine actuated ventilating system

Sept. 26, 1950

2,523,273

 
Jones, Frederick McKinley Thermostat and temperature control system

Feb. 23, 1960

2,926,005

 
Jones, Frederick McKinley Air conditioning unit

July 4, 1950

D 159,209

 
Jones, Frederick McKinley Rotary compressor

Apr. 18, 1950

2,504,841

 
Jones, Frederick McKinley Design for air conditioning unit

Apr. 28, 1942

D 132,182

 
Jones, Frederick McKinley Means operated by a starter generator for cooling a gas engine

July 12, 1949

2,475,843

 
Jones, Frederick McKinley Methods and means of defrosting a cold diffuser

Jan. 19, 1954

2,666,298

 
Jones, Frederick McKinley Means for thermostatically operating gas engines

July 26, 1949

2,477,377

 
Jones, Frederick McKinley Means for automatically stopping and starting gas engines

Dec. 21, 1943

2,337,164

 
Jones, Frederick McKinley Refrigeration control device

Jan. 8, 1952

2,581,956

 
Jones, Frederick McKinley Prefabricated refrigerator construction

Dec. 26, 1950

2,535,682

 
Jones, Frederick McKinley Air conditioning unit

July 12, 1949

2,475,841

Jones' inventions made it possible to refrigerate trucks
Jones, Frederick McKinley Two-cycle gas engine

Mar. 11, 1947

2,417,253

 
Jones, Frederick McKinley Two-cycle gas engine

May 29, 1945

2,376,968

 
Jones, Frederick McKinley Apparatus for heating or cooling atmosphere within an enclosure

Oct. 24, 1950

2,526,874

 
Jones, Frederick McKinley Means for preventing frosting of evaporator heat exchangers

May 31, 1949

2,471,692

 
Jones, Frederick McKinley Starter generator

July 12, 1949

2,475,842

 
Jones, Frederick McKinley Control device for internal combustion engine

Sept. 2, 1958

2,850,001

 
Jones, Frederick McKinley Removable cooling units for compartments

Dec. 14, 1943

2,336,735

 
Jones, Frederick McKinley Ticket dispensing machine

June 27, 1939

2,163,754

 
Jones, Frederick McKinley System for controlling operation of refrigeration units

May 23, 1950

2,509,099

 
Jones, Frederick McKinley Locking mechanism

Aug. 4, 1953

2,647,287

 
Jones, Frederick McKinley Method and means for air conditioning

Dec. 7, 1954

2,696,086

 
Jones, Frederick McKinley Removable cooling unit for compartments

May 11, 1948

RE 23,000

 
Jones, Howard St. Claire, Jr. Dielectric-loaded antenna with matching window

June 30, 1970

3,518,683

 
Jones, Howard St. Claire, Jr. Electronically scanned microwave antennas

Aug. 23, 1966

3,268,901

Jones has many patents in the area of microwave and antennas
Jones, Howard St. Claire, Jr. Waveguide components

July 24, 1962

3,046,507

 
Jones, Howard St. Claire, Jr. Reciprocal ferrite waveguide phase shifter having means to rotate the magnetic field about an axis transverse to the longitudinal axis of the ferrite rod

Aug. 23, 1966

3,268,837

 
Jones, Howard St. Claire, Jr. Antenna testing shield

Apr. 10, 1962

3,029,430

 
Jones, Howard St. Claire, Jr. Conformal edge-slot radiators

Sept. 27, 1977

4,051,480

 
Jones, Howard St. Claire, Jr. Multifrequency series-fed edge slot antenna

Dec. 8, 1981

4,305,078

 
Jones, James C. Portable drill-frame

Jan. 22, 1895

532,881

 
Jones, John Leslie Preparation of substituted phenols

Feb. 14, 1950

2,497,503

 
Jones, John Leslie Smokeless slow burning cast propellant

Sept. 12, 1978

4,112,849

 
Jones, John Leslie Personnel restraint system for vehicular occupants

Sept. 12, 1972

3,690,695

 
Jones, Sylvester S. Manicuring device

Jan. 7, 1930

1,742,862

 
Jones, Wilbert L. Duplex capstan

June 28, 1966

3,258,247

 
Jones, William B. Dentist apparatus

Oct. 19, 1937

2,096,375

 
Jordan, John H. Cocktail table

May 18, 1971

D 220,768

 
Jordan, John H. Dresser

Feb. 16, 1971

D 219,927

 
Jordan, John H. Combined clock and wall plaque

June 22, 1971

D 220,965

 
Joyce, James A. Coal or ore bucket

Apr. 26, 1898

603,143

 
Joyner, Marjorie Stewart Permanent waving machine

Nov. 27, 1928

1,693,515

This patent was assigned to Madame C. J. Walker's company
Julian, Hubert Airplane safety appliance

May 24, 1921

1,379,264

 
Julian, Percy Lavon Recovery of sterols

Oct. 22, 1940

2,218,971

 
Julian, Percy Lavon Preparation of cortisone

June 26, 1956

2,752,339

 
Julian, Percy Lavon Method for preparing 16(alpha)-hydroxypregnenes and intermediates obtained therein

Sept. 20, 1966

3,274,178

 
Julian, Percy Lavon 16-Aminomenthyl-17-alkyltestosterone derivatives

Sept. 15, 1964

3,149,132

Julian was a prolific researcher with over 100 patents worldwide
Julien, Leonard J. Cane planter

Nov. 22, 1966

3,286,858

 
Keelan, Harry Sanderlin Colloidal silver iodide compound and method of preparing same

Dec. 2, 1930

1,783,334

 
Kelley, George W. Steam table

Oct. 26, 1897

592,591

 
Kelly, Kenneth C. Linearly polarized monopulse lobing antenna having cancellation of cross-polarization components in the principal lobe

Nov. 6, 1962

3,063,049

 
Kelly, Lawrence Randolph Programmable external dial operating device

Apr. 7, 1970

3,505,483

 
Kenner, Beatrice Sanitary belt

May 15, 1956

2,745,406

 
Kenner, Mary Beatrice Carrier attachment for invalid walkers

May 18, 1976

3,957,071

 
Kenner, Mary Beatrice Bathroom tissue holder

Oct. 19, 1982

4,354,643

 
Kenner, Mary Beatrice Shower wall and bathtub mounted back washer

Sept. 29, 1987

4,696,068

 
King, James Combination cotton thinning and cultivating machine

Feb. 28, 1928

1,661,122

 
King, John G. Power line sensing appliance theft alarm

Nov. 29, 1966

3,289,194

 
Knox, Lawrence Howland Production of arecoline

May 2, 1950

2,506,458

 
Knox, Lawrence Howland Photochemical preparation of tropilidenes

July 28, 1953

2,647,081

 
Knox, William J., Jr. Coating aids for hydrophilic colloid layers of photographic elements

Nov. 10, 1970

3,539,352

 
Knox, William J., Jr. Coating aids for gelatin compositions

June 12, 1962

3,038,804

 
Knox, William J., Jr. Gelatin coating compositions

Feb. 28, 1967

3,306,749

Knox has approximately 25 patents related to photography
Latimer, Lewis H. Book supporter

Feb. 7, 1905

781,890

 
Latimer, Lewis Howard Lamp fixture

Aug. 30, 1910

968,787

Latimer was one of the "Edison Pioneers" with patents in electricity
Latimer, Lewis Howard Locking rack for hats, coats, and umbrellas

Mar. 24, 1896

557, 076

 
Latimer, Lewis Howard Process of manufacturing carbons

Jan. 17, 1882

252,386

 
Latimer, Lewis Howard Apparatus for cooling and disinfecting

Jan. 12, 1886

334, 078

 
Latimer, Lewis Howard and Brown, Charles W. Water closets for railway cars

Feb. 10, 1874

147,363

 
Latimer, Lewis Howard and Nichols, Joseph V. Electric lamp

Sept. 13, 1881

247,097

 
Latimer, Lewis Howard and Tregoning, John Globe supporter for electric lamps

Mar. 21, 1882

255,212

 
Lavalette, William A. Printing press ( variation )

Sept. 17, 1878

208,208

 
Lavalette, William A. Improvement in printing presses

Sept. 17, 1878

208,184

 
Lee, Arthur Self propelled toy fish

Dec. 22, 1936

2,065,337

 
Lee, Henry Improvements in animal traps

Feb. 12, 1867

61,941

 
Lee, Joseph Kneading machine

Aug. 7, 1894

524,042

 
Lee, Joseph Bread crumbing machine

June 4, 1895

540,553

 
Lee, Lester A. Carbon dioxide laser fuels

Mar. 8, 1977

4,011,116

 
Lee, Maurice William Aromatic pressure cooker and smoker

Sept. 29, 1959

2,906,191

 
Lee, Robert Safety attachment for automotive vehicles

Oct. 4, 1938

2,132,304

 
Leonard, Herbert High impact polystyrene

June 22, 1971

3,586,740

 
Leonard, Herbert Production of hydroxylamine hydrochloride

Jan. 28, 1964

3,119,657

 
Leslie, Frank W. Envelope seal

Sept. 21, 1897

590,325

 
LeVert, Francis Edward Continuous fluid level detector

Feb. 21, 1989

4,805,454

 
LeVert, Francis Edward Threshold self-powered gamma detector for use as a monitor of power in a nuclear reactor

May 23, 1978

4,091,288

LeVert has numerous patents in physics
LeVert, Francis Edward Monitor for deposition on heat transfer surfaces

Feb. 2, 1988

4,722,610

 
Lewis, Anthony L. Window cleaner

Sept. 27, 1892

483,359

 
Lewis, Edward R. Spring gun

May 3, 1887

362,096

 
Lewis, James Earl Antenna feed for two coordinate tracking radars

June 11, 1968

3,388,399

 
Linden, Henry Piano truck

Sept. 8, 1891

459,365

 
Little, Ellis Bridle-bit

Mar. 7, 1882

254,666

 
Logan, Emanuel L., Jr. Door bar latch

July 13, 1971

3,592,497

 
Long, Amos E. and Jones, Albert A. Cap for bottle and jars

Sept. 13, 1898

610,715

 
Loudin, Frederick J. Key fastener

Jan. 9, 1894

512,308

 
Loudin, Frederick J. Fastener for the meeting rails of sashes

Dec. 12, 1893

510,432

 
Love, John Lee Pencil sharpener

Nov. 23, 1897

594,114

 
Love, John Lee Plasterers' hawk

July 9, 1895

542,419

 
Lovell, Henry R. Design for a doorcheck

Sept. 13, 1932

D 87,753

 
Lovett, William E. Motor fuel composition

Sept. 18, 1962

3,054,666

 
Lu Valle, James E. Photographic processes

Nov. 23, 1965

3,219,445

 
Lu Valle, James E. Sensitizing photographic media

Nov. 23, 1965

3,219,451

 
Lu Valle, James E. Photographic medium and methods of preparing same

Nov. 23, 1965

3,219,448

 
MacBeth, Arthur L. Picture projection theater

June 13, 1922

1,419,281

 
MacDonald, Hugh D., Jr. Rocket catapult

June 3, 1969

3,447,767

 
Mack, John L. Participant-identification recording and playback system

Jun. 17, 1986

4,596,041

 
Madison, Shannon L. Electrical wiring harness termination system

Dec. 27, 1988

4,793,820

 
Madison, Shannon L. Refrigerating apparatus

Sept. 28, 1965

3,208,232

 
Madison, Walter G. Flying machine

Dec. 10, 1912

1,047,098

 
Maloney, Kenneth Morgan Alumina coatings for mercury vapor lamps

Mar. 14, 1978

4,079,288

 
Maloney, Kenneth Morgan Alumina coatings for an electric lamp

Feb. 25, 1975

3,868,266

 
Mapp, Calvin R. Disposable syringe

July 5, 1977

4,033,347

 
Marshall, Willis Grain binder

May 11, 1886

341,589

 
Martin, Thomas J. Improvement in fire extinguishers

March 26, 1872

125, 063

 
Martin, Washington A. Lock

Dec. 30, 1890

443,945

 
Martin, Washington A. Lock

July 23, 1889

407,738

 
Mathis, Nathaniel Barber's apron

Oct. 7, 1975

D 237,022

 
Matzeliger, Jan Earnst Nailing machine

Feb. 25, 1890

421,954

 
Matzeliger, Jan Earnst Tack separating and distributing mechanism

Mar. 25, 1890

423,937

 
Matzeliger, Jan Earnst Lasting machine

Sept. 22, 1891

459,899

 
Matzeliger, Jan Earnst Lasting machine

Mar. 20, 1883

274,207

Matzeliger is credited for revolutionizing the U.S. shoe industry
Matzeliger, Jan Earnst Mechanism for distributing tacks, nails, etc.

Nov. 26, 1899

415,726

 
McClennan, Walter N. Coin mechanism

Dec. 9, 1924

1,518,208

 
McClennan, Walter N. Automatic railway car door

Mar. 9,1920

1,333,430

 
McClennan, Walter N. Car door actuating mechanism

Apr. 18, 1922

RE 15,338

 
McCoy, Elijah Lubricator

July 18, 1882

261,166

 
McCoy, Elijah Lubricator

May 29, 1888

383,745

 
McCoy, Elijah Lubricator

Mar. 28, 1882

255,443

 
McCoy, Elijah Lubricator

Feb. 8, 1887

357,491

 
McCoy, Elijah Lubricator

June 16, 1885

320,379

 
McCoy, Elijah Lubricator

May 29, 1888

383,746

 
McCoy, Elijah Lubricator

June 6, 1893

498,809

 
McCoy, Elijah Lubricator

Apr. 5, 1892

472,066

 
McCoy, Elijah Lubricator for slide valves

May 24, 1887

363,529

 
McCoy, Elijah Lubricator

Sept. 13, 1898

610,634

 
McCoy, Elijah Lubricator

Mar. 1, 1892

470,163

 
McCoy, Elijah Lubricator

Oct. 4, 1898

611,759

 
McCoy, Elijah Lubricator

June 27, 1899

627,623

 
McCoy, Elijah Lubricator attachment

Apr. 19, 1887

361,435

 
McCoy, Elijah Dope cup

Sept. 29, 1891

460,215

 
McCoy, Elijah Lubricator

Dec. 29, 1891

465,875

 
McCoy, Elijah Improvement in steam cylinder lubricator

Feb. 1, 1876

173,032

 
McCoy, Elijah Improvement in lubricators

May 27, 1873

139,407

 
McCoy, Elijah Improvement in steam lubricators

Jan. 20, 1874

146,697

 
McCoy, Elijah Improvement in lubricators for steam engines

July 23, 1872

129,843

McCoy received 25 patents for different types of lubricators between 1872 and 1899.
McCoy, Elijah Lubricator

Jan. 9, 1883

270,238

 
McCoy, Elijah Improvement in lubricators for steam engines

Aug. 6, 1872

130,305

 
McCoy, Elijah Improvement in steam cylinder lubricators

July 4, 1876

179,585

 
McCoy, Elijah Oil cup

Nov. 15, 1898

614,307

 
McCoy, Elijah Improvement in ironing tables

May 12, 1874

150,876

 
McCoy, Elijah Steam dome for locomotives

June 16, 1885

320,354

 
McCoy, Elijah and Hodges, Clarence B. Lubricator

Dec. 24, 1889

418,139

 
McCoy, Melvin Multi-purpose uniaxial litter enginery or M.U.L.E.

May 12, 1987

4,664,395

 
McCree, Daniel Portable fire escape

Nov. 11, 1890

440,322

 
McGee, Hansel L. Method of preparation of carbon transfer inks

Oct. 26, 1965

3,214,282

 
McNair, Luther Sanitary attachment for drinking glasses

Aug. 6, 1912

1,034,636

 
Mendenhall, Albert Holder for driving reins

Nov. 28, 1899

637,811

 
Miles, Alexander Elevator

Oct. 11, 1887

371,207

 
Millington, James E. Method of making styrene-type polymer

Mar. 8, 1988

4,730,027

 
Millington, James E. Method of making expandable styrene-type beads

Aug. 25, 1981

4,286,069

 
Millington, James E. Thermostable dielectric material

Apr. 25, 1967

3,316,178

 
Mitchell, Charles Lewis Device for aid in vocal culture

Jan. 1, 1884

291,071

 
Mitchell, James M. Check row corn planter

Jan. 16, 1900

641,462

 
Mitchell, James W. Method for growing continuous diamond films

Aug. 15, 1995

5,441,013

 
Montgomery, Jay H. Aeroplane aerofoil wing

May 23, 1933

1,910,626

 
Montgomery, Jay H. and Burton, Edward F. Food product and process of producing the same ( compound of honey and butter )

Dec. 11, 1928

1,694,680

 
Moody, William U. Design for a game board

May 11, 1897

D 27,046

 
Moore, Samuel Locomotive headlight

Feb. 14, 1928

1,659,328

 
Moore, Samuel Hobby horse

Mar. 19, 1929

1,705,991

 
Moore, Samuel Self-directing headlight

Nov. 30, 1926

1,608,903

 
Moore, Samuel Vehicle-headlight mechanism

Feb. 7, 1928

1,658,534

 
Moore, Samuel Fuel-valve lock for motor vehicles

June 25, 1935

2,006,027

 
Morehead, King Reel carrier

Oct. 6, 1896

568,916

 
Morgan, Garrett Augustus Traffic signal

Nov. 20, 1923

1,475,024

Morgan created the forerunner of modern traffic lights
Morgan, Garrett Augustus Breathing device

Oct. 13, 1914

1,113,675

Morgan used this device in 1916 to save workers trapped in a tunnel
Morris, Joel Morton Switching system charging arrangement

Aug. 29, 1972

3,688,047

 
Muckelroy, William L. Leadless microminiature inductance element with closed magnetic circuit

Sept. 21, 1972

3,691,497

 
Muckelroy, William L. Ceramic inductor

May 21, 1974

3,812,442

 
Mullen, Nathaniel John Asphalt paving vehicles

Apr. 29, 1975

3,880,542

 
Murdock, Wilbert Knee alignment monitoring apparatus

Sept. 2, 1986

4,608,998

 
Murray, George W. Reaper

June 5, 1894

520,892

 
Murray, George W. Combined cotton seed planter and fertilizer distributor

June 5, 1894

520,891

 
Murray, George W. Cultivator and marker

Apr. 10, 1894

517,961

 
Murray, George W. Planter

June 5, 1894

520,890

 
Murray, George W. Planter

June 5, 1894

520,887

 
Murray, George W. Fertilizer distributor

June 5, 1894

520,889

 
Murray, George W. Combined furrow opener and stalk-knocker

Apr. 10, 1894

517,960

 
Murray, George W. Cotton chopper

June 5, 1894

520,888

 
Murray, William Corn harvester

Feb. 1, 1870

99,463

 
Murray, William Attachment for bicycles

Jan. 27, 1891

445,452

 
Nance, Lee Game apparatus

Dec. 1, 1891

464,035

 
Nash, Henry H. Improvement in life-preserving stools

Oct. 5, 1875

168,519

 
Nauflett, George W. Process for the synthesis of 2-flouro-2, 2-dinitroethanol

Mar. 28, 1972

3,652,686

 
Neal, Lonnie G. Electromagnetic gyroscope float assembly

Nov. 4, 1969

3,475,975

 
Neal, Theophilus Ealey Automatic blow-off

Nov. 1, 1932

1,885,466

 
Neal, Theophilus Ealey Shower bath spray

Jan. 3, 1933

1,893,435

 
Neblett, Richard Flemon Gasoline composition

Oct. 11, 1960

2,955,928

 
Neblett, Richard Flemon Oil-soluble ashless dispersant-detergent-inhibitors

May 12, 1970

3,511,780

 
Neblett, Richard Flemon Motor fuel composition

Sept. 18, 1962

3,054,666

 
Newman, Lyda D. Brush

Nov. 15, 1898

614,335

 
Newson, Simeon Oil heater or cooker

May 22, 1894

520,188

 
Nickerson, William J. Piano attachment

June 27, 1899

627,739

 
Nokes, Clarence Lawn mower

Feb. 12, 1963

3,077,066

 
Nokes, Clarence Venetian blind restringer

June 3, 1958

2,836,882

 
O'Connor, John and Turner, Collatinus A. Steam gage

Aug. 25, 1896

566,613

 
O'Connor, John and Turner, Collatinus A. Alarm for water containing vessels

Feb. 8, 1898

598,572

 
O'Connor, John and Turner, Collatinus A. Alarm for boilers

Aug. 25, 1896

566,612

 
Outlaw, John W. Horseshoe

Nov. 15, 1898

614,273

 
Page, Lionel F. Auxiliary circulating device for automobile heaters

Aug. 22, 1939

2,170,032

 
Parker, Alice H. Heating furnace

Dec. 23, 1919

1,325,905

 
Parker, John Percial Portable screw-press

May 19, 1885

318,285

 
Parker, John Percial Follower-screw for tobacco presses

Sept. 2, 1884

304,552

 
Parsons, James A., Jr. Method of making silicon iron compounds

Aug. 18, 1931

1,819,479

 
Parsons, James A., Jr. Process for treating silicon alloy castings

Sept. 4, 1934

1,972,103

 
Parsons, James A., Jr. Corrosion-resisting ferrous alloy

May 7, 1940

2,200,208

 
Parsons, James A., Jr. Iron alloy

Sept. 17, 1929

1,728,360

 
Payne, Moses Horseshoe

Dec. 11, 1888

394,388

 
Pelham, Robert A. Pasting apparatus

Dec. 19, 1905

807,685

 
Perry, John, Jr. and Hunger, Herbert F. Biochemical fuel cell

Nov. 8, 1966

3,284,239

 
Perryman, Frank R. Caterers- tray table

Feb. 2, 1892

468,038

 
Peterson, Charles A. Power generating apparatus

July 9, 1968

3,391,903

 
Peterson, Henry Attachment for lawn mowers

Apr. 30, 1889

402,189

 
Phelps, William Henry Apparatus for washing vehicles

Mar. 23, 1897

579,242

 
Pickering, John F. Air ship

Feb. 20, 1900

643,975

 
Pickett, Henry Improvement in scaffolds

June 30, 1874

152,511

 
Pinn, Traverse B. File holder

Aug. 17, 1880

231,355

 
Polite, William D. Gun

Mar. 6, 1917

1,218,458

 
Polk, Austin J. Bicycle support

Apr. 14, 1896

558,103

 
Pope, Jessie T. Croquignole iron

Oct. 22, 1946

2,409,791

Pope patented this with the aid of Eleanor Roosevelt
Porter, James Hall Gas well sulfur removal by diffusion through polymeric membranes

Oct. 20, 1970

3,534,528

 
Prather, Alfred G. B. Gravity escape means

Feb. 6, 1973

3,715,011

 
Prince, Frank Rodger Production of 2-pyrrolidones

Jan. 25, 1972

3,637,743

 
Pugsley, Abraham Shutter worker

Aug. 5, 1890

433,819

 
Pugsley, Abraham Blind stop

July 29, 1890

433,306

 
Pugsley, Samuel Gate latch

Feb. 15, 1887

357,787

 
Purdy, John E. and Sadgwar, Daniel A. Folding chair

June 11, 1889

405,117

 
Purdy, Walter Device for sharpening edged tools

Aug. 16, 1898

609,367

 
Purdy, Walter Device for sharpening edged tools

Aug. 1, 1899

630,106

 
Purdy, Walter Device for sharpening edged tools

Oct. 27, 1896

570,337

 
Purdy, William H. and Peters, Leonard C. Design for a spoon

Apr. 23, 1895

D 24,228

 
Purvis, Willam B. Fountain pen

Jan. 7, 1890

419,065

 
Purvis, William B. Bag fastener

Apr. 25, 1882

256,856

 
Purvis, William B. Electrical railway system

Aug. 17, 1897

588,176

 
Purvis, William B. Paper bag machine

Feb. 12, 1884

293,353

 
Purvis, William B. Paper bag machine

Jan. 28, 1890

420,099

 
Purvis, William B. Hand stamp

Feb. 27, 1883

273,149

 
Purvis, William B. Electric railway

May 1, 1894

519,291

 
Purvis, William B. Magnetic car balancing device

May 21, 1895

539,542

 
Queen, William Guard for companion ways or hatches

Aug. 18, 1891

458,131

 
Ransom, Victor Llewellyn Method and apparatus for gathering peak load traffic data

Feb. 11, 1975

3,866,185

 
Ransom, Victor Llewellyn Traffic data processing system

Jan. 25, 1966

3,231,866

 
Ratchford, Debrilla M. Suitcase with wheels and transporting hook

June 13, 1978

4,094,391

 
Ray, Ernest P. Chair supporting device

Feb. 21, 1899

620,078

 
Ray, Lloyd P. Dust pan

Aug. 3, 1897

587,607

 
Reed, Judy W. Dough kneader and roller

Sept. 23, 1884

305,474

 
Reynolds, Humphrey H. Safety gate for bridges

Oct. 7, 1890

437,937

 
Reynolds, Humphrey H. Window ventilator for railway cars

Apr. 3, 1883

275,271

 
Reynolds, Mary Jane Hoisting and loading mechanism

April 20, 1920

1,337,667

 
Reynolds, Robert Randolph Nonrefillable bottle

May 2, 1899

624,092

 
Rhodes, Jerome Bonaparte Water closet

Dec. 19, 1899

639,290

 
Richardson, Albert C. Casket-lowering device

Nov. 13, 1894

529,311

 
Richardson, Albert C. Hame fastener

Mar. 14, 1882

255,022

 
Richardson, Albert C. Insect destroyer

Feb. 28, 1899

620,362

 
Richardson, Albert C. Churn

Feb. 17, 1891

446,470

 
Richardson, Albert C. Bottle

Dec. 12, 1899

638,811

 
Richardson, William H. Child's carriage

June 18, 1889

405,599

 
Richardson, William H. Cotton chopper

June 1, 1886

343,140

 
Richardson, William H. Child's carriage

June 18, 1889

405,600

 
Richey, Charles V. Fire escape bracket

Dec. 28, 1897

596,427

 
Richey, Charles V. Lockout for outgoing calls for telephone systems

July 7, 1931

1,812,984

 
Richey, Charles V. Railroad switch

Aug. 3, 1897

587,657

 
Richey, Charles V. Railroad switch

Oct. 26, 1897

592,448

 
Richey, Charles V. Combined cot, hammock, and stretcher

Dec. 13, 1898

615,907

 
Richey, Charles V. Time control system for telephones

Feb. 14, 1933

1,897,533

 
Richey, Charles V. Telephone register and lock-out device

June 3, 1913

1,063,599

 
Richey, Charles V. Car coupling

June 15, 1897

584,650

 
Rickman, Alvin Longo Overshoe

Feb. 8, 1898

598,816

 
Ricks, James Horseshoe

Mar. 30, 1886

338,781

 
Ricks, James Overshoe for horses

June 6, 1899

626,245

 
Rillieux, Norbert Improvement in sugar works

Aug. 26, 1843

3,237

Rillieux's inventions completely changed the sugar industry
Rillieux, Norbert Improvement in sugar making (evaporating pan)

Dec. 10, 1846

4,879

 
Roberts, Louis W. Gaseous discharge device

Jan. 8, 1963

3,072,865

 
Roberts, Louis W. Gallium-wetted movable electrode switch

Apr. 9, 1968

3,377,576

 
Roberts, Louis W. GASAR (Device for gas amplication by stimulated emission and radiation)

June 21, 1966

3,257,620

 
Robinson, Elbert R. Casting composite or other car wheels

Nov. 23, 1897

594,286

 
Robinson, Elbert R. Electric railway trolley

Sept. 19, 1893

505,370

 
Robinson, Hassel D. Design for a traffic signal casing

Feb. 24, 1925

D 66,703

 
Robinson, Hassel D. Traffic signal for automobiles

Apr. 13, 1926

1,580,218

 
Robinson, Ira C. Sustained release pharmaceutical tablets

May 4, 1971

3,577,514

 
Robinson, James H. Lifesaving guard for locomotives

Mar. 14, 1899

621,143

 
Robinson, James H. Lifesaving guard for street cars

Apr. 25, 1899

623,929

 
Robinson, John Dinner pail

Feb. 1, 1887

356,852

 
Robinson, Neal Moore Vehicle wheel

July 11, 1922

1,422,479

 
Romain, Arnold Passenger register

Apr. 23, 1889

402,035

 
Rose, Raymond E. Control apparatus

Nov. 9, 1971

3,618,388

 
Ross, Archia L. Runner for stoops

Aug. 4, 1896

565,301

 
Ross, Archia L. Bag closure

June 7, 1898

605,343

 
Ross, Archia L. Trousers support or stretcher

Nov. 28, 1899

638,068

 
Ross, Joseph Hay press

Sept. 5, 1899

632,539

 
Roston, David N. Feather curler

Mar. 10, 1896

556,166

 
Russell, Edwin R. Ion exchange adsorption process for plutonium separation

July 11, 1961

2,992,249

 
Russell, Edwin R. Removal of cesium from aqueous solution by ion exchange

Jan. 3, 1967

3,296,123

 
Russell, Edwin R. Thorium oxide or thorium-uranium oxide with magnesium oxide

Mar. 14, 1967

3,309,323

 
Russell, Edwin R. The separation of plutonium from uranium and fission products

Oct. 7, 1958

2,855,269

 
Russell, Jesse Eugene Network server platform for Internet, Java server and video application server

Mar. 28, 2000

6,044,403

 
Russell, Jesse Eugene Broadband data reception system for Worldnet access

July 27, 1999

5,930,247

 
Russell, Joseph L. Preparation of tungsten hexafluoride from halogen and hydrogen fluoride

Nov. 30, 1976

3,995,011

 
Russell, Lewis A. Guard attachment for beds

Aug. 13, 1895

544,381

 
Ryder, Earl High silicon cast iron

Apr. 14, 1964

3,129,095

 
Sammons, Walter H. Comb

Dec. 21, 1920

1,362,823

 
Samms, Adolphus Emergency release for extraction chute

June 21, 1966

3,257,089

 
Samms, Adolphus Multiple stage rocket

Aug. 10, 1965

3,199,455

 
Samms, Adolphus Rocket motor fuel feed

Mar. 28, 1967

3,310,938

 
Samms, Adolphus Rocket engine pump feed system

Sept. 19, 1961

3,000,179

 
Sampson, George T. Sled propeller

Feb. 17, 1885

312,388

 
Sampson, George T. Clothes drier

June 7, 1892

476,416

 
Sampson, Henry Thomas Gamma electric cell

July 6, 1971

3,591,860

 
Sampson, Henry Thomas Binder system for propellants and explosives

July 7, 1964

3,140,210

 
Sampson, Henry Thomas Case bonding system for cast composite propellants

Oct. 19, 1965

3,212,256

 
Sanderson, Dewey S. C. Urinalysis machine

July 28, 1970

3,522,011

 
Sanderson, Ralph W. Hydraulic shock absorber

Jan. 9, 1968

3,362,742

 
Saxton, Richard L. Pay telephone with sanitized tissue dispenser

July 5, 1983

4,392,028

 
Scharschmidt, Virginia Safety window cleaning device

Apr. 9, 1929

1,708,594

 
Scott, Henry Spinal traction and support unit used while seated

Nov. 21, 1989

4,881,528

 
Scott, Howard L. Treating human, animal and synthetic hair with a waterproofing composition

Mar. 9, 1971

3,568,685

 
Scott, J. C. Shadow box

Oct. 1, 1968

D 212,334

 
Scott, Linzy Knee brace

June 30, 1981

4,275,716

 
Scott, Robert P. Corn silker

Aug. 7, 1894

524,223

 
Scottron, Samuel R. Pole tip

Sept. 21, 1886

349,525

 
Scottron, Samuel R. Curtain rod

Aug. 30, 1892

481,720

 
Scottron, Samuel R. Cornice

Jan. 16, 1883

270,851

 
Scottron, Samuel R. Adjustable window cornice

Feb. 17, 1880

224,732

 
Scottron, Samuel R. Supporting bracket

Sept. 12, 1893

505,008

 
Shaw, Earl D. Free-electron amplifier device with electromagnetic radiation delay element

July 16, 1985

4,529,942

 
Shorter, Dennis W. Feed rack

May 17, 1887

363,089

 
Sigur, Wanda A. Method of fabricating composite structures

Jan. 28, 1992

5,084,219

 
Silvera, Esteban Ram-valve level indicator

Feb. 27, 1973

3,718,157

 
Skanks, Stephen Chambers Sleeping car berth register

July 27, 1897

587,165

 
Small, Isadore Universal on-delay timer

June 4, 1974

3,814,948

 
Smartt, Brinay Valve gear

Sept. 28, 1909

935,169

 
Smartt, Brinay Reversing-valve

Sept. 12, 1905

799,498

 
Smartt, Brinay Wheel

Feb. 4, 1913

1,052,290

 
Smith, Bernard Method or preparing nonlaminating anisotropic boron nitride

Oct. 1, 1985

4,544,535

 
Smith, John Winsor Game

Apr. 17, 1900

647,887

 
Smith, Jonathan S. Transparent zirconia composition and process for making same

Mar. 11, 1969

3,432,314

 
Smith, Joseph H. Lawn sprinkler

Mar. 22, 1898

601,065

 
Smith, Joseph H.. Lawn sprinkler

May 4, 1897

581,785

 
Smith, Mildred E. Family relationships card game

Oct. 28, 1980

4,230,321

 
Smith, Morris L. Printing fluid comprising an aqueous solution of a water-soluble dye and a thermosetting vinylsulfonium polymer

June 18, 1968

3,389,108

 
Smith, Morris L. Chemically treated paper products - towel and tissue

Nov. 21, 1989

4,882,221

 
Smith, Morris L. Chemically treated paper products - towel and tissue

Nov. 28, 1989

4,883,475

 
Smith, Peter D. Potato digger

Jan. 27, 1891

445,206

 
Smith, Peter D. Grain binder

Feb. 23, 1892

469,279

 
Smith, Robert T. Spraying machine

Aug. 21,1934

1,970,984

 
Smith, Samuel C. Hardness tester

May 18, 1976

3,956,925

 
Smoot, Lanny S. Teleconferencing facility with high resolution video display

Dec. 26, 1989

4,890,314

 
Smoot, Lanny S. Optical receiver circuit with active equalizer

Jan. 21, 1986

4,565,974

 
Smoot, Lanny S. Teleconferencing terminal with camera behind display screen

May 22, 1990

4,928,301

 
Snow , William and Johns, James A. Liniment

Oct. 7, 1890

437,728

 
Spears, Harde Improvement in portable shields for infantry and artillery

Dec. 27, 1870

110,599

 
Spikes, Richard B. Automatic safety brake system

Jan. 2, 1962

3,015,522

 
Spikes, Richard B. Transmission and shifting means therefor

Nov. 28, 1933

1,936,996

 
Spikes, Richard B. Automatic gear shift

Dec. 6, 1932

1,889,814

 
Spikes, Richard B. Method and apparatus for obtaining average samples and temperature of tank liquids

Oct. 27, 1931

1,828,753

 
Spikes, Richard B. Billiard rack

Oct. 11, 1910

972,277

 
Spikes, Richard Bowie Combination milk bottle opener and cover

June 29, 1926

1,590,557

 
Stafford, Osbourne C. Microwave phase shift device

Aug. 4, 1970

3,522,558

 
Stallworth, Elbert Electric chamber

Sept. 10, 1929

1,727,842

 
Stallworth, Elbert Alarm clock electric switch

Sept. 4, 1934

1,972,634

 
Stallworth, Elbert Electric heater

Oct. 16, 1928

1,687,521

 
Stanard, John Oil stove

Oct. 29, 1889

413,689

 
Stanard, John Refrigerator

July 14, 1891

455,891

 
Stancell, Arnold F. Separating fluids with selective membranes

Apr. 18, 1972

3,657,113

 
Stephens, George B. D. Cigarette holder and ash tray

Sept. 11, 1956

2,762,377

 
Stewart , Thomas Metal bending machine

Dec. 27, 1887

375,512

 
Stewart, Albert Clifton Electric cell

June 7, 1966

3,255,045

 
Stewart, Albert Clifton Redox couple radiation cell

June 7, 1966

3,255,044

 
Stewart, Earl M. and Shagrin, Seymour Arch and heel support

Feb. 18, 1936

2,031,510

 
Stewart, Enos W. Punching machine

May 3, 1887

362,190

 
Stewart, Enos W. Machine for forming vehicle seat bars

Nov. 22, 1887

373,698

 
Stewart, Marvin Charles System for interconnecting electrical components

Sept. 14, 1971

3,605,063

 
Stewart, Marvin Charles Arithmetic unit for digital computers

July 30, 1968

3,395,271

 
Stewart, Thomas W. Mop

June 13, 1893

499,402

 
Stewart, Thomas W. Station indicator

June 20, 1893

499,895

 
Stilwell, Henry F. Means for receiving mail and other matter on aeroplanes while in motion

May 30, 1933

1,911,248

 
Stokes, Rufus Air pollution control device

July 14, 1970

3,520,113

 
Stokes, Rufus Exhaust purifier

Apr. 16, 1968

3,378,241

 
Sutton, Edward H. Improvement in cotton cultivators

Apr. 7, 1874

149,543

 
Sweeting, James A. Device for rolling cigarettes

Nov. 30, 1897

594,501

 
Sweeting, James A. Combined knife and scoop

June 7, 1898

605,209

 
Tankins, Sacramenta G. Comb

May 11, 1920

1,339,632

 
Tankins, Sacramenta G. Method and means for treating human hair

Feb. 16, 1932

1,845,208

 
Tate, Charles W. Flexible and transparent lubricant housing for universal joint

Jan. 28, 1969

3,423,959

 
Taylor, Asa J. Machine for assembling and/or disassembling the parts of spring tensioned devices

June 16, 1942

2,286,695

 
Taylor, Asa J. Fluid joint

Jan. 13, 1948

2,434,629

 
Taylor, Benjamin H. Slide valve

July 6, 1897

585,798

 
Taylor, Benjamin H. Improvement in rotary engines

Apr. 23, 1878

202,888

 
Taylor, Christopher L. Combination toothbrush and dentifrice dispenser

Oct. 1, 1957

2,807,818

 
Taylor, Moddie Daniel Ion exchange adsorption process for plutonium separation

July 11, 1961

2,992,249

 
Taylor, Moddie Daniel Preparation of anhydrous alkaline earth halides

Aug. 6, 1957

2,801,899

 
Taylor, Moddie Daniel Preparation of anhydrous lithium salts

Aug. 14, 1962

3,049,406

 
Taylor, Richard Leaf holder

June 22, 1937

D 105, 037

 
Thomas, Edward H. C. Automobile key and license holder

Nov. 27, 1928

1,693,006

 
Thomas, S. E. Pipe connection

Oct. 9, 1888

390,821

 
Thomas, S. E. Process of casting

July 31, 1888

386,941

 
Thomas, Samuel E. Waste trap

Oct. 16, 1883

286,746

 
Thomas, Samuel E. Waste trap for basins, closets, etc.

Oct. 4, 1887

371,107

 
Thomas, Valerie L. Illusion transmitter

Oct. 21, 1980

4,229,761

 
Thompson, John P. Motor vehicle elevating and parking device

July 6, 1937

2,086,142

 
Thompson, Joseph Ausbon Foot warmer

May 25, 1948

2,442,026

 
Thompson, Joseph Ausbon Moist/dry lavatory and toilet tissue

Nov. 25, 1975

3,921,802

 
Thompson, Oliver L. Vehicle parking attachment

June 9, 1925

1,541,670

 
Thornton, Benjamin F. Apparatus for automatically transmitting messages over a telephone line

Feb. 2, 1932

1,843,849

 
Thornton, Benjamin F. Apparatus for automatically recording telephonic messages

Nov. 10, 1931

1,831,331

 
Toland, Mary Float-operated circuit-closer

May 4, 1920

1,339,239

 
Toliver, George Propeller for vessels

Apr. 28, 1891

451,086

 
Toomey, Richard E. S. and Evans, James C. Airplane appliance to prevent ice formation

Mar. 11, 1930

1,749,858

 
Turner, Allen H. Electrostatic paint system

Jan. 16, 1962

3,017,115

 
Turner, Allen H. Electrostatic painting

Sept. 18, 1962

3,054,697

 
Turner, John R. Method and apparatus for polishing glass and like substances

July 10, 1945

2,380,275

 
Turner, Madeline M. Fruit press

Apr. 25, 1916

1,180,959

 
Vincent, Simon Woodworking machine

Dec. 7, 1920

1,361,295

 
Wade, William L. Method of making a porous carbon cathode, a porous carborn cathode so made, and electrochemical cell including the porous carbon cathode

Apr. 30, 1985

4,514,478

 
Walker, M. Lucius, Jr. Laminar fluid NOR element

Nov. 18, 1969

3,478,764

 
Walker, Peter Machine for cleaning seed cotton

Feb. 16, 1897

577,153

 
Walker, Peter Bait holder

Mar. 8, 1898

600,241

 
Waller, Joseph W. Shoemaker-s cabinet or bench

Feb. 3, 1880

224,253

 
Walton, Ulysses S. Denture

Mar. 23, 1943

2,314,674

 
Warren, Richard Display rack

Mar. 8, 1927

1,619,900

 
Washington, Wade Corn husking machine

Aug. 14, 1883

283,173

 
Watkins, Isaac Scrubbing frame

Oct. 7, 1890

437,849

 
Watts, Julius R. Bracket for miners' lamps

Mar. 7, 1893

493,137

 
Watts, Julius R. Drill for boring and reaming

May 5, 1891

451,789

 
Weatherby, Dennis W. Automatic dishwasher detergent composition

Dec. 22, 1987

4,714,562

 
Weaver, Rufus J. Stairclimbing wheelchair

Nov. 19, 1968

3,411,598

 
Webb, Henry C. Clearing plow

May 15, 1917

1,226,425

 
Webster, John W. Method and apparatus for visually comparing files in a data processing system

Aug. 25, 1992

5,142,619

 
Weir, Charles E. High-pressure optical cell

Feb. 26, 1963

3,079,505

 
West, Edward H. Weather shield

Sept. 5, 1899

632,385

 
West, James Edward Noise reduction processing arrangement for microphone arrays

Jan. 31, 1989

4,802,227

 
West, James Edward Technique for removing surface and volume charges from thin high polymer films

Feb. 3, 1981

4,248,808

 
West, James Edward Technique for fabrication of foil electret

Mar. 23, 1976

3,945,112

 
West, John W. Improvement in wagons

Oct. 18, 1870

108,419

 
Wharton, Ferdinand D. Treatment of diarrhea employing certain basic polyelectrolyte polymers

Apr. 11, 1972

3,655,869

 
White, Charles Fred Timing device

Feb. 27, 1912

1,018,799

 
White, Daniel L. Extension step for cars

Jan. 12, 1897

574,969

 
White, John T. Lemon squeezer

Dec. 8, 1896

572,849

 
Wicks, Jerome L. Patio door and window guard system invention

Apr. 20, 1982

4,325,203

 
Wiles, Joseph S. Injection pistol

Nov. 10, 1970

3,538,916

 
Williams, Carter Canopy frame

Feb. 2, 1892

468,280

 
Williams, James P. Pillow sham holder

Oct. 10, 1899

634,784

 
Williams, Paul E. Helicopter

Nov. 27, 1962

3,065,933

 
Williams, Philip B. Electrically controlled and operated railway-switch

Jan. 15, 1901

666,080

 
Williams, Robert M. Method and apparatus for disinfecting objects

Dec. 15, 1992

5,171,523

 
Winn, Frank Direct acting steam engine

Dec. 4, 1888

394,047

 
Winters, Joseph R. Improvement in fire escape ladders

Apr. 8, 1879

214,224

 
Winters, Joseph R. Fire escape ladder

May 7, 1878

203,517

 
Wood, Francis J. Potato digger

Apr. 23, 1895

537,953

 
Woodard, Dudley G. Preparation of water soluble acrylic copolymers for use in water treatment

Apr. 6, 1971

3,574,175

 
Woods, Granville T. Telephone transmitter

Dec. 2, 1884

308,817

 
Woods, Granville T. Galvanic battery

Aug. 14, 1888

387,839

 
Woods, Granville T. Amusement apparatus

Dec. 19, 1899

639,692

 
Woods, Granville T. Electromagnetic brake apparatus

Oct. 18, 1887

371,655

 
Woods, Granville T. Railway telegraphy

Nov. 15, 1887

373,383

 
Woods, Granville T. Railway telegraphy

Aug. 28, 1888

388,803

 
Woods, Granville T. Telephone system and apparatus

Oct. 11, 1887

371,241

 
Woods, Granville T. Polarized relay

July 5, 1887

366,192

 
Woods, Granville T. Electromechanical brake

Aug. 16,1887

368,265

 
Woods, Granville T. Steam boiler furnace

June 3, 1884

299,894

 
Woods, Granville T. Method of controlling electric motors or other electrical translating devices

Jan. 7, 1902

690,808

 
Woods, Granville T. Method of controlling electric motors or other electrical translating devices

Jan. 7, 1902

690, 807

 
Woods, Granville T. System of electrical distribution

Aug. 1, 1899

630,280

 
Woods, Granville T. Electromotive railway

June 26, 1888

385,034

 
Woods, Granville T. Safety apparatus for railways

Nov. 27, 1906

837,022

 
Woods, Granville T. Electric railway

Jan. 29, 1901

667,110

 
Woods, Granville T. Vehicle-controlling apparatus

Sept. 24, 1907

867,180

 
Woods, Granville T. Motor controlling apparatus

Apr. 15, 1902

697,928

 
Woods, Granville T. Safety apparatus for railways

Oct. 16, 1906

833,193

 
Woods, Granville T. Electric railway

Mar. 25, 1902

695,988

 
Woods, Granville T. Regulating and controlling electrical translating devices

Sept. 3, 1901

681,768

 
Woods, Granville T. Electric railway conduit

Nov. 21, 1893

509,065

 
Woods, Granville T. Electric railway supply system

Oct. 31, 1893

507,606

 
Woods, Granville T. Incubator

Aug. 28, 1900

656,760

 
Woods, Granville T. Apparatus for transmissions of messages by electricity

Apr. 7, 1885

315,368

 
Woods, Granville T. Automatic safety cut-out for electric circuits

Jan. 1, 1889

395,533

 
Woods, Granville T. Apparatus for controlling electric motors or other electrical translating devices

Jan. 7, 1902

690,809

 
Woods, Granville T. Induction telegraph system

Nov. 29, 1887

373,915

 
Woods, Granville T. Tunnel construction for electric railways

July 17, 1888

386,282

 
Woods, Granville T. Relay instrument

June 7, 1887

364,619

 
Woods, Granville T. Electric railway

Nov. 19, 1901

687,098

 
Woods, Granville T. System of electrical distribution

Oct. 13, 1896

569,443

 
Woods, Granville T. System of electrical control

Apr. 15, 1902

697,767

 
Woods, Granville T. Automatic safety cut-out for electric circuits

Oct. 14, 1890

438,590

 
Woods, Granville T. Electric railway system

Nov. 10, 1891

463,020

 
Woods, Granville T. Overhead conducting system for electric railways

May 29, 1888

383,844

 
Woods, Granville T. Electric-railway apparatus

June 14, 1904

762,792

 
Woods, Granville T. Electric railway system

Jan. 13, 1903

718,183

 
Woods, Granville T. Automatic air brake

June 10, 1902

701,981

 
Woods, Granville T. Electric railway system

July 9, 1901

678,086

 
Woods, Granville T. Automatic circuit-breaking apparatus

Nov. 20, 1900

662,049

 
Woods, Granville T. Apparatus for controlling electric motors or other electrical translating devices

Jan. 7, 1902

690,810

 
Woods, Granville T. and Woods, Lyates Railway-brake apparatus

Mar. 29, 1904

755,825

 
Woods, Granville T. and Woods, Lyates Railway-brake apparatus

July 18, 1905

795,243

 
Woods, Granville T. and Woods, Lyates Electric railway

May 26, 1903

729,481

 
Wormley, James Lifesaving apparatus

May 24, 1881

242,091

 
Young, James E. Battery performance control

Jan. 14, 1986

4,564,798

 
 


Black Inventors in the USA

by Rit Nosotro

Change Over Time essay

How has the status of the black inventor in America evolved from the slave era up until today?
Note:For an extensive database of African-American Inventors, see: www.negroartist.com


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Thesis:

Summary:


Black inventors of the 19th century, generally invented devices that seem, at a glance, to merely fulfill an immediate need or improve on a simple task. Henry Blair, for example, patented the corn planter in 1834 and the cotton planter in 1836; both of these inventions were created to make a dreary task easier. A. P. Ashbourne patented the biscuit cutter in 1875, W.C. Carter patented the umbrella stand in 1885, and W.B. Purvis patented the fountain pen in 1890 (Butler). All of these inventions, though useful, were not the type to receive widespread acknowledgement or fame.

Although African Americans often invented time-saving tools out of necessity, a closer look exposes many free blacks who simply possessed the skills and aptitude necessary to create unique devices and who went above and beyond the creation of simpler devices. For instance, Thomas Jennings (1791-1859), a free black store owner, was the first African American to receive a patent. He invented a process for cleaning clothes, which helped him in his dry cleaning business and, in turn, allowed him to buy his family out of slavery. In addition, Elijah McCoy invented a “lubricating cup”, patented in 1872, which simplified the process of oiling a train’s engine and saved time and labor. This invention proved invaluable to the railroad, and although many imitations were created, savvy businessmen requested only McCoy’s lubricator, from which we get the popular phrase “The Real McCoy”. Lastly, Norbert Rillieux (1800-1894) impacted the entire sugar industry with his discovery of a process for refining sugar that cut down on labor and cost and produced a fine, white sugar (Black Inventors).

As the dire need for inventions dwindled and imaginative creators strove to create improvements instead, a struggle began that affected black inventors. Granville T. Woods (1856-?), known as The Black Edison, is a prime example of the struggles a black inventor faced during the 19th century. Woods invented such items as the chicken egg incubator, automatic air brakes, and various improvements on railways, such as the steam boiler furnace. More significant, however, was his struggle as a black inventor who faced the opposition of like-minded white inventors, specifically Alexander Graham Bell and Thomas Edison. Woods invented what he called the “telegraphony”, a type of telephone transmitter, but due to lack of funds he was forced to sell his invention to the Bell Telephone Company. Another conflict ensued when Edison sued Woods, claiming that he was not the true inventor of the multiplex telegraph. Although Woods eventually won the lawsuit, he felt that his inventions were less accepted than those of white inventors (Belis, Black Inventors).

Throughout time African Americans rose from the opposition of others and continued inventing many wonderful things. No longer hindered by whites or confined to small inventions, modern day black inventors have significantly contributed to the lives of others through their hard work and research. Dr. Patricia Bath, for instance, patented the Laserphaco Probe, a laser device for the eye, in 1988; this machine aids in the removal of cataracts, providing more precision and less harm to the eye. In addition, Mark Dean created a device called the ISA systems bus in 1984, which allows a personal computer to have several machines connected to it at once, such as a printer and scanner or modem. ISA is widely used today and Dean also received the Black Engineer of the Year President’s Award in 1997 for his contribution (Modern Black Inventors). Inventions such as these clearly demonstrate the impact of black inventors in society as a whole; other objects such as the air conditioning unit, cell phone, dryer, elevator, motor, traffic light and many others were invented by black men and women (Black Inventors and Inventions).

Black inventors have certainly faced their share of trials through the centuries, but indeed they have overcome and proved themselves competent over and over. In this day and age, blacks still receive specialized awards for proving that they can achieve much, but really they are no different than any other inventors.


Quick Quiz:

1. Who invented automatic air brakes?
a) Thomas Edison
b) Granville Woods
c) St. Nicholas
d) Elijah McCoy
e) Patricia Guth

2. What type of business did Thomas Jennings own?
a) Smithy
b) Cooper
c) Launderer
d) Printer
e) Internet service provider

3. What did the Laserphaco Probe remove?
a) Unwanted hair
b) Tattoos
c) Excess fat
d) Ear wax
e) Cataracts

4. Mark Dean received the President’s Award for inventing what?
a) ASL
b) CIA
c) ISA
d) TMI
e) PDA

answers: 1. B, 2. C, 3. E, 4. C


Belis, Mary. “Granville T. Woods”. Inventors. 2004. About.com. 27 March 2004.
http://inventors.about.com/library/inventors/blwoods.htm

“Black Inventors”. 2002 Know Your Black History.com 27 March 2004.
http://www.knowyourblackhistory.com/black-inventors.html>.

“Black Inventors and Inventions”. University of Kentucky. 27 March 2004.
http://www.uky.edu/StudentOrgs/AWARE/archives/invent.html

Butler, C. and Charles Isabell. “These Events In Black History”. 5 March 1994. MIT
Artificial Intelligence Laboratory. 27 March 2004.
http://www.ai.mit.edu/~isbell/HFh/black/events_and_people/009.aa_inventions.

“Modern Black Inventors”. 1998 Ebony. 27 March 2004.
http://www.findarticles.com/cf_dls/m1077/n12_v53/21225425/p1/article.jhtml


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