INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008
Compiled by Margaret J. Collins
Library Program Specialist
Patent and Trademark Depository Library
Illinois State Library
AL
Joseph C. Bagley Apr. 10, 1923 1,451,195 Combined
Shovel, Torch and Match Holder
Joseph C. Bagley Nov. 11, 1941 2,262,130 Wall Tie
Joseph C. Bagley Feb. 6, 1951 2,540,857 Nut Pick Up Device
Andrew J. Beard Apr. 26, 1881 240,642 Double Plow
Andrew J. Beard Aug. 10, 1886 347,220 Plow or Cultivator
Andrew J. Beard Nov. 3, 1891 462,614 Rotary Engine
Andrew J. Beard July 5, 1892 478,271 Rotary Engine
Andrew J. Beard Nov. 23, 1897 594,059 Car Coupling
Andrew J. Beard May 28, 1901 675,346 Automatic Car Coupling
Andrew J. Beard May 31, 1904 761,056 Automatic Car Coupling
Andrew J. Beard Dec. 19, 1905 807,430 Automatic Car Coupling
Robert L. Campbell May 19, 1903 728,364 Valve Gear for Steam Engines
George W. Carver Jan. 6, 1925 1,522,176 Cosmetics and Process of Producing
George W. Carver June 5, 1925 1,541,478 Paint and Stain and Process for Producing Same
George W. Carver June 14, 1927 1,632,365 Process of Producing Paints and Stains
James Crocker April 25, 1911 990,231 Air Compressor
Walter A. Hill Aug. 29, 1989 4,860,490 Movable Root Contact-Pressure Plate Assembly for Hydroponic System
Walter A. Hill June 8, 1993 5,216,836 Movable Root Contact/Pressure Plate Assembly for Hydroponic System
Lonnie G. Johnson* Mar. 6, 1979 4,143,267 Digital Distance Measuring Instrument
Lonnie G. Johnson* Jan. 1, 1980 4,181,843 Variable Resistance Type Sensor Controlled Switch
Lonnie G. Johnson* Mar. 3, 1981 4,253,606 Automatic Sprinkler Control
Lonnie G. Johnson* May 27, 1986 4,591,071 Squirt Gun
Lonnie G. Johnson* Feb. 16, 1988 4,724,683 Johnson tube, a thermodynamic heat pump
Lonnie G. Johnson* July 19, 1988 4,757,946 Flow Actuated Pulsator
Powell Johnson Nov. 2, 1880 234,039 Eye Protector
Portia L. Trenholm Mar. 2, 1948 D148,894 Design for an Earring Rack
Portia L. Trenholm Mar. 2, 1948 D148,894 Design for an Earring Rack
Truman C. Tucker Oct. 31, 1933 1,933,517 Combined Water Cooler and Support Therefor
Booker T. Washington May 19, 1903 728,364 Valve-Gear for Steam-Engines
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