Black History Month - African American Inventors, L

Black History Month - African American Inventors, L Black history inventors are listed alphabetically. Each listing has the name of the black inventor followed by the patent number(s) which is the unique number assigned to an invention when a patent is issued, the date the patent was issued, and a description of the invention as written by the inventor. If available, links are provided to in-depth articles, biographies, illustrations and photos on each individual inventor or patent.   Lewis Howard Latimer #147,363, 2/10/1874, Water closets for railway cars (co-inventor Charles W.Brown)#247,097, 9/13/1881, Electric lamp, (co-inventor Joseph V. Nichols)​#252,386, 1/17/1882, Process of manufacturing carbons#255,212, 3/21/1882, Globe supporter for electric lamps (co-inventor John Tregoning)#334,078, 1/12/1886, Apparatus for cooling and disinfecting#557,076, 3/24/1896, Locking rack for hats, coats, and umbrellas#781,890, 2/7/1905, Book supporter#968,787, 8/30/1910, Lamp fixture William A Lavalette #208,184, 9/17/1878, Improvement in printing presses#208,208, 9/17/1878, Variation of printing press Arthur Lee #2,065,337, 12/22/1936, Self propelled toy fish Henry Lee #61,941, 2/12/1867, Improvements in animal traps Joseph Lee #524,042, 8/7/1894, Kneading machine#540,553, 6/4/1895, Bread crumbing machine Lester A Lee #4,011,116, 3/8/1977, Carbon dioxide laser fuels Maurice William Lee #2,906,191, 9/29/1959, Aromatic pressure cooker and smoker Robert Lee #2,132,304, 10/4/1938, Safety attachment for automotive vehicles Herbert Leonard #3,119,657, 1/28/1964, Production of hydroxylamine hydrochloride#3,586,740, 6/22/1971, High impact polystyrene Frank W Leslie #590,325 9/21/1897 Envelope seal Francis Edward LeVert #4,091,288, 5/23/1978, Threshold self-powered gamma detector for use as a monitor of power in a nuclear reactor#4,722,610, 2/2/1988, Monitor for deposition on heat transfer surfaces#4,805,454, 2/21/1989, Continuous fluid level detector#4,765,943, Thermal neutron detectors and system using the same#4,316,180, Directional detector of changes in a local electrostatic field#4,280,684, Manual automobile pusher#4,277,727, Digital room light controller#4,259,575, Directional gamma detector#4,218,043, Manual automobile pusher#4,136,282, Directional detector of gamma rays#5,711,324, Hair drying curler apparatus#5,541,464, Thermionic generator#5,443,108, Upwardly deployed privacy blind#5,299,367, Hair drying curler apparatus#5,256,878, Self powered detector based monitor for radiographic cameras#6,886,274, Spring cushioned shoe#6,865,824, Fluid flow system for spring-cushioned shoe#6,665,957, Fluid flow system for spring-cushioned shoe#6,583,617, Barkhausen noise measurement probe with magneto resistive sensor and cylindrical magnetic shield #6,442,779, Portable feet elevator#6,353,656, Radioisotope based x-ray residual stress analysis apparatus#6,282,814, Spring cushioned shoe#6,240,967, Sleeve assembly for protecting conducting wires against damage by cutting implements#7,159,338, Fluid flow system for spring-cushioned shoe K Latimer to LeVert, Lewis to Lu Valle M Anthony L Lewis #483,359, 9/27/1892, Window cleaner Edward R Lewis #362,096, 5/3/1887, Spring gun James Earl Lewis #3,388,399, 6/11/1968, Antenna feed for two coordinate tracking radars Henry Linden #459,365, 9/8/1891, Piano truck Ellis Little #254,666, 3/7/1882, Bridle-bit Emanuel L Logan Jr #3,592,497, 7/13/1971, Door bar latch Amos E Long #610,715, 9/13/1898, Cap for bottle and jars (co-inventor Albert A Jones) Frederick J Loudin #510,432, 12/12/1893, Fastener for the meeting rails of sashes#512,308, 1/9/1894, Key fastener John Lee Love #542,419, 7/9/1895, Plasterers hawk#594,114, 11/23/1897, Pencil sharpener Henry R Lovell #D 87,753, 9/13/1932, Design for a doorcheck William E Lovett #3,054,666, 9/18/1962, Motor fuel composition James E Lu Valle #3,219,445, 11/23/1965, Photographic processes#3,219,448, 11/23/1965, Photographic medium and methods of preparing same#3,219,451, 11/23/1965, Sensitizing photographic media Continue black history database M