Black History Month - African American Inventors

Patent Holders List Index L

Lewis Latimer — Wikimedia Commons/Public Domain

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Updated on October 14, 2019

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 magnetoresistive 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

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

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Your Citation

Bellis, Mary. "Black History Month - African American Inventors." ThoughtCo, Feb. 7, 2021, thoughtco.com/black-history-month-african-american-inventors-1992083. Bellis, Mary. (2021, February 7). Black History Month - African American Inventors. Retrieved from https://www.thoughtco.com/black-history-month-african-american-inventors-1992083 Bellis, Mary. "Black History Month - African American Inventors." ThoughtCo. https://www.thoughtco.com/black-history-month-african-american-inventors-1992083 (accessed June 2, 2023).