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Granville Tailer Woods (April 23, 1856 – January 30, 1910) was an American inventor who held more than 50 patents in the United States. [1] He was the first African American mechanical and electrical engineer after the Civil War. [2]
This list of African-American inventors and scientists documents many of the African-Americans who have invented a multitude of items or made discoveries in the course of their lives. These have ranged from practical everyday devices to applications and scientific discoveries in diverse fields, including physics, biology, math, and medicine.
William B. Purvis (12 August 1838 – 10 August 1914) [1] was an African-American inventor and businessman who received multiple patents in the late 19th-century. His inventions included improvements on paper bags, an updated fountain pen design, improvement to the hand stamp, and a close-conduit electric railway system.
The Hungarian engineer Dénes Mihály patented an image scanning with line deflection, in which each point of an image is scanned ten times per second by a selenium cell. August Karolus (1893–1972) invents the Kerr cell, an almost inertia-free conversion of electrical pulses into light signals. He was granted a patent for his method of ...
Phillip Bell Downig (March 22, 1857- June 8 1934) was an African-American inventor from Providence, Rhode Island. He is known for his most significant invention, the operating street railway switch. This allowed the switches to be opened or closed by using a brass arm located next to the brake handle on the platform of the car.
Otis Boykin was born on August 29, 1920, in Dallas, Texas. [2] [3] His father, Walter B. Boykin, was a carpenter, and later became a preacher.His mother, Sarah, was a maid, who died of heart failure when Otis was a year old.
Henry Thomas Sampson Jr. (April 22, 1934 – June 4, 2015) was an American engineer, inventor and film historian [1] who created the gamma-electric cell in 1972 — a device with the main goal of generating auxiliary power from the shielding of a nuclear reactor.
David N. Crosthwait Jr. (May 27, 1898 – February 25, 1976) was an African-American mechanical and electrical engineer, inventor, and writer.Crosthwait's expertise was on air ventilation, central air conditioning, and heat transfer systems.