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Electrical Engineering · Innovation · Patents · Transportation
Granville T. Woods, an African-American electrical engineer, pioneered critical advancements in transportation and communication, securing nearly 60 patents and successfully defending his intellectual property against claims from Thomas Edison and others.
Born in 1856, Woods overcame limited formal education and racial barriers, self-educating in electricity and mechanics. His most notable invention, the induction telegraph (also known as the multiplex telegraph), significantly improved communication between trains and railroad stations, enhancing safety and efficiency.
The Bell Company purchased his earlier "telegraphony" invention, enabling Woods to become a full-time inventor. Woods also developed the third rail system, still widely used today, along with a railway signaling system, an improved electric trolley, and an automatic air brake.
General Electric and the Westinghouse Air Brake Company bought many of his patents. Despite facing numerous legal battles and patent denials due to his race, Woods proved the originality of his work, ultimately receiving nearly 60 patents.
He founded the Woods Electric Company and served as a vital mentor for aspiring black engineers.
