
Oddlet: Granville Woods Β· 1 min read
Jul 21, 2026
No to Edison
What do you do when the man who twice tried to take your patent in court turns around and offers you a job?
Granville Woods left school around the age of ten. By 1887 he had patented the Synchronous Multiplex Railway Telegraph, a device that let moving trains talk to stations and to each other so they would stop crashing into one another. The American Catholic Tribune called him the greatest electrician in the world.
Thomas Edison disagreed, and sued him for the patent. Woods won. Edison sued him again, on a related claim. Woods won that one too.
At which point Edison, who had a sense of when a fight was over, offered Woods a position at the Edison Electric Light Company. A self-taught Black man, in the country he was living in, was offered a permanent salaried chair inside the most powerful electrical concern on earth, by the man who had just twice tried to take his work in court.
Woods said no.
Then, from outside it, he sold the company patents as a vendor. What he wanted, it turned out, was not a desk. He wanted the cheque, the credit line on the patent, and the door he could shut on his way out.
He filed roughly fifty more before he was finished.
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- Wikipedia β Granville Woods β Biographical entry with patent numbers (US 373,915; US 509,065), dates, family details, Phelps and Zerbe suits, burial at St. Michael's Cemetery, and 1975 marker.
- National Inventors Hall of Fame β Granville Woods β Official Hall of Fame profile (2006 induction) listing key inventions, sales to GE and Westinghouse, and the Edison rivalry.
- Biography.com β Granville T. Woods β Standard biographical overview with birth/death, education in NYC 1876β78, troller, third-rail, multiplex telegraph, and Edison lawsuit.
- Encyclopedia.com β Granville T. Woods β Lists ~60 patents with specific dates (steam boiler furnace June 3, 1884; induction telegraph Nov 29, 1887; egg incubator 1900; air brake 1902); $1.20/day porter job; smallpox; Monsey farm.
- American Physical Society β Granville Woods Patents Induction Telegraph (Oct 2023) β Detailed treatment of the 1887 induction telegraph, the Faraday-induction physics, and the two unsuccessful Edison challenges.
- Queens Scene β Granville T. Woods: Tribute To A Black Pioneer

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