https://en.wikipedia.org/wiki/Lewis_Howard_Latimer
Latimer received a patent on January 17, 1882 for the "Process of Manufacturing Carbons", an improved method for the production of lightbulb carbon filaments.[8][9]
The Edison Electric Light Company in New York City hired Latimer in 1884, as a draftsman and an expert witness in patent litigation on electric lights. While at Edison, Latimer wrote the first book on electric lighting, Incandescent Electric Lighting (1890)[10] and supervised the installation of public electric lights throughout New York, Philadelphia, Montreal, and London.[11] When that company was combined in 1892 with the Thomson-Houston Electric Company to form General Electric, he continued to work in the legal department. In 1911, he became a patent consultant to law firms.[
Edison is more of a fraud than I thought already.
Edited by Say_What at 13:51:58 on 09/04/20