From 1870 to 1940, patents by residents of Washington, Maine, Colorado, Pennsylvania, and Indiana, as well as those born in ...

Lee de Forest (1873-1961), the inventor of the "Audion" tube, who liked to call himself the "Father of Radio." De Forest grew up in Talladega, Alabama, where his father was the white president of ...

Britt Wray, presenter of The Nature of Invention If a certain stereotype comes to mind when you hear the word “inventor” — grey-haired, mostly white, mainly dead men — you’re not alone.