Edison executed the first of his 1,093 successful U.S. patent applications on 13 October 1868, at the age of 21. He filed an estimated 500–600 unsuccessful or abandoned applications as well.

Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman who developed many devices that greatly influenced life around the world, including the phonograph and the long-lasting, practical electric light bulb. Dubbed “The Wizard of Menlo Park” by a newspaper reporter, he was one of the first inventors to apply the principles of mass production and large teamwork to the process of invention, and therefore is often credited with the creation of the first industrial research laboratory. Continue reading “How many patents was Thomas Edison granted?” →