Thomas Edison, one of the greatest inventors of all time, received more than 1,300 patents for a range of items including the automatic telegraph machine, the phonograph, improvements to the light bulb, a modernized telephone, and m,otion picture equipment. He concetrated on electrical inventions and opened his first "invention factory" in Newark, New Jersey, in 1870. In 1876 he opened his lab in Menlo Park where he and his workers developed and patented the incandescent light bulb, a tramsitter for the telephone, and the phonograph, his favorite invention. He operated the world's first electric power station on Pearl Street in New York City, opened in 1882. By 1887 he expanded operations to West Orange, New Jesrsey, where workers averaged one patented invention every five days.
Additional Information Can Be Found At...
Invent Now -- Hall of Fame -- Thomas Alva Edison
Lemelson Center Invention Features: Thomas Edison
Thomas Alva Edison Commemorative
Thomas Alva Edison (1847-1931)
Thomas Alva Edison as a Scientist and Inventor