Lewis Latimer

(1848–1928)

Latimer made the lightbulb more practical and contributed to the invention of the first telephone.

Latimer worked with the famous inventor Hiram Maxim at the U.S. Electric Lighting Company. While working there in 1881, Latimer patented a carbon filament for the incandescent lightbulb. The invention helped make electric lighting practical and affordable for the average household.

In addition to working with Maxim, Latimer drafted the drawings that Alexander Graham Bell used to patent the first telephone in 1876. He also worked for Thomas Edison.