Theodore Miller Edison

Theodore Miller Edison (July 10, 1898 – November 24, 1992) was an American inventor and businessman. He was the fourth son of Thomas Edison.
Edison worked for his father's company, Thomas A. Edison, Inc., starting as a lab assistant. He later started his own company, Calibron Industries, Inc. After that, he built his own laboratory in West Orange, New Jersey. He earned over 80 patents in his career.