Peter Cooper Hewitt
American electrical engineerDied when: 60 years 112 days (723 months)
Star Sign: Taurus
Peter Cooper Hewitt (May 5, 1861 – August 25, 1921) was an American electrical engineer and inventor, who invented the first mercury-vapor lamp in 1901.
Hewitt was issued U.S.Patent 682,692 on September 17, 1901.In 1903, Hewitt created an improved version that possessed higher color qualities which eventually found widespread industrial use.