Peter Cooper Hewitt

Peter Cooper Hewitt
Peter Cooper Hewitt holding his mercury vapor rectifier
Born	(1861-05-05)May 5, 1861 New York City, New York, U.S.
Died	August 25, 1921(1921-08-25) (aged 60) Paris, France
Burial place	Green-Wood Cemetery, Brooklyn, New York
Nationality	American
Alma mater	Stevens Institute of Technology Columbia University
Known for	Arc discharge lamp, mercury-arc valve
Awards	Elliott Cresson Medal (1910)
Signature

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.^[1] Hewitt was issued U.S. patent 682,692 on September 17, 1901.^[2] In 1903, Hewitt created an improved version that possessed higher color qualities which eventually found widespread industrial use.^[1]