Patents by Inventor Keith Pigott

Keith Pigott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ultraviolet emitting arc discharge lamp
    Patent number: 4074166
    Abstract: A highly loaded ultraviolet emitting arc discharge lamp has an arc length longer than 36 inches and contains a fill of mercury, inert gas at 8-10 torr and a small amount of niobium.
    Type: Grant
    Filed: November 19, 1976
    Date of Patent: February 14, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Edward A. Webb, Nikolaos Barakitis, Keith Pigott