Patents by Inventor Kenneth William Gardner

Kenneth William Gardner 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).

  • Regulated uninterruptible power supply
    Patent number: 4038559
    Abstract: An uninterruptible power supply derives regulated power from either a primary power source or a reserve power source. A power flow control unit derives the output power as needed from either one or both power sources. Its operating characteristics are selected so that complicated transfer and disconnect circuitry is eliminated.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: July 26, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Ping Sun Chun, Patrick William Clarke, Kenneth William Gardner