Patents by Inventor Andrew K. Hatate

Andrew K. Hatate 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).

  • Integrated maintenance bypass switch and method of operation thereof
    Patent number: 5646459
    Abstract: In a backup power system capable of deriving power from alternate AC primary and DC backup power sources to provide continuous AC power to an AC load and including an inverter/switch module having DC and AC inputs and an AC output, a maintenance bypass switch for, and method of decoupling the AC primary and DC backup power sources from the backup power module to allow maintenance to be performed thereon.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: July 8, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Andrew K. Hatate, Franklin F. Makan