Patents by Inventor Jeffery J. Parker

Jeffery J. Parker 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).

  • Fuel cell inverter
    Publication number: 20030206424
    Abstract: The invention is directed to a method, system and device for converting direct current (DC) electrical voltage from a fuel cell to an alternating current (AC) voltage. The inventive method regulates power drawn from the fuel cell and from a battery to maintain a substantially constant DC voltage across a DC bus, and inverts the DC voltage from the DC bus to the AC voltage. The method may further electrically isolate the fuel cell from the load. Also, the inventive method may prevent current from flowing to the fuel cell. The inventive method may also provide a charging current to the battery.
    Type: Application
    Filed: July 31, 2001
    Publication date: November 6, 2003
    Inventors: Aaron M. Jungreis, Jeffery J. Parker