Patents by Inventor Joseph Freiman

Joseph Freiman 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 and battery systems
    Publication number: 20070046250
    Abstract: In at least some embodiments, a system comprises a load and a fuel cell coupled to said load, the fuel cell being configured to provide a constant power level to said load. The system further comprises a battery coupled to said load and configured to provide power in excess of said constant power level to said load, if needed by said load.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 1, 2007
    Inventors: Joseph Freiman, Thomas Sawyers