Patents by Inventor John Vincent Hellmann

John Vincent Hellmann 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).

  • Battery having an integral cooling system
    Patent number: 6512347
    Abstract: A battery system including at least one battery cell having an interior and having at least one exterior surface is provided with at least one cooling plate that is positioned in engagement with the exterior surface for absorbing heat from the interior of the battery cell. A cooling tube is thermally coupled to the cooling plate for absorbing heat from the cooling plate.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: January 28, 2003
    Assignee: General Motors Corporation
    Inventors: John Vincent Hellmann, Jianmin Zhu