Patents by Inventor John Cullin

John Cullin 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).

  • Electro-mechanical-hydraulic power generating system
    Patent number: 4663937
    Abstract: A power generating system comprising a hydraulic transmission driven by an electric motor. The hydraulic transmission drives electric generators for recharging the electric motor battery, and a speed reducing mechanism and reverse speed reducing mechanism before and after the hydraulic transmission, respectively, allow the system to operate in optimum efficiency.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: May 12, 1987
    Assignee: Creative Energy Technologies, Inc.
    Inventor: John Cullin