Patents by Inventor Douglas A. Gremaux

Douglas A. Gremaux 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).

  • Vehicle battery condition monitoring system
    Patent number: 6417668
    Abstract: A method and an apparatus for monitoring a vehicle battery installed on a motor vehicle and indicating the condition of the battery is provided which does not require removal of the battery from the vehicle. Upon initial movement of the ignition key from off to on, open circuit voltage is measured and compared to an allowable range. If open circuit voltage is acceptable, the possibility that polarization is skewing the result is determined, and if the possibility is indicated, a load test is imposed on the engine. Results of testing are maintained as data records to provide updates of the comparison values used for subsequent tests.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: July 9, 2002
    Assignee: International Truck International Property Company, L.L.C.
    Inventors: Charles E. Howard, Keith E. West, Douglas A. Gremaux, James D. Baker, H. Edward Kelwaski