Patents by Inventor Douglas E. Frieden

Douglas E. Frieden 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).

  • Apparatus and method for accelerated exhaust system component heating
    Patent number: 7007460
    Abstract: Accelerated heating of automotive exhaust system components is effected by controlling the application of supplemental electrical loads to the vehicle electrical system thereby increasing engine load and increasing exhaust heat. Alternative strategies are disclosed for implementing the invention through control of electrical and engine management system parameters.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: March 7, 2006
    Assignee: General Motors Corporation
    Inventors: Douglas E. Frieden, David J. Cleary, Sanjeev Manubhai Naik