Patents by Inventor Debra E. Serth

Debra E. Serth 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).

  • Purge flow control valve
    Patent number: 4703738
    Abstract: A valve obstructs flow of fuel vapor to an engine induction passage both when the engine is not operating and when the engine is operating with a closed throttle, and varies flow of fuel vapor to the induction passage when the engine is operating with an open throttle.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: November 3, 1987
    Assignee: General Motors Corporation
    Inventors: Chris M. DeMinco, Martin J. Field, Debra E. Serth