Patents by Inventor Curtis B. Campbell

Curtis B. Campbell 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).

  • Clean combustion chamber fuel composition
    Patent number: 4270930
    Abstract: A fuel composition for gasoline engines which keeps combustion chambers clean, does not contribute to octane requirement increase and even serves to decrease the octane requirements of an engine which has undergone octane requirement increase while operating on other fuel compositions. The fuel composition comprises a major amount of gasoline and at least 0.4 weight percent of a hydrocarbyl poly(oxyalkylene) aminocarbamate.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: June 2, 1981
    Assignee: Chevron Research Company
    Inventors: Curtis B. Campbell, Richard J. Peyla