Patents by Inventor Stan Gray

Stan Gray 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).

  • Patent number: 4192273
    Abstract: My invention relates to internal combustion engines and its main objects are to provide improved combustion, fewer exhaust emissions, with less fuel consumption. It relates particularly to the intake manifold, where by properly positioning my device, a more efficient, catalyzed, fuel mixture is produced, resulting in exhaust emissions well below established standards, and a substantial increase in miles per gallon of fuel.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: March 11, 1980
    Inventor: Stan Gray