Patents by Inventor Robert J. Leasure

Robert J. Leasure 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).

  • Ball bearing valve guide
    Publication number: 20020186902
    Abstract: Essentially instead of a shaft reciprocating within a tube at close tolerances it rides on the radius of ball bearings creating surface area reduction.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 12, 2002
    Inventor: Robert J. Leasure