Patents by Inventor James D. Gragg

James D. Gragg 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).

  • Automotive wheel enhancers
    Patent number: 5290094
    Abstract: A wheel enhancing apparatus comprising a center cap and a wheel mounting assembly for mounting the center cap on the center cone of a wheel such that the center cap will rotate independently of the wheel.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: March 1, 1994
    Inventor: James D. Gragg