Patents by Inventor Charles E. Graham

Charles E. Graham 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).

  • Heel cushion
    Patent number: D286948
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: December 2, 1986
    Inventor: Charles E. Graham