Patents by Inventor Grant Blakemore

Grant Blakemore 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).

  • Compast tumbler
    Patent number: D333713
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: March 2, 1993
    Assignee: Blackwall Products Ltd.
    Inventor: Grant Blakemore