Patents by Inventor Denis O. Griggs

Denis O. Griggs 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).

  • Hockey target
    Patent number: 4245843
    Abstract: A hockey shooting target comprises a target element mounted in a peripheral framework, from which the element is removed on being struck by a properly aimed hockey puck, ball, etc. A saddle is provided for mounting the framework at suitable locations in the goalmouth of a hockey net. The target element is of flexible compressible impact resistant material, e.g. rubbery foam polyurethane, to permit its repeated re-use as a target element.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: January 20, 1981
    Inventor: Denis O. Griggs
  • Hockey target
    Patent number: D261667
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: November 3, 1981
    Inventor: Denis O. Griggs