Patents by Inventor Gregory D. Sunstrum

Gregory D. Sunstrum 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).

  • Patent number: D307401
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: April 24, 1990
    Inventor: Gregory D. Sunstrum