Patents by Inventor John Grissom

John Grissom 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).

  • Stool
    Patent number: D323248
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: January 21, 1992
    Assignee: Rimball Marketing and Development, Inc.
    Inventors: James C. Offutt, John Grissom