Patents by Inventor Spence K. Sims

Spence K. Sims 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: D463004
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: September 17, 2002
    Inventors: Spence K. Sims, James H. Andersen