Patents by Inventor Thomas D. Sumrall

Thomas D. Sumrall 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: D339600
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: September 21, 1993
    Inventor: Thomas D. Sumrall