Patents by Inventor Richard Randall Spencer

Richard Randall Spencer 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: D398478
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: September 22, 1998
    Inventor: Richard Randall Spencer
  • Patent number: D405006
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: February 2, 1999
    Inventor: Richard Randall Spencer
  • Patent number: D412087
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: July 20, 1999
    Inventor: Richard Randall Spencer