Patents by Inventor Calvin R Stephens

Calvin R Stephens 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).

  • Remote control locating unit
    Patent number: D424464
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: May 9, 2000
    Inventor: Calvin R Stephens