Patents by Inventor Douglas R. Clayton

Douglas R. Clayton 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).

  • Chest shield
    Patent number: D340784
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: October 26, 1993
    Inventor: Douglas R. Clayton