Patents by Inventor Roy Burnham

Roy Burnham 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).

  • Truck step guard
    Patent number: 5566962
    Abstract: A device for preventing unauthorized access to the steps of vehicles. The invention includes a hinged door which covers the access steps. The door can be locked from within or without the vehicle cab. When unlocked, the door pivots, thereby allowing a foot hold to be established.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: October 22, 1996
    Inventor: Roy Burnham