Patents by Inventor James David Simpson

James David Simpson 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).

  • Bullnose corner bead shear
    Patent number: 6125546
    Abstract: A bullnose corner bead shear for making internal angle corner cuts to bullnose corner bead.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: October 3, 2000
    Inventors: Rick Asa Laws, James David Simpson