Patents by Inventor William Steven Martin

William Steven Martin 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).

  • Door for a safe
    Patent number: D729490
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 12, 2015
    Assignee: Stack-On Products Co.
    Inventors: Don Pannier, William Steven Martin, Mark Coulter, Shelley A. Nehrt
  • Door for a safe
    Patent number: D744190
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: November 24, 2015
    Assignee: STACK-ON PRODUCTS COMPANY
    Inventors: Don Pannier, William Steven Martin, Mark Coulter, Shelley A. Nehrt