Patents by Inventor William Michael Griffin

William Michael Griffin 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).

  • Footwear attachment
    Patent number: D752324
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: March 29, 2016
    Inventors: William Michael Griffin, Andrew A. Kroll
  • Self defense holster
    Patent number: D753261
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 5, 2016
    Inventors: William Michael Griffin, Andrew A. Kroll
  • Self defense protection device
    Patent number: D755917
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 10, 2016
    Inventor: William Michael Griffin
  • Self defense apparatus
    Patent number: D756482
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: May 17, 2016
    Inventor: William Michael Griffin