Patents by Inventor Leonard Barnes

Leonard Barnes 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).

  • Exhaust pipe cover
    Patent number: D500468
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: January 4, 2005
    Inventor: Leonard Barnes
  • Exhaust pipe cover
    Patent number: D489662
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 11, 2004
    Inventor: Leonard Barnes
  • Exhaust pipe cover
    Patent number: D489663
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 11, 2004
    Inventor: Leonard Barnes
  • Exhaust pipe cover
    Patent number: D489664
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 11, 2004
    Inventor: Leonard Barnes
  • Exhaust pipe cover
    Patent number: D490037
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 18, 2004
    Inventor: Leonard Barnes
  • Exhaust pipe cover
    Patent number: D494116
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: August 10, 2004
    Inventor: Leonard Barnes