Patents by Inventor Douglas Martell

Douglas Martell 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).

  • Patent number: D596187
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: July 14, 2009
    Inventor: Douglas Martell
  • Patent number: D398458
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: September 22, 1998
    Inventor: Douglas Martell
  • Patent number: D410910
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: June 15, 1999
    Inventor: Douglas Martell