Patents by Inventor Keen

Keen 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: D395095
    Type: Grant
    Filed: July 26, 1997
    Date of Patent: June 9, 1998
    Inventor: Keen
  • Patent number: D395096
    Type: Grant
    Filed: July 26, 1997
    Date of Patent: June 9, 1998
    Inventor: Keen
  • Patent number: D397473
    Type: Grant
    Filed: July 26, 1997
    Date of Patent: August 25, 1998
    Inventor: Keen