Patents by Inventor Robert Roy McMath

Robert Roy McMath 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: D398574
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 22, 1998
    Inventor: Robert Roy McMath
  • Patent number: D399181
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: October 6, 1998
    Inventor: Robert Roy McMath
  • Patent number: D400489
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: November 3, 1998
    Inventor: Robert Roy McMath
  • Patent number: D406255
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: March 2, 1999
    Inventor: Robert Roy McMath