Patents by Inventor Robert G. Grey

Robert G. Grey 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).

  • Tambourine
    Patent number: D446238
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: August 7, 2001
    Inventor: Robert G. Grey
  • Tambourine
    Patent number: D336488
    Type: Grant
    Filed: February 13, 1991
    Date of Patent: June 15, 1993
    Inventor: Robert G. Grey
  • Clip-on work light for mechanics
    Patent number: D785844
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 2, 2017
    Inventor: Robert G. Grey