Patents by Inventor John K. Gruberg

John K. Gruberg 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).

  • Toothbrush cover
    Patent number: D330979
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: November 17, 1992
    Assignee: Tooth Toy Inc.
    Inventor: John K. Gruberg
  • Toothbrush cover
    Patent number: D334290
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: March 30, 1993
    Assignee: Tooth Toy, Inc.
    Inventor: John K. Gruberg
  • Toothbrush cover
    Patent number: D337891
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: August 3, 1993
    Assignee: Tooth Toy, Inc.
    Inventor: John K. Gruberg
  • Toothbrush handle
    Patent number: D363165
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: October 17, 1995
    Assignee: Tooth Toy Inc.
    Inventor: John K. Gruberg