Patents by Inventor Borgtor Gjerde

Borgtor Gjerde 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
    Patent number: D293859
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: January 26, 1988
    Inventor: Borgtor Gjerde