Patents by Inventor David R. Hoidal

David R. Hoidal 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).

  • Tote bag
    Patent number: D508320
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: August 16, 2005
    Assignee: Toegoz, Inc.
    Inventors: William T. Holland, David R. Hoidal