Patents by Inventor Douglas J. Hoffbeck

Douglas J. Hoffbeck 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).

  • Beverage can holder
    Patent number: D402837
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: December 22, 1998
    Assignee: Emplast, Inc.
    Inventors: William A. Boire, Kim L. Olson, Douglas J. Hoffbeck