Patents by Inventor Donald Tamsen

Donald Tamsen 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).

  • Patent number: D304907
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: December 5, 1989
    Assignee: Conagra, Inc.
    Inventors: Donald Tamsen, Gerald R. Ormsby