Patents by Inventor Wayne M. Hultberg

Wayne M. Hultberg 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).

  • Utility cart for cleaning equipment
    Patent number: D256446
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: August 19, 1980
    Assignee: Huntington Laboratories Inc.
    Inventor: Wayne M. Hultberg