Patents by Inventor Ralph T. Jacobsen

Ralph T. Jacobsen 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).

  • Lantern
    Patent number: D248504
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: July 11, 1978
    Assignee: ESB Incorporated
    Inventors: Nolan Rhoades, Daniel C. Oakley, Ralph T. Jacobsen