Patents by Inventor James R. Routzong

James R. Routzong 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).

  • Toy vehicle steering simulation device
    Patent number: D259269
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: May 19, 1981
    Assignee: Louis Marx & Co., Inc.
    Inventors: Edward B. Bretschger, James R. Routzong