Patents by Inventor Bruce E. Chinn

Bruce E. Chinn 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).

  • Portable railroad crossing signal
    Patent number: D357881
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: May 2, 1995
    Assignee: Garry W. Viebrock
    Inventors: Bruce E. Chinn, Garry W. Viebrock