Patents by Inventor Ernest J. Erwin

Ernest J. Erwin 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 box
    Patent number: D456994
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: May 14, 2002
    Inventor: Ernest J. Erwin