Patents by Inventor Jerry R. Erwin

Jerry R. 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).

  • Patent number: D334507
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: April 6, 1993
    Inventor: Jerry R. Erwin