Patents by Inventor John P. Helgesen

John P. Helgesen 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).

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    Patent number: D370419
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: June 4, 1996
    Assignee: GTC Properties, Inc.
    Inventors: John P. Helgesen, Wendell Wilson