Patents by Inventor Robin D. Friedhoff

Robin D. Friedhoff 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: D330715
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: November 3, 1992
    Assignee: Coburn Optical Industries, Inc.
    Inventors: Joe L. Welch, John Compelube, Robin D. Friedhoff