Patents by Inventor Denis B. Darby

Denis B. Darby 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: D375517
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: November 12, 1996
    Assignee: U S West, Inc.
    Inventor: Denis B. Darby