Patents by Inventor Bert J. van der Werff

Bert J. van der Werff 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: D659115
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: May 8, 2012
    Inventor: Bert J. van der Werff