Patents by Inventor Adolf E. J. Zijl

Adolf E. J. Zijl 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: D925393
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: July 20, 2021
    Inventors: Adolf E. J. Zijl, Frederick Leo McCollum