Patents by Inventor David vanZon

David vanZon 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).

  • Dual seat economy cart
    Patent number: D719772
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: December 23, 2014
    Assignee: Carstens, Inc.
    Inventors: George Peter Block, Jr., David vanZon, Robert Foster