Patents by Inventor Willem J. Schoonhoven

Willem J. Schoonhoven 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).

  • Skateboard with suspension system
    Patent number: 7044486
    Abstract: A skateboard includes a board having a tip portion and a tail portion. A substantially U-shaped first aperture is formed in the tip portion, with an open end of the first aperture opening toward a central portion of the board. A substantially U-shaped second aperture is formed in the tail portion, with an open end of the second aperture opening toward a central portion of the board.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: May 16, 2006
    Assignee: Nike, Inc.
    Inventors: Steven P. Wright, Raymond W. Riley, Willem J. Schoonhoven, Merijn Hartog, Lucien H. Vink, Michiel S. Knoppert