Patents by Inventor Henry Rijken

Henry Rijken 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).

  • Drink tray
    Patent number: 5765689
    Abstract: A portable foldable drink tray having at least two portions hinged to each other, the hinge being such to allow folding in one direction, but is prevented by stops to fold in the other direction. Holes are provided in each portion to receive drink containers. When not in use the tray may be folded for carrying in a pocket or personal purse or bag.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: June 16, 1998
    Inventors: Peter John Cobden, Henry Rijken