Patents by Inventor Kirsten E. Hertz

Kirsten E. Hertz 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).

  • Curtain for a toy building set
    Patent number: D357949
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: May 2, 1995
    Assignee: Interlego AG
    Inventors: Henrik K. Nielsen, Kirsten E. Hertz