Patents by Inventor Joel M. Rosenberg

Joel M. Rosenberg 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).

  • Publication number: 20030027483
    Abstract: A play piece may be positioned in three dimensions without actually contacting a play piece. A three dimensional structure may be include with a grid of electromagnetic actuators. By selectively controlling the current through such actuators, the position of the play piece, having a permanent magnet, may be adjusted. In addition, the current induced by the play piece may be utilized to determine the location of the play piece.
    Type: Application
    Filed: April 18, 2001
    Publication date: February 6, 2003
    Inventor: Joel M. Rosenberg