Patents by Inventor Norma Rosenhain

Norma Rosenhain 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).

  • Speed indicating ball
    Patent number: 5526326
    Abstract: A speed indicating ball includes a timer, which is activated upon throwing of the ball, and deactivated upon catching of the ball, for measuring the ball's time of flight. The timer is connected to a display which provides a direct read out which is inversely proportional to the time of flight of the ball, and which corresponds to the relative velocity of the ball.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: June 11, 1996
    Assignee: Creata Inc.
    Inventors: Ferenc Fekete, Kai Chung-Ho, Norma Rosenhain