Patents by Inventor Walter P. Facius

Walter P. Facius 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).

  • Tennis training device
    Patent number: 4309032
    Abstract: A tennis training device includes a rigid backboard and a pair of laterally spaced rigid target areas mounted on the backboard. Detection apparatus is provided for detecting impact on the target areas, which detection detection apparatus is selectively activated in accordance with a predetermined sequence in order to require the player to control movement of a ball rebounding from the backboard and target areas from one activated target area to another.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: January 5, 1982
    Inventor: Walter P. Facius