Patents by Inventor Gregory A. Cunningham

Gregory A. Cunningham 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 serve training net device
    Patent number: 5029853
    Abstract: An adjustable serve training net device (10) for developing a proper ball toss and contact point height for the serve. The practice net device (10) includes a lower ground base (15) having two base sides (11A) and (11B) and a cross base memer (21). A pair of support legs (22a) and (22b) attach to lower ground base (15) and support the upper net structure (41) above the ground base (15). Telescoping members (24e) and (24b) telescope in and out of support legs (22a) and (22b) enabling upper net structure (41) to be raised or lowered to the desired height needed by the individual.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: July 9, 1991
    Inventor: Gregory A. Cunningham