Patents by Inventor Gary A. Stegmeier

Gary A. Stegmeier 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).

  • Golf practice apparatus
    Patent number: 5720670
    Abstract: A golf practice platform is provided having a practice surface which can be tilted to simulate up hill, down hill and side hill shots by the action of a pair of screw drives and a pair of double acting hydraulic cylinders acting about a universal joint. A golf practice mat is also provided for use on the tilting platform or on other golf practise surfaces. The mat provides a means for varying the exposed height of the bristles to simulate grass conditions such as tee box, fairway and rough.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: February 24, 1998
    Assignee: Griffin Intellectual Property Development Corporation
    Inventors: Bruce J. Oxley, Gary A. Stegmeier, Paul R. Crawford