Patents by Inventor Devlin S. Wollstein

Devlin S. Wollstein 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).

  • Patent number: 5269526
    Abstract: An indoor golf game including a hole layout area enclosed by netting and a substantially planar rigid or solid rebound surface. A ball is hit from a tee in the hole layout area towards the rebound surface so as to rebound towards a hole in the green area of the hole layout. The ball used in the game comprises a ball having a hard surface so as to provide a feel of a standard golf ball, but a resilience substantially less than a standard golf ball so that the ball resiliently deforms and loses substantial kinetic energy upon striking the rebound surface. The ball has a hardness in the range of 70-105 Durometer, and a resilience in the range of 10%-40%.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: December 14, 1993
    Assignee: Waggle Pty Ltd.
    Inventor: Devlin S. Wollstein