Patents by Inventor Charles R. Holbrook

Charles R. Holbrook 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: 5039104
    Abstract: A golf practice device for use in practicing chipping and pitching techniques. A net is attached to an adjustable ring which is supported by legs connected to the ring. The diameter of the ring can be made smaller thereby challenging the golfers to make a more precise practice shot. The support legs can be variably attached to the ring to create different inclines of the device face with the supporting surface. The ring as well as the support legs are manufactured from a lightweight, strong yet flexible plastic material. The assembly can be dismantled easily for storage or transport.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: August 13, 1991
    Inventor: Charles R. Holbrook