Patents by Inventor Craig L. Foster

Craig L. Foster 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: 4981297
    Abstract: A golf training device in which there is a spherical golf club grip structure, substantially in the shape of a golf ball, with a cylindrical bore and separation point allowing attachment of the spherical golf club grip structure with a golf club handle. The outer surface of the spherical golf club grip structure contains indentations known as dimples to provide a realistic feeling of holding a golf ball while a golfer holds the spherical golf club grip structure and strokes a golf ball with a golf club. The sensation of holding a golf ball in the hand while stroking a golf ball allows the golfer to judge how much force is necessary to apply to the golf stroke in order to cause a golf ball to travel a desired distance to the hole in the putting green. When the spherical golf club grip structure is removed from the golf club, the sensation of holding a golf ball in the hand remains thus imparting greater sensation and increased skill while making a golfing stroke.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: January 1, 1991
    Inventor: Craig L. Foster
  • Patent number: 4804181
    Abstract: A golf training device in which there is a removable semi-spherical golf club grip structure, substantially in the shape of a golf ball, with a dimpled surfae, that can be attached to the grip of a golf club and held in the hand of the golfer in order to give the sensation of holding a golf ball in the hand while putting or chipping. The sensation of holding a golf ball with a dimpled surrafce, in the hand while putting or chipping allows the golfer to judge how much force is necessary to apply to the putting or chipping stroke in order to cause a golf ball to travel a desired specific distance to the hole. When this training device is removed from the golf club, the sensation of holding a golf ball in the hand remains, imparting greater sensation and increased skill to the golfer while putting and chipping.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: February 14, 1989
    Inventor: Craig L. Foster