Patents by Inventor Alfred E. Koch

Alfred E. Koch 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 swing training device
    Patent number: 4854585
    Abstract: A golf swing training device including a two-way hinge mechanism interposed between the grip and head of a golf club shaft. The hinge mechanism includes a female member having yoke portions defining a cavity adapted to receive a male member therebetween. A pivot pin is received through aligned apertures to permit articulating movement of the male member relative to the female member.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: August 8, 1989
    Inventors: Alfred E. Koch, Robert C. Koch