Patents by Inventor Stanley Plagenhoef

Stanley Plagenhoef 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: 4280700
    Abstract: A set of golf clubs, including both woods an irons, is disclosed in which the various clubs are constructed in their various parameters to aid the user to insure that each and every swing of the club follows the correct path and also to resist rotation of the club head and shaft during impact with the ball about a variety of pivot points on the shaft to assure that the ball will travel in a true flight pattern. The club head is weighted to locate its center of percussion near the toe of the head to reduce rotation of the head at impact about the shaft axis and the handle of the club is weighted to locate the center of percussion of the club below the club head to reduce rotation of the club about the pivot point defined by the base of the index finger of the lower hand in the grip.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: July 28, 1981
    Assignee: Motion Analysis Inc.
    Inventor: Stanley Plagenhoef