Patents by Inventor Wen J. Tai

Wen J. Tai 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 driver with variable weighting for changing center of gravity
    Patent number: 5050879
    Abstract: A golf club head has three cavities spaced along the sole of the head. A set of weight members having various weights is provided. Such weight members are selectively installed in the cavities to vary the center of gravity of the club head horizontally, between the toe and heel of the head to modify the driving action of the club as may be desired.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: September 24, 1991
    Assignee: Cipa Manufacturing Corporation
    Inventors: Donald J. C. Sun, Wen J. Tai
  • Golf driver with variable weighting for changing center of gravity
    Patent number: 5013041
    Abstract: A golf club head has a pair of parallel longitudinal chambers running thereacross behind the face plate. A set of weight members having various weights is provided. Such weight members are selectively installed in the chambers to vary the center of gravity of the club head both horizontally and vertically to modify the driving action of the club as may be desired.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: May 7, 1991
    Assignee: Cipa Manufacturing Corporation
    Inventors: Donald J. C. Sun, Wen J. Tai
  • Golf club head
    Patent number: D326886
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: June 9, 1992
    Assignees: Cipa Manufacturing Corporation, Donald A. Anderson
    Inventors: Donald J. C. Sun, Wen J. Tai