Patents by Inventor Pak Wing Tsoi

Pak Wing Tsoi 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).

  • Laser head adjustment device for laser putter
    Patent number: 7066826
    Abstract: A head for a practice putter includes a front face with a ball-strike area, a pair of laser beam emitters located within the head and each emitting a laser beam at a respective side of the ball-strike area. The laser beams converge with one another to a point several yards directly forward of the ball-strike area.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 27, 2006
    Inventor: Pak Wing Tsoi