Patents by Inventor Lien Chou Wang

Lien Chou Wang 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).

  • Zipper head structure
    Patent number: 6944919
    Abstract: A zipper head structure comprises a pull tab, a base and a universal joint. The base has a receiving space for receiving a zipper chain scoop. The universal joint is connected between the pull tab and the base. Through the design of the universal joint, the pull tab can rotate for 360 degrees to match the motion of the zipper, hence providing the most appropriate and labor-saving angle.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: September 20, 2005
    Inventor: Lien Chou Wang