Patents by Inventor Yen Tung Yan Lau

Yen Tung Yan Lau 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).

  • Card holder
    Patent number: D439042
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: March 20, 2001
    Assignee: Specialife Industries Ltd.
    Inventor: Yen Tung Yan Lau