Patents by Inventor Tong Chack Fai

Tong Chack Fai 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: D478514
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: August 19, 2003
    Assignee: Watson Enterprises Limited
    Inventor: Tong Chack Fai