Patents by Inventor Tsang Hon Cheun

Tsang Hon Cheun 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).

  • Light fixture
    Patent number: D400997
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: November 10, 1998
    Assignee: Heath Company
    Inventors: Tsang Hon Cheun, Wai-Shing Peter Ko