Patents by Inventor Tsang-Ho Chen

Tsang-Ho Chen 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).

  • Desk clock
    Patent number: D348008
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: June 21, 1994
    Inventors: Tsang-Ho Chen, Long-Jui Chein