Patents by Inventor Chan Pit Wa

Chan Pit Wa 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).

  • Stopwatch
    Patent number: D439171
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: March 20, 2001
    Assignee: Timex Corporation
    Inventor: Chan Pit Wa