Patents by Inventor John C. S. Chen

John C. S. 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).

  • Shell-shaped clock
    Patent number: D296673
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: July 12, 1988
    Assignee: Iradwell Ind. Co. Ltd.
    Inventor: John C. S. Chen