Patents by Inventor Chun Yu Cheung

Chun Yu Cheung 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).

  • Diamond
    Patent number: D809422
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 6, 2018
    Assignee: Foshan Yueshun Fook Jewellery and Diamond Co. Ltd.
    Inventor: Chun Yu Cheung