Patents by Inventor Tsui Yuk Sin

Tsui Yuk Sin 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).

  • Jewelry setting
    Patent number: D648651
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: November 15, 2011
    Assignee: Dimexon (Hong Kong) Limited
    Inventor: Tsui Yuk Sin