Patents by Inventor Cheng Yu Kwong

Cheng Yu Kwong 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).

  • Watch
    Patent number: D822510
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 10, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Cheng Yu Kwong
  • Watchcase
    Patent number: D857525
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 27, 2019
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Cheng Yu Kwong