Patents by Inventor Nga Hang Tsang

Nga Hang Tsang 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).

  • Patent number: D835731
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 11, 2018
    Assignee: Creative Balls Manufacturing Ltd.
    Inventors: Barry Rub, Nga Hang Tsang