Patents by Inventor Ning Wong

Ning Wong 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).

  • Body of vacuum flask
    Patent number: D839683
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: February 5, 2019
    Assignee: WBOTTLE LIMITED
    Inventor: Ning Wong
  • Bottom base of vacuum flask
    Patent number: D862992
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 15, 2019
    Assignee: WBOTTLE LIMITED
    Inventor: Ning Wong