Patents by Inventor Xuanwen Ouyang

Xuanwen Ouyang 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).

  • E-cigarette
    Patent number: D924475
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: July 6, 2021
    Inventor: Xuanwen Ouyang