Patents by Inventor Hengfei Liao

Hengfei Liao 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).

  • Shampoo brush
    Patent number: D938735
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: December 21, 2021
    Assignee: Shenzhen Xianling E- Commerce Co., Ltd.
    Inventor: Hengfei Liao