Patents by Inventor Fenghui Du

Fenghui Du 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).

  • Eye mask
    Patent number: D907688
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: January 12, 2021
    Assignee: SHENZHEN KAIBEIRUI TRADING CO., LTD.
    Inventor: Fenghui Du
  • Eye mask
    Patent number: D918991
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 11, 2021
    Assignee: SHENZHEN KAIBEIRUI TRADING CO., LTD.
    Inventor: Fenghui Du