Patents by Inventor Beihuang Cao

Beihuang Cao 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).

  • Arm training bar
    Patent number: D965084
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: September 27, 2022
    Assignee: Yiwu Quanren Trading Co., Ltd.
    Inventor: Beihuang Cao
  • Twist hand exerciser bar
    Patent number: D965085
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: September 27, 2022
    Assignee: Yiwu Quanren Trading Co., Ltd.
    Inventor: Beihuang Cao
  • Twist hand exerciser
    Patent number: D965086
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: September 27, 2022
    Assignee: Yiwu Quanren Trading Co., Ltd.
    Inventor: Beihuang Cao