Patents by Inventor Huajian Ma

Huajian Ma 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).

  • Bracket
    Patent number: D980044
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 7, 2023
    Assignee: Shenzhen Zhongshang Technology Co., Ltd.
    Inventor: Huajian Ma
  • Rotatable cup rack
    Patent number: D1054792
    Type: Grant
    Filed: September 12, 2024
    Date of Patent: December 24, 2024
    Inventor: Huajian Ma