Patents by Inventor Mingna He

Mingna He 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).

  • Electric toothbrush head
    Patent number: D993624
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: August 1, 2023
    Assignee: Shenzhen Beijiachun Technology Co., LTD
    Inventor: Mingna He
  • Electric toothbrush head
    Patent number: D993625
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: August 1, 2023
    Assignee: Shenzhen Beijiachun Technology Co., LTD
    Inventor: Mingna He
  • Electric toothbrush head
    Patent number: D993626
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: August 1, 2023
    Assignee: Shenzhen Beijiachun Technology Co., LTD
    Inventor: Mingna He
  • Electric toothbrush head
    Patent number: D993817
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: August 1, 2023
    Assignee: Shenzhen Beijiachun Technology Co., LTD
    Inventor: Mingna He