Patents by Inventor Dingdian Ma

Dingdian 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).

  • Patent number: D957739
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: July 12, 2022
    Assignee: SHENZHEN YIHAITONG TRADING CO., LTD
    Inventor: Dingdian Ma