Patents by Inventor Ning Nie

Ning Nie 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).

  • Robot vacuum cleaner
    Patent number: D975944
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: January 17, 2023
    Assignee: Dreame Innovation Technology (Suzhou) Co., Ltd.
    Inventors: Nan Jiang, Ning Nie
  • Robot vacuum cleaner
    Patent number: D975947
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: January 17, 2023
    Assignee: Dreame Innovation Technology (Suzhou) Co., Ltd.
    Inventors: Nan Jiang, Ning Nie