Patents by Inventor Tengteng Du

Tengteng Du 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).

  • Robotic vacuum cleaner
    Patent number: D921308
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: June 1, 2021
    Inventors: Pei Cao, Tengteng Du, Zhaohua Lv
  • Floor cleaning machine
    Patent number: D1019031
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: March 19, 2024
    Assignees: JIANGSU MIDEA CLEANING APPLIANCES CO., LTD., MIDEA GROUP CO., LTD.
    Inventor: Tengteng Du