Patents Assigned to DONGGUAN JINGNUO ENVIRONMENT SCIENCE AND TECHNOLOGY INC.
  • Air purifier
    Patent number: D972697
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 13, 2022
    Assignee: DONGGUAN JINGNUO ENVIRONMENT SCIENCE AND TECHNOLOGY INC.
    Inventors: Fei Zuo, Tianwen Wu, Rui Chen