Patents Assigned to SHANGHAI NORWII TECHNOLOGY CO., LTD.
  • Wireless presenter
    Patent number: D913992
    Type: Grant
    Filed: April 21, 2019
    Date of Patent: March 23, 2021
    Assignee: SHANGHAI NORWII TECHNOLOGY CO., LTD.
    Inventor: Yongyan Huang
  • Sound amplifier
    Patent number: D931826
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: September 28, 2021
    Assignee: SHANGHAI NORWII TECHNOLOGY CO., LTD.
    Inventor: Yongyan Huang
  • Sound amplifier
    Patent number: D931827
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: September 28, 2021
    Assignee: SHANGHAI NORWII TECHNOLOGY CO., LTD.
    Inventor: Yongyan Huang