Patents by Inventor Dewen Zeng

Dewen Zeng 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).

  • Doorbell base
    Patent number: D968996
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: November 8, 2022
    Assignee: SHENZHEN YIZE INNOVATION TECHNOLOGY CO., LTD.
    Inventor: Dewen Zeng
  • Heat sealer
    Patent number: D970569
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: November 22, 2022
    Assignee: SHENZHEN YIZE INNOVATION TECHNOLOGY CO., LTD.
    Inventor: Dewen Zeng