Patents by Inventor Shaohua Duan

Shaohua Duan 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).

  • Portable detector
    Patent number: D939984
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: January 4, 2022
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Shaohua Duan, Xiaojun Yang, Yuhui Xu, Chang Liu
  • Portable detector
    Patent number: D993793
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: August 1, 2023
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Shaohua Duan, Xiaojun Yang, Yuhui Xu, Chang Liu