Patents by Inventor Qiuxian Xu

Qiuxian Xu 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).

  • Electric soldering iron
    Patent number: D879169
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: March 24, 2020
    Inventor: Qiuxian Xu
  • Soldering iron
    Patent number: D955193
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: June 21, 2022
    Inventor: Qiuxian Xu
  • Soldering iron
    Patent number: D960674
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: August 16, 2022
    Inventor: Qiuxian Xu
  • Soldering iron
    Patent number: D968919
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: November 8, 2022
    Inventor: Qiuxian Xu