QQ

Qingjie Qi

Overall (2022): #296,372 of 548,613Top 55%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11428101 Anti-seismic support method for mine shaft Anhu Wang, Wengang Liu, Haiyan Wang, Yingjie Liu, Youxin Zhao +1 more 2022-08-30