QZ

Qionglin Zheng

BU Beijing Jiaotong University: 1 patents #1 of 15Top 7%
Overall (2020): #310,345 of 565,922Top 55%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10744880 Negative voltage backflow direct current supply system for rail transport Xiaofeng Yang, Xiaojie You, Ruixiang Hao, Hong Li 2020-08-18