HL

Haojun Liu

CC China Railway No. 3 Engineering Group Co.: 1 patents #1 of 63Top 2%
SC State Grid Corporation Of China: 1 patents #289 of 1,453Top 20%
Overall (All Time): #1,334,434 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12350786 Apparatus for automatically polishing butt weld of ultralong large-diameter pipeline Depeng Sun, Yunlong Li, Yufeng Wu, Jianlin Zhang, Jiujun Wang +5 more 2025-07-08
12326471 Transformer bushing partial discharge monitoring chip device and method Xiaoxin Chen, Xianjun SHAO, Ping QIAN, Chen Li, Yiming ZHENG +5 more 2025-06-10
10546074 Method and system for obtaining relation between winding state and leakage reactance parameter of transformer Wenlin He, Xiang Sun, Wei Qiu, Hui YAO, Xuesong Dong +5 more 2020-01-28