SZ

Shanyan Zhang

PL Petrochina Company Limited: 1 patents #264 of 890Top 30%
Overall (All Time): #2,676,273 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11428065 Borehole wall resistance increasing apparatus for improving energy utilization rate of injection gas Xinglong Chen, Qingxin Song, Zhidong Yang, Zemin Ji, Yulong Pu 2022-08-30