ZY

Zhidong Yang

PL Petrochina Company Limited: 1 patents #21 of 172Top 15%
Overall (2022): #186,345 of 548,613Top 35%
1
Patents 2022

Issued Patents 2022

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