ZJ

Zemin Ji

PL Petrochina Company Limited: 3 patents #75 of 890Top 9%
Overall (All Time): #1,415,085 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11428065 Borehole wall resistance increasing apparatus for improving energy utilization rate of injection gas Xinglong Chen, Qingxin Song, Zhidong Yang, Shanyan Zhang, Yulong Pu 2022-08-30
11344824 Ultrasonic microbubble generation method, apparatus and system Xinglong Chen, Hongwei Yu, Shi-Lin Li, Haishui Han 2022-05-31
11179683 Microbubble generation device and equipment Xinglong Chen, Jiazhong Wu, Haishui Han, Shi-Lin Li, Hongwei Yu 2021-11-23