JJ

Jun Jing

SU Southwest Petroleum University: 1 patents #21 of 78Top 30%
Overall (2019): #399,410 of 560,194Top 75%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10472891 Hydraulic gentle vibration speed-enhancing drilling tool Xiaohua Zhu 2019-11-12