DS

Depei Shi

CP China National Petroleum: 1 patents #1 of 28Top 4%
CL Cnpc Engineering Technology R&D Company Limited: 1 patents #1 of 18Top 6%
Overall (2022): #474,564 of 548,613Top 90%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11293254 Expansion tool assembly for expandable tubular Quanli Zhang, Binggui Xu, Hongwei Yin, Huijuan Guo, Guodong Zhan +12 more 2022-04-05