DS

Depei Shi

CP China National Petroleum: 1 patents #97 of 316Top 35%
CL Cnpc Engineering Technology R&D Company Limited: 1 patents #74 of 150Top 50%
Overall (All Time): #2,646,648 of 4,157,543Top 65%
1
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Issued Patents All Time

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