CH

Changming He

SC Sichuan Xingzhi Zhihui Intellectual Property Operation Co.: 1 patents #2 of 6Top 35%
Overall (All Time): #2,852,136 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
10260320 Horizontal well completion tubing string capable of achieving sublevel mining — 2019-04-16