BC

Bihai Cheng

PL Petrochina Company Limited: 1 patents #264 of 890Top 30%
Overall (All Time): #2,789,957 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10641723 Method and device for detecting damage rate of an inner coating of a downhole oil casing Qiongwei Li, Zewei Tang, Jianqiang Xue, Caili Fu, Huili YANG +4 more 2020-05-05