YM

Yingwen Ma

CC China University Of Petroleum (East China): 1 patents #254 of 736Top 35%
📍 Shandong, CN: #981 of 2,138 inventorsTop 50%
Overall (All Time): #2,941,722 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9631454 Wellbore pressure control system and method for offshore well cementation stages Baojiang Sun, Xuerui Wang, Yonghai Gao 2017-04-25