Inventor · disambiguated record

Yingwen Ma

Also filed as: MA YINGWEN

1 granted patent·14 citations·filing 2016–2016

34Inventor score

Technology areasE21B

Files withUNIV CHINA PETROLEUM EAST CHINA1

Top patents by PatentIndex Score

1 record

0191US9631454B1Wellbore pressure control system and method for offshore well cementation stagesUNIV CHINA PETROLEUM EAST CHINA·Filed 2016·Granted Apr 25, 2017·14 cites·11 claims

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