Baolin LIU

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Downhole power drilling tool having multi-stage dual plunger eccent...
- Patent number 11,598,151
- Issue date Mar 7, 2023
- China University of Geosciences (Beijing)
- Yu Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Full-metal dynamic-sealed concentrically-centered downhole displace...
- Patent number 11,459,827
- Issue date Oct 4, 2022
- China University of Geosciences (Beijing)
- Yu Wang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ALL-METAL DOWNHOLE POWER DRILLING TOOL BASED ON MULTI-STAGE DUAL PL...
- Publication number 20210285289
- Publication date Sep 16, 2021
- China University of Geosciences (Beijing)
- Yu WANG
- E21 - EARTH DRILLING MINING