Lingrong Kong

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Full-metal anti-high temperature cycloid downhole motor
- Patent number 11,525,443
- Issue date Dec 13, 2022
- China University of Geosciences (Beijing)
- Yu Wang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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
FULL-METAL ANTI-HIGH TEMPERATURE CYCLOID DOWNHOLE MOTOR
- Publication number 20220389819
- Publication date Dec 8, 2022
- China University of Geosciences (Beijing)
- Yu Wang
- E21 - EARTH DRILLING MINING