Wenlong NIU

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Qingdao, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetic reversal downhole pressure intensifier
- Patent number 12,276,191
- Issue date Apr 15, 2025
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Hualin Liao
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ELECTROMAGNETIC REVERSAL DOWNHOLE PRESSURE INTENSIFIER
- Publication number 20250043635
- Publication date Feb 6, 2025
- China University of Petroleum (East China)
- Hualin LIAO
- E21 - EARTH DRILLING MINING
Information Patent Application
NEAR-BIT MULTI-PARAMETER DOWNHOLE MEASUREMENT AND CONTROL SYSTEM WH...
- Publication number 20230323769
- Publication date Oct 12, 2023
- China University of Petroleum (East China)
- Hualin LIAO
- E21 - EARTH DRILLING MINING