Yongzeng XUE

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Sanhe Langfang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Integrated logging instrument for coring and sampling
- Patent number 11,905,829
- Issue date Feb 20, 2024
- China Oilfield Services Limited
- Tao Lu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sampling-by-pushing system and setting method thereof
- Patent number 11,072,981
- Issue date Jul 27, 2021
- CHINA OILFIELD SERVICES, LIMITED
- Minggao Zhou
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
INTEGRATED LOGGING INSTRUMENT FOR CORING AND SAMPLING
- Publication number 20220316290
- Publication date Oct 6, 2022
- China Oilfield Services Limited
- Tao LU
- E21 - EARTH DRILLING MINING
Information Patent Application
Sampling-by-Pushing System and Setting Method Thereof
- Publication number 20200355034
- Publication date Nov 12, 2020
- CHINA OILFIELD SERVICES, LIMITED
- Minggao ZHOU
- E21 - EARTH DRILLING MINING