Xiaofei QIN

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Sanhe, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for measuring composition and property of formati...
- Patent number 12,188,919
- Issue date Jan 7, 2025
- China Oilfield Services Limited
- Youxiang Zuo
- G06 - COMPUTING CALCULATING COUNTING
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
Connecting structure for drill collar of logging while drilling ins...
- Patent number 11,624,244
- Issue date Apr 11, 2023
- CHINA OILFIELD SERVICES, LIMITED
- Yongren Feng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pup joint for releasing sidewall contact of stratigraphic test devi...
- Patent number 9,982,816
- Issue date May 29, 2018
- China National Offshore Oil Corporation
- Xiaofei Qin
- 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
METHOD AND SYSTEM FOR MEASURING COMPOSITION AND PROPERTY OF FORMATI...
- Publication number 20220155275
- Publication date May 19, 2022
- China Oilfield Services Limited
- Youxiang ZUO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Connecting Structure for Drill Collar of Logging While Drilling Ins...
- Publication number 20210277723
- Publication date Sep 9, 2021
- Yongren FENG
- E21 - EARTH DRILLING MINING
Information Patent Application
Pup Joint for Releasing Sidewall Contact of Stratigraphic Test Devi...
- Publication number 20150316183
- Publication date Nov 5, 2015
- CHINA NATIONAL OFFSHORE OIL CORP
- Xiaofei QIN
- E21 - EARTH DRILLING MINING