Xuefeng Sun

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for continuous downhole cooling of high-temperature drilling...
- Patent number 11,236,584
- Issue date Feb 1, 2022
- SOUTHWEST PETROLEUM UNIVERSITY
- Jie Zhang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dynamic simulation method of circulating temperature variation in R...
- Patent number 11,188,694
- Issue date Nov 30, 2021
- SOUTHWEST PETROLEUM UNIVERSITY
- Xin Li
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Micro azimuth-level detector based on micro electro-mechanical syst...
- Patent number 6,813,584
- Issue date Nov 2, 2004
- Tsinghua University
- Zhaoying Zhou
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
EXPERIMENTAL DEVICE AND METHOD FOR SOLUBILITY DETERMINATION OF METH...
- Publication number 20240353389
- Publication date Oct 24, 2024
- SOUTHWEST PETROLEUM UNIVERSITY
- Jie ZHANG
- G01 - MEASURING TESTING
Information Patent Application
Dynamic Simulation Method of Circulating Temperature Variation in R...
- Publication number 20210216689
- Publication date Jul 15, 2021
- SOUTHWEST PETROLEUM UNIVERSITY
- Xin Li
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Circulating system and a method for continuous downhole cooling of...
- Publication number 20210102441
- Publication date Apr 8, 2021
- SOUTHWEST PETROLEUM UNIVERSITY
- Jie Zhang
- E21 - EARTH DRILLING MINING
Information Patent Application
Micro azimuth-level detector based on micro electro-mechanical syst...
- Publication number 20020188416
- Publication date Dec 12, 2002
- Zhaoying Zhou
- G01 - MEASURING TESTING