Jun Xue

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Changchun City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Forced cooling circulation system for drilling mud
- Patent number 9,062,509
- Issue date Jun 23, 2015
- JILIN UNIVERSITY
- Youhong Sun
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sampling method and sampler for gas hydrates by hole bottom freezing
- Patent number 8,074,739
- Issue date Dec 13, 2011
- Jilin University
- Youhong Sun
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
FORCED COOLING CIRCULATION SYSTEM FOR DRILLING MUD
- Publication number 20120297801
- Publication date Nov 29, 2012
- Youhong Sun
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
SAMPLING METHOD AND SAMPLER FOR GAS HYDRATES BY HOLE BOTTOM FREEZING
- Publication number 20090229382
- Publication date Sep 17, 2009
- Jilin University
- Youhong Sun
- E21 - EARTH DRILLING MINING