Zhoujun Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Composition and use therof, oil-based drilling fluid and a method f...
- Patent number 10,150,903
- Issue date Dec 11, 2018
- China Petroleum and Chemical Corporation
- Yongxue Lin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITION AND USE THEREOF, OIL-BASED DRILLING FLUID AND A METHOD...
- Publication number 20170009121
- Publication date Jan 12, 2017
- China Petroleum and Chemical Corporation
- Yongxue LIN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MODIFIED STARCH, PREPARATION METHOD AND USE OF THE SAME, AND DRILLI...
- Publication number 20140186626
- Publication date Jul 3, 2014
- SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
- Zhifa WANG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...