Guoping Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Oil-based dispersing method of drag reduction polymers
- Patent number 7,592,379
- Issue date Sep 22, 2009
- PetroChina Company Limited
- Bing Liu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PERFLUORO PHOSPHATE-TYPE GAS PIPELINE DRAG-REDUCING AGENT AND METHO...
- Publication number 20160305612
- Publication date Oct 20, 2016
- Petrochina Company Limited
- Zhiheng ZHANG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MERCAPTOTRIAZOLE DRAG REDUCER FOR TRANSMISSION PIPELINE AND PREPARA...
- Publication number 20160297776
- Publication date Oct 13, 2016
- Petrochina Company Limited
- Guoping LI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Oil-based dispersing method of drag reduction polymers
- Publication number 20070004837
- Publication date Jan 4, 2007
- Petrochina Company Limited
- Bing Liu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...