Huahua Yu

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Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Low molecular weight chitosan oligosaccharides and its preparation...
- Patent number 7,648,969
- Issue date Jan 19, 2010
- Institute of Oceanology Chinese Academy of Sciences
- Pengcheng Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Quaternized Carboxymethyl Chitosan Derivatives and Preparation Meth...
- Publication number 20100168407
- Publication date Jul 1, 2010
- INSTITUTE OF OCEANOLOGY CHINESE ACADEMY OF SCIENCES
- Pengcheng Li
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Low molecular weight chitosan oligosaccharides and its preparation...
- Publication number 20070089978
- Publication date Apr 26, 2007
- INSTITUTE OF OCEANOLOGY CHINESE ACADEMY OF SCIENCES
- Pengcheng Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...