Meixia ZHANG

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Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation and purification method for cationic quaternary ammoniu...
- Patent number 11,919,976
- Issue date Mar 5, 2024
- SHANDONG FOCUSFREDA BIOTECH CO., LTD
- Jinmao You
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION METHOD FOR ACETYLATED SODIUM HYALURONATE
- Publication number 20230295351
- Publication date Sep 21, 2023
- SHANDONG FOCUSFREDA BIOTECH CO., LTD
- Lei LIU
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...