Yanfeng Wang

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Xinchang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process for isolation and purification of xanthophyll crystals from...
- Patent number 7,271,298
- Issue date Sep 18, 2007
- Zhe Jiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory
- Xinde Xu
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for isolation and purification of xanthophyll crystals from...
- Publication number 20070032683
- Publication date Feb 8, 2007
- Zhe Jiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory
- Xinde Xu
- C07 - ORGANIC CHEMISTRY