Hongjun Huang

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Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing vitamin A ester
- Patent number 6,727,381
- Issue date Apr 27, 2004
- Zhejiang Medicine Co., Ltd., Xinchang Pharmaceutical Factory
- Runpu Shen
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing vitamin a ester
- Publication number 20020151742
- Publication date Oct 17, 2002
- Runpu Shen
- C07 - ORGANIC CHEMISTRY