Chengjun Huang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ledipasvir crystal form and preparation method thereof
- Patent number 10,294,219
- Issue date May 21, 2019
- SHANGHAI FOREFRONT PHARMACEUTICAL CO., LTD.
- Wei Li
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acetatic abiraterone trifluoroacetate and preparation method and ap...
- Patent number 9,522,934
- Issue date Dec 20, 2016
- Shanghai Cdymax Pharmaceuticals Co., Ltd
- Xiaoxia An
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION OF VELPATASVIR AND DERIVATIVE THEREOF
- Publication number 20210139493
- Publication date May 13, 2021
- SHANGHAI FOREFRONT PHARMACEUTICAL CO., LTD
- Shaojun FU
- C07 - ORGANIC CHEMISTRY
Information Patent Application
NOVEL LEDIPASVIR CRYSTAL FORM AND PREPARATION METHOD THEREOF
- Publication number 20180194752
- Publication date Jul 12, 2018
- SHANGHAI FOREFRONT PHARMACEUTICAL CO., LTD
- Wei LI
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
METHOD OF PREPARATION FOR LEDIPASVIR AND DERIVATIVE THEREOF, AND IN...
- Publication number 20180079744
- Publication date Mar 22, 2018
- Shanghai Forefront Pharmaceutical Co., Ltd
- Chengjun HUANG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ACETATIC ABIRATERONE TRIFLUOROACETATE AND PREPARATION METHOD AND AP...
- Publication number 20150133652
- Publication date May 14, 2015
- SHANGHAI CDYMAX PHARMACEUTICALS CO., LTD.
- Xiaoxia An
- C07 - ORGANIC CHEMISTRY