Gha Seung Park

Person

Yongin-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Method for preparing entecavir and intermediate used therein
- Patent number 8,569,491
- Issue date Oct 29, 2013
- Hanmi Science Co., Ltd
- Jae Heon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediate and process for preparing entecavir using same
- Patent number 8,569,490
- Issue date Oct 29, 2013
- Hanmi Science Co., Ltd
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Methods for preparing capecitabine and beta-anomer-rich trialkyl ca...
- Patent number 8,097,706
- Issue date Jan 17, 2012
- Hammi Holdings Co., Ltd
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-α-halo-2,2-difluoro-2-deoxy-D-ribofuranose derivatives and proces...
- Patent number 7,858,761
- Issue date Dec 28, 2010
- Hanmi Pharm. Co., Ltd.
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the preparation of 2′-deoxy-2′,2′-difluorocytidine
- Patent number 7,799,907
- Issue date Sep 21, 2010
- Hanmi Pharm. Co., Ltd.
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the preparation of D-erythro-2,2-difluoro-2-deoxy-1-oxor...
- Patent number 7,638,642
- Issue date Dec 29, 2009
- Hanmi Pharm, Co., Ltd
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crystalline acid salts of cefdinir and process for preparing cefdin...
- Patent number 7,157,576
- Issue date Jan 2, 2007
- Hanmi Pharm. Co., Ltd.
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the selective preparation of 3-(z) propenyl-cephem comp...
- Patent number 7,112,672
- Issue date Sep 26, 2006
- Hanmi Pharm. Co., Ltd.
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the selective preparation of 3-oxo-4-aza-5α-androstane c...
- Patent number 7,084,274
- Issue date Aug 1, 2006
- Hanmi Pharm. Co., Ltd.
- Young-Ho Moon
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pharmaceutical composition comprising crystalline sibutramine metha...
- Patent number 6,900,245
- Issue date May 31, 2005
- Hanmi Pharm. Co., Ltd.
- Jae-Heon Lee
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of preparing highly pure cefpodoxime proxetil
- Patent number 6,639,068
- Issue date Oct 28, 2003
- Hanmi Pharm. Co., Ltd.
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 7-amino-3-methoxymethyl-3-cephem-4-carboxylic...
- Patent number 6,620,930
- Issue date Sep 16, 2003
- Hanmi Pharm. Co., Ltd.
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
NOVEL METHOD FOR PREPARING ENTECAVIR AND INTERMEDIATE USED THEREIN
- Publication number 20120202998
- Publication date Aug 9, 2012
- HANMI HOLDINGS CO., LTD
- Jae Heon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
NOVEL INTERMEDIATE AND PROCESS FOR PREPARING ENTECAVIR USING SAME
- Publication number 20110251387
- Publication date Oct 13, 2011
- HANMI HOLDINGS CO., LTD
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHODS FOR PREPARING CAPECITABINE AND BETA-ANOMER-RICH TRIALKYL CA...
- Publication number 20100249395
- Publication date Sep 30, 2010
- HANMI PHARM. CO., LTD.
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the Preparation of D-Erythro-2,2-Difluoro-2-Deoxy-1-Oxor...
- Publication number 20080058509
- Publication date Mar 6, 2008
- HANMI PHARM, CO., LTD.
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the Preparation of 2'-Deoxy-2',2'-Difluorocytidine
- Publication number 20070249818
- Publication date Oct 25, 2007
- Hanmi Pharm. Co.,Ltd
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
1-Alpha-Halo-2,2-Difluoro-2-Deoxy-D-Ribofuranose Derivatives and Pr...
- Publication number 20070238865
- Publication date Oct 11, 2007
- Hanmi Pharm. Co., Ltd.
- Jaeheon Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the selective preparation of 3-oxo-4-aza-5a androstane c...
- Publication number 20060019979
- Publication date Jan 26, 2006
- Young-Ho Moon
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Crystalline acid salts of cefdinir and process for preparing cefdin...
- Publication number 20040210049
- Publication date Oct 21, 2004
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the selective preparation of 3-(z) propenyl-cephem comp...
- Publication number 20040132992
- Publication date Jul 8, 2004
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Pharmaceutical composition comprising crystalline sibutramine metha...
- Publication number 20040068018
- Publication date Apr 8, 2004
- Jae-Heon Lee
- C30 - CRYSTAL GROWTH
Information Patent Application
Method of preparing cephalosporins using 4-hydroxyphenylglycine der...
- Publication number 20020120136
- Publication date Aug 29, 2002
- Gwan-Sun Lee
- C07 - ORGANIC CHEMISTRY

Gha Seung Park

Person

Patents Grantslast 30 patents

Method for preparing entecavir and intermediate used therein

Intermediate and process for preparing entecavir using same

Methods for preparing capecitabine and beta-anomer-rich trialkyl ca...

1-α-halo-2,2-difluoro-2-deoxy-D-ribofuranose derivatives and proces...

Method for the preparation of 2′-deoxy-2′,2′-difluorocytidine

Method for the preparation of D-erythro-2,2-difluoro-2-deoxy-1-oxor...

Crystalline acid salts of cefdinir and process for preparing cefdin...

Process for the selective preparation of 3-(z) propenyl-cephem comp...

Method for the selective preparation of 3-oxo-4-aza-5α-androstane c...

Pharmaceutical composition comprising crystalline sibutramine metha...

Method of preparing highly pure cefpodoxime proxetil

Process for preparing 7-amino-3-methoxymethyl-3-cephem-4-carboxylic...

Patents Applicationslast 30 patents

NOVEL METHOD FOR PREPARING ENTECAVIR AND INTERMEDIATE USED THEREIN

NOVEL INTERMEDIATE AND PROCESS FOR PREPARING ENTECAVIR USING SAME

METHODS FOR PREPARING CAPECITABINE AND BETA-ANOMER-RICH TRIALKYL CA...

Method for the Preparation of D-Erythro-2,2-Difluoro-2-Deoxy-1-Oxor...

Method for the Preparation of 2'-Deoxy-2',2'-Difluorocytidine

1-Alpha-Halo-2,2-Difluoro-2-Deoxy-D-Ribofuranose Derivatives and Pr...

Method for the selective preparation of 3-oxo-4-aza-5a androstane c...

Crystalline acid salts of cefdinir and process for preparing cefdin...

Process for the selective preparation of 3-(z) propenyl-cephem comp...

Pharmaceutical composition comprising crystalline sibutramine metha...

Method of preparing cephalosporins using 4-hydroxyphenylglycine der...