Youn-Ja Kwon

Follow

Person

Kyunggi-do, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Retinoid derivatives and methods for producing said compounds and a...
- Patent number 7,166,744
- Issue date Jan 23, 2007
- Chebigen Co., Ltd.
- Hong-Sig Sin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Retinol derivatives, the method of preparations and the uses thereof
- Patent number 7,030,265
- Issue date Apr 18, 2006
- Chebigen, Inc.
- Hong-Sig Sin
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Retinol derivatives, the method of preparations and the uses thereof
- Publication number 20040023888
- Publication date Feb 5, 2004
- Hong-Sig Sin
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Novel retinoid derivatives and methods for producing said compounds...
- Publication number 20030171339
- Publication date Sep 11, 2003
- Hong-Sig Sin
- C07 - ORGANIC CHEMISTRY