Youn Ha Lee

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Kyungkeedo, KR

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Patents Grantslast 30 patents

Information Patent Grant
4,5-diaminopyrimidine derivatives and a method for the preparation...
- Patent number 6,172,227
- Issue date Jan 9, 2001
- Cheil Jedang Corporation
- Myung Xik Xiang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cathecol derivatives and a method for the preparation thereof and a...
- Patent number 6,103,729
- Issue date Aug 15, 2000
- Cheil Jedang Corp.
- Chung Keun Rhee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxazolidinone derivatives and a method for the preparation thereof...
- Patent number 5,929,083
- Issue date Jul 27, 1999
- Cheil Jedang Corporation
- Yeo Hong Yoon
- C07 - ORGANIC CHEMISTRY