Kwang D. Ok

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Camptothecin compounds and a method of preparation thereof
- Patent number 6,265,413
- Issue date Jul 24, 2001
- Chong Kun Dang Corp.
- Sang Sup Jew
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediates for the synthesis of camptothecin derivatives
- Patent number 6,177,568
- Issue date Jan 23, 2001
- Chong Kun Dang Corp.
- Sang Sup Jew
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
L-talopyranoside derivatives and process for the preparation of same
- Patent number 5,374,746
- Issue date Dec 20, 1994
- Dong-A Pharmaceutical Co., Ltd.
- Kwang D. Ok
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Anthracycline glycoside derivatives
- Patent number 5,220,001
- Issue date Jun 15, 1993
- Zaidan Hojim Biseibutsu Dong-A Pharm Co.
- Kwang D. Ok
- C07 - ORGANIC CHEMISTRY