Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7259005 | Microorganism having ability to convert sterol into androst-4-ene-3, 17-dione/androsta-1,4-diene-3, 17-dione and preparation method and use thereof | Seung-Kwon Noh, Won-Tae Yoon, Kyung-Moon Park, Sang Ok Park | 2007-08-21 |
| 7241589 | Method for preparation of androst-4-ene-3,17-dione and androsta-1,4-diene-3,17-dione | Seung-Kwon Noh, Won-Tae Yoon, Kyung-Moon Park, Sang Ok Park | 2007-07-10 |
| 5698104 | Purification process for hirudin using affinity chromatography | Sang Ki Rhee, Bong Hyun Chung, Eui-Sung Choi, Jung Hoon Sohn, Deok-Joong Youn +1 more | 1997-12-16 |