Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525109 | Process of preparing polycarbonates using microwave | Kil-Yeong Choi, Jae-heung Lee, Young Chan Ko, Il Seok Choi, Cheol-Hyun Kim +1 more | 2003-02-25 |
| 6423812 | Process of preparing polycarbonates | Young Chan Ko, Il Seok Choi, Cheol-Hyun Kim, Seung Joo Kim, Kil-Yeong Choi +2 more | 2002-07-23 |
| 6232432 | Process for the preparation of polycarbonates | Kil-Yeong Choi, Jae-heung Lee, Sung-Goo Lee, Sang Hyun Park, Young Chan Ko +1 more | 2001-05-15 |