Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787043 | Water purification system and method | Moon-Ki Cho | 2004-09-07 |
| 5051530 | Ester derivatives and process for production thereof | MoonHo Chang, HunYeong Koh, YongSeo Cho, Sangchul SHIM | 1991-09-24 |