Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175766 | Apparatus and method for performing tertiary treatment of sewage based on porous filtering media | Young Sug Kim, Moon-Hyoung Lee, Chung-Hee Chang, Chai-Sung Gee | 2007-02-13 |
| 6051115 | Adhesive strength increasing method for metal thin film | Seok-Keun Koh, Hyung Jin Jung, Won Kook Choi | 2000-04-18 |
| 5855683 | Thin film deposition apparatus | Seok-Keun Koh, Hyung Jin Jung, Won Kook Choi | 1999-01-05 |