Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6177007 | High efficiency apparatus for treating nitrogen and phosphorous contained in sewage | Eui Shin Lee, Yun Seok Chang, Myung Gyun Park, Yong Rok Heo | 2001-01-23 |
| 5935299 | Apparatus and method of spray dryer/bag filter using circulating shield air | Eui-Sin Lee, Byung Hwan Kim, Gi Ho Park, Hee Jin In | 1999-08-10 |