Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790347 | Batch style wastewater treatment apparatus using biological filtering process and wastewater treatment method using the same | Jae Jin Lee, Gyung-Hae Aohh, Jong Bok Park | 2004-09-14 |