Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6596521 | Method for manufacturing organic acid by high-efficiency continuous fermentation | Ho Nam Chang, Yong Keun Chang, Woo-Gi Lee, Pyung Cheon Lee, Ik Keun Yoo +1 more | 2003-07-22 |
| 6406628 | Method for removing nitrogen and phosphorous in wastewater | Ho Nam Chang, Seong Jin Lim, Woo-Gi Lee, Dong-Won Choi | 2002-06-18 |