Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641790 | Method for removing nitrogen oxides using natural manganese ores | Sung Ho Hong, Hyun Young Chang, Seok Joo Hong, Dong Won Kim, Sung Chang Hong +2 more | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641790 | Method for removing nitrogen oxides using natural manganese ores | Sung Ho Hong, Hyun Young Chang, Seok Joo Hong, Dong Won Kim, Sung Chang Hong +2 more | 2003-11-04 |