Issued Patents 2003
Showing 1–2 of 2 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, Sung Chang Hong, Tae-Sung Park +2 more | 2003-11-04 |
| 6618887 | Drawer-type washing machine and process of washing laundry using the same | Hyoun Jin Kim, Young Hwan Park, Yong Chul Kim, Si Moon Jeon, Byung Keol Choi | 2003-09-16 |