Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6156263 | Molten steel smelting apparatus for producing ultra-low carbon steel | Sang Bok An, Dae Saeng Kim, Chang Hee Yim, Byeong Og You, Hyeon Soo CHOI +2 more | 2000-12-05 |