Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897829 | Apparatus for reducing fine iron ore | Hang Goo Kim, Il Ock Lee, Yong-Ha Kim | 1999-04-27 |
| 5762681 | Fluidized bed type reduction apparatus for iron ores and method for reducing iron ores using the apparatus | Il Ock Lee, Yong-Ha Kim, Hang Goo Kim, Bong Jin Jung, Werner Kepplinger +2 more | 1998-06-09 |