Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491738 | 2-stage fluidized bed type fine iron ore reducing apparatus, and reducing method using the apparatus | Hang Goo Kim, Uoo Chang Jung, Nag-Joon Choi | 2002-12-10 |
| 6416566 | Process for the production of liquid pig iron or liquid steel pre-products | Werner Kepplinger, Felix Wallner, Johannes Schenk, Yong-Ha Kim, Moon Duk Park | 2002-07-09 |
| 6241801 | Method for treating particulate material in the fluidized bed method and vessel and plant for carrying out the method | Werner Kepplinger, Felix Wallner, Johannes Schenk, Franz Hauzenberger | 2001-06-05 |
| 6224819 | Fluidized bed type reducing system for reducing fine iron ore | Yong-Ha Kim, Hang Goo Kim | 2001-05-01 |
| 6086653 | Smelting-reduction apparatus and method for producing molten pig iron using the smelting reduction apparatus | Sang Hoon Joo, Min Young Cho | 2000-07-11 |
| 6030432 | Process for reducing ore fines and arrangement for carrying out the process | Werner Kepplinger, Felix Wallner, Johannes-Leopold Schnek, Udo Gennari, Yong-Ha Kim +1 more | 2000-02-29 |
| 5989309 | Method for injecting fine iron ore in smelting reducing process | Sang Hoon Joo, Sang-Deok Lee, Werner Kepplinger, Felix Wallner | 1999-11-23 |
| 5919281 | 2-stage fluidized bed furnace for pre-reducing fine iron ore and method for pre-reducing fine iron ore using the furnace | Dae-Gyu Park, Suk In Park | 1999-07-06 |
| 5897829 | Apparatus for reducing fine iron ore | Hang Goo Kim, Uoo Chang Chung, Yong-Ha Kim | 1999-04-27 |
| 5785733 | Fluidized bed type reduction apparatus for iron ore particles and method for reducing iron ore particles using the apparatus | Yong-Ha Kim, Bong Jin Jung, Hang Goo Kim, Franz Hauzenberger | 1998-07-28 |
| 5762681 | Fluidized bed type reduction apparatus for iron ores and method for reducing iron ores using the apparatus | Yong-Ha Kim, Hang Goo Kim, Bong Jin Jung, Uoo Chang Chung, Werner Kepplinger +2 more | 1998-06-09 |