Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7662210 | Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same | Young Chul KWON, Young Do Park, Hak-Dong Kim | 2010-02-16 |
| 5449143 | Air vent control apparatus | — | 1995-09-12 |