Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4661468 | Catalyst for treatment and cleaning of exhaust fumes | Byong-Gon Lee, Ju-Myung Song | 1987-04-28 |
| 4358629 | Method of producing acetylene from coal | — | 1982-11-09 |
| 4235605 | Synthesizing gas from coal via synergetic reactions with steam and sulfur | — | 1980-11-25 |