Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8673228 | System for reducing environmental pollutants | Byung Chan Lee, Kwang Hwan Lee | 2014-03-18 |
| 8388897 | System for reducing carbon compound of heat engine | Byung Chan Lee | 2013-03-05 |