Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9556948 | Alternator damper pulley for vehicle | — | 2017-01-31 |
| 9291236 | Structure of engine | Sung Kwang Kim, Ahn Hee Lee | 2016-03-22 |
| 8549989 | Piston apparatus for engine | Byungcheol Lee | 2013-10-08 |
| 8127736 | Balancing assembly of an engine | Byung Chul Lee, Soo-Hong Lee | 2012-03-06 |