Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8931274 | Engine system based on turbo charger and fuel ratio improving method thereof | Donghee Han, Dongho Chu, YoonJoo Kim, Jongil Park, Hongjip Kim +1 more | 2015-01-13 |
| 8500417 | Motorized vacuum pump with sound absorbing unit | Donghee Han, Wootae Kim | 2013-08-06 |