Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085359 | Swirl chamber-type diesel engine | Chang Kyu LEE | 2021-08-10 |
| 11085360 | Swirl chamber-type diesel engine | Chang Kyu LEE | 2021-08-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085359 | Swirl chamber-type diesel engine | Chang Kyu LEE | 2021-08-10 |
| 11085360 | Swirl chamber-type diesel engine | Chang Kyu LEE | 2021-08-10 |