Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5803860 | Three mode stepless speed changing device | — | 1998-09-08 |
| 5245892 | Transmission of the farm tractor | Hyung-tai Kim | 1993-09-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5803860 | Three mode stepless speed changing device | — | 1998-09-08 |
| 5245892 | Transmission of the farm tractor | Hyung-tai Kim | 1993-09-21 |