Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162573 | Gear system | Changwoo SUNG, Deokkyu Lee | 2021-11-02 |
| 11131371 | Driving apparatus for electric vehicle | Joohang KANG, Youngchan AHN | 2021-09-28 |
| 10968986 | Electric vehicle | Changwoo SUNG, Yoonuk Kim | 2021-04-06 |