Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10443658 | Propeller shaft with locking device | Won Jun Choi, Jang Ho Kim | 2019-10-15 |
| 10422371 | Hybrid propeller shaft for vehicle | Sang Jae Yoon, Chi Hoon Choi, Sang Yoon Park, Dong-Jun Lee, Jeong Min Cho | 2019-09-24 |