Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9169745 | Engine having continuously variable valve timing mechanism | Chulho Yu, Dongheon Park, Yoonho Cho, Il Joong Hwang, Dong Hoon Seok | 2015-10-27 |
| 9115651 | Method of controlling CVVT according to current control for oil control valve | Young-Joon Park, Chulho Yu, Yoonho Cho, Il Joong Hwang | 2015-08-25 |