Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10167750 | Variable valve duration apparatus | Donghoon Seok | 2019-01-01 |
| 10107155 | Valve timing control apparatus of internal combustion engine | Hong Wook Lee, Bonghoon Han, Hyung Ick Kim, Yoshihiko Yamada, Manabu Katayama +1 more | 2018-10-23 |