Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9074499 | Multiple variable valve lift apparatus and engine provided with the same | Soo Hyung Woo, Young Hong Kwak, Byong Young Choi, Jin Kook Kong, Gee Wook Shin | 2015-07-07 |
| 8726861 | Variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Soo Hyung Woo, Young Hong Kwak, Gee Wook Shin +1 more | 2014-05-20 |
| 8573168 | Hydraulic pressure valve apparatus | Jei Choon Yang, Byong Young Choi, Young Hong Kwak, Jin Kook Kong, Soo Hyung Woo | 2013-11-05 |
| 8555829 | Variable compression ratio apparatus | Dong-Seok Lee, Jei Choon Yang, Eun Ho Lee, Yoonsik Woo, Jin Kook Kong +1 more | 2013-10-15 |