Issued Patents All Time
Showing 26–50 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9267402 | Multistage variable valve lift apparatus, system and engine | Jong Hyeok Choi, Young Hong Kwak, Byong Young Choi, Jin Kook Kong, Gee Wook Shin | 2016-02-23 |
| 9140147 | Multiple variable valve lift apparatus | Jei Choon Yang, Young Hong Kwak, Byong Young Choi, Jin Kook Kong, Gee Wook Shin | 2015-09-22 |
| 9140182 | Variable compression ratio control system | Yoonsik Woo, Jin Kook Kong, Ju Hun Lee, Eun Ho Lee, Dong-Seok Lee | 2015-09-22 |
| 9115652 | Oil control valve and variable valve lift system provided with the same | Byong Young Choi, Young Hong Kwak, Gee Wook Shin, Jin Kook Kong, Chang-Hoon Lee | 2015-08-25 |
| 9074499 | Multiple variable valve lift apparatus and engine provided with the same | Chang Ho Yang, Young Hong Kwak, Byong Young Choi, Jin Kook Kong, Gee Wook Shin | 2015-07-07 |
| 9057293 | Multiple variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Gee Wook Shin, Wootae Kim | 2015-06-16 |
| 9021994 | Variable compression ratio apparatus | Yoonsik Woo, Jin Kook Kong, Dong-Seok Lee, Eun Ho Lee | 2015-05-05 |
| 9010290 | Multiple variable valve lift apparatus | Byong Young Choi, Ki Wook SHIN, Jin Kook Kong | 2015-04-21 |
| 8910601 | Cylinder air volume difference adjuster and continuous variable valve lifter including the same | Byong Young Choi, Jin Kook Kong, Young Hong Kwak, Gee Wook Shin | 2014-12-16 |
| 8899195 | Electro-hydraulic variable valve lift apparatus | Byong Young Choi, Young Hong Kwak, Jin Kook Kong, Wonjun Lee | 2014-12-02 |
| 8807101 | Variable valve lift apparatus | Byong Young Choi, Gee Wook Shin, Sang Won Kim, Jin Kook Kong, Jin Soon Kim +1 more | 2014-08-19 |
| 8757112 | Variable compression ratio apparatus | Eun Ho Lee, Jin Kook Kong, Dong-Seok Lee, Yoonsik Woo | 2014-06-24 |
| 8733302 | Variable compression ratio apparatus | Yoonsik Woo, Jin Kook Kong, Dong-Seok Lee, Eun Ho Lee | 2014-05-27 |
| 8726861 | Variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Young Hong Kwak, Gee Wook Shin, Jei Choon Yang +1 more | 2014-05-20 |
| 8720395 | Variable compression ratio apparatus | Eun Ho Lee, Jin Kook Kong, Dong-Seok Lee, Yoonsik Woo | 2014-05-13 |
| 8667934 | Engine having compression ratio variable device | Yoonsik Woo, Jin Kook Kong, Dong-Seok Lee, Eun Ho Lee | 2014-03-11 |
| 8646422 | Electro-hydraulic variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Jin Soon Kim | 2014-02-11 |
| 8646420 | Variable compression ratio apparatus | Eun Ho Lee, Jin Kook Kong | 2014-02-11 |
| 8640661 | Continuous variable valve timing apparatus | Jin Kook Kong, Jin Soon Kim, Sang Won Kim | 2014-02-04 |
| 8616166 | Electric continuous variable valve timing apparatus | Jei Choon Yang, Byong Young Choi, Jin Kook Kong, Young Jin Won, Jin Soon Kim | 2013-12-31 |
| 8607751 | Electro-hydraulic variable valve lift system | Jei Choon Yang, Byong Young Choi, Young Hong Kwak, Wonjun Lee, Jin Kook Kong | 2013-12-17 |
| 8596234 | Electro-hydraulic variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Jin Soon Kim | 2013-12-03 |
| 8573168 | Hydraulic pressure valve apparatus | Jei Choon Yang, Chang Ho Yang, Byong Young Choi, Young Hong Kwak, Jin Kook Kong | 2013-11-05 |
| 8555829 | Variable compression ratio apparatus | Dong-Seok Lee, Jei Choon Yang, Chang Ho Yang, Eun Ho Lee, Yoonsik Woo +1 more | 2013-10-15 |
| 8499725 | Variable compression ratio apparatus | Dong-Seok Lee, Jei Choon Yang, Yen Wha Ryu, Eun Ho Lee, Young Hong Kwak +1 more | 2013-08-06 |