Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10710445 | Powertrain for hybrid vehicle | Yeon Min Cheong | 2020-07-14 |
| 9556763 | Variable valve lift apparatus | Young Hong Kwak, Won Gyu Kim, Gyu Han Hwang, Jin Hwa Kim, Gee Wook Shin +1 more | 2017-01-31 |
| 9399932 | Variable valve device that varies lift amount of valve | Young Hong Kwak, Gyu Han Hwang, Gee Wook Shin, Won Gyu Kim, Myungsik Choi | 2016-07-26 |
| 9359945 | Variable compression ratio apparatus | Eun Ho Lee, Dong-Seok Lee, Soo Hyung Woo, Yoonsik Woo | 2016-06-07 |
| 9267402 | Multistage variable valve lift apparatus, system and engine | Soo Hyung Woo, Jong Hyeok Choi, Young Hong Kwak, Byong Young Choi, Gee Wook Shin | 2016-02-23 |
| 9140182 | Variable compression ratio control system | Yoonsik Woo, Ju Hun Lee, Eun Ho Lee, Dong-Seok Lee, Soo Hyung Woo | 2015-09-22 |
| 9140147 | Multiple variable valve lift apparatus | Soo Hyung Woo, Jei Choon Yang, Young Hong Kwak, Byong Young Choi, Gee Wook Shin | 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, Soo Hyung Woo, Chang-Hoon Lee | 2015-08-25 |
| 9074499 | Multiple variable valve lift apparatus and engine provided with the same | Soo Hyung Woo, Chang Ho Yang, Young Hong Kwak, Byong Young Choi, Gee Wook Shin | 2015-07-07 |
| 9057293 | Multiple variable valve lift apparatus | Byong Young Choi, Gee Wook Shin, Soo Hyung Woo, Wootae Kim | 2015-06-16 |
| 9021994 | Variable compression ratio apparatus | Yoonsik Woo, Dong-Seok Lee, Eun Ho Lee, Soo Hyung Woo | 2015-05-05 |
| 9010290 | Multiple variable valve lift apparatus | Byong Young Choi, Ki Wook SHIN, Soo Hyung Woo | 2015-04-21 |
| 8910601 | Cylinder air volume difference adjuster and continuous variable valve lifter including the same | Byong Young Choi, Young Hong Kwak, Soo Hyung Woo, Gee Wook Shin | 2014-12-16 |
| 8899195 | Electro-hydraulic variable valve lift apparatus | Soo Hyung Woo, Byong Young Choi, Young Hong Kwak, Wonjun Lee | 2014-12-02 |
| 8807101 | Variable valve lift apparatus | Byong Young Choi, Gee Wook Shin, Sang Won Kim, Soo Hyung Woo, Jin Soon Kim +1 more | 2014-08-19 |
| 8757112 | Variable compression ratio apparatus | Eun Ho Lee, Dong-Seok Lee, Soo Hyung Woo, Yoonsik Woo | 2014-06-24 |
| 8733302 | Variable compression ratio apparatus | Yoonsik Woo, Dong-Seok Lee, Eun Ho Lee, Soo Hyung Woo | 2014-05-27 |
| 8726861 | Variable valve lift apparatus | Byong Young Choi, Soo Hyung Woo, Young Hong Kwak, Gee Wook Shin, Jei Choon Yang +1 more | 2014-05-20 |
| 8720395 | Variable compression ratio apparatus | Eun Ho Lee, Dong-Seok Lee, Soo Hyung Woo, Yoonsik Woo | 2014-05-13 |
| 8667934 | Engine having compression ratio variable device | Yoonsik Woo, Dong-Seok Lee, Eun Ho Lee, Soo Hyung Woo | 2014-03-11 |
| 8646422 | Electro-hydraulic variable valve lift apparatus | Byong Young Choi, Soo Hyung Woo, Jin Soon Kim | 2014-02-11 |
| 8646420 | Variable compression ratio apparatus | Eun Ho Lee, Soo Hyung Woo | 2014-02-11 |
| 8640661 | Continuous variable valve timing apparatus | Soo Hyung Woo, Jin Soon Kim, Sang Won Kim | 2014-02-04 |
| 8616166 | Electric continuous variable valve timing apparatus | Jei Choon Yang, Byong Young Choi, Soo Hyung Woo, 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, Soo Hyung Woo | 2013-12-17 |