Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10794308 | Apparatus and method for controlling deactivation of cylinders in engine | Ki Seon Sim, Myung-Sik Choi, Won Gyu Kim, Young Hong Kwak, Kyoung Seok Park | 2020-10-06 |
| 10260435 | Engine provided with CDA apparatus and water pump and method for controlling the same | — | 2019-04-16 |
| 10260438 | Cylinder de-activation control method and cylinder de-activation system | Won Gyu Kim | 2019-04-16 |
| 9816409 | Variable valve lift apparatus | Myungsik Choi, Won Gyu Kim, Gyu Han Hwang, Young Hong Kwak, Yoonsik Woo | 2017-11-14 |
| 9689282 | Variable valve lift apparatus | Myungsik Choi, Won Gyu Kim, Young Hong Kwak | 2017-06-27 |
| 9556763 | Variable valve lift apparatus | Young Hong Kwak, Won Gyu Kim, Gyu Han Hwang, Jin Hwa Kim, Myungsik Choi +1 more | 2017-01-31 |
| 9399932 | Variable valve device that varies lift amount of valve | Young Hong Kwak, Gyu Han Hwang, Jin Kook Kong, Won Gyu Kim, Myungsik Choi | 2016-07-26 |
| 9267402 | Multistage variable valve lift apparatus, system and engine | Soo Hyung Woo, Jong Hyeok Choi, Young Hong Kwak, Byong Young Choi, Jin Kook Kong | 2016-02-23 |
| 9140147 | Multiple variable valve lift apparatus | Soo Hyung Woo, Jei Choon Yang, Young Hong Kwak, Byong Young Choi, Jin Kook Kong | 2015-09-22 |
| 9115652 | Oil control valve and variable valve lift system provided with the same | Byong Young Choi, Young Hong Kwak, Jin Kook Kong, 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, Jin Kook Kong | 2015-07-07 |
| 9057293 | Multiple variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Soo Hyung Woo, Wootae Kim | 2015-06-16 |
| 8910601 | Cylinder air volume difference adjuster and continuous variable valve lifter including the same | Byong Young Choi, Jin Kook Kong, Young Hong Kwak, Soo Hyung Woo | 2014-12-16 |
| 8807101 | Variable valve lift apparatus | Byong Young Choi, Sang Won Kim, Jin Kook Kong, Soo Hyung Woo, Jin Soon Kim +1 more | 2014-08-19 |
| 8726861 | Variable valve lift apparatus | Byong Young Choi, Jin Kook Kong, Soo Hyung Woo, Young Hong Kwak, Jei Choon Yang +1 more | 2014-05-20 |
| 8464677 | Variable valve lift apparatus | Byong Young Choi, Young Hong Kwak, Yoonsik Woo, Jin Kook Kong, Soo Hyung Woo | 2013-06-18 |
| 8448618 | Variable valve lift apparatus that is equipped with swing arm | Ju Hun Lee, Jei Choon Yang, Jin Kook Kong, Soo Hyung Woo, Jin Soon Kim | 2013-05-28 |
| 8413620 | Hydraulic orifice | Yoonsik Woo, Jin Kook Kong, Soo Hyung Woo | 2013-04-09 |
| 8336513 | Variable tappet | Ju Hun Lee, Jin Kook Kong, Soo Hyung Woo, Jin Soon Kim | 2012-12-25 |
| 8312852 | Variable tappet | Jei Choon Yang, Sang Won Kim, Jin Kook Kong, Soo Hyung Woo, Byong Young Choi +2 more | 2012-11-20 |