Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11480076 | Compression release type engine brake | Woong Na | 2022-10-25 |
| 11391224 | Compression-release type engine brake | Won Seok Lee | 2022-07-19 |
| 11359524 | Compression release type engine brake | Woong Na | 2022-06-14 |
| 11255230 | Socket module of compression release type engine brake and operating method of engine brake using thereof | — | 2022-02-22 |
| 11047271 | Socket module of compression release type engine brake and operating method of engine brake using thereof | Dong Hyuk Choi | 2021-06-29 |
| 11047471 | Hydraulic type scissors gear of vehicle engine | — | 2021-06-29 |
| 10968997 | Anti-backlash structure for scissors gear | — | 2021-04-06 |
| 10746061 | Hydraulic type scissors gear | — | 2020-08-18 |
| 9840949 | Valve switching apparatus | You Sang Son | 2017-12-12 |
| 9828890 | Valve opening and closing apparatus | Min-Hui Yu, You Sang Son, Seock Joong Yoon | 2017-11-28 |
| 9822675 | Valve opening and closing apparatus | Min-Hui Yu, You Sang Son, Seock Joong Yoon | 2017-11-21 |
| 9528398 | Variable valve lift apparatus | Seock Joong Yoon | 2016-12-27 |
| 9057291 | Variable valve lift device and valve apparatus for vehicle engine using the same | Gi Ra Lee | 2015-06-16 |
| 8240278 | Engine brake and engine provided with the same | Yong Wook Yu | 2012-08-14 |