Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11415090 | Intake apparatus for internal combustion engines | Hyong Do Chung, Sang-Jun Ahn | 2022-08-16 |
| 10699693 | Sound generator for vehicle | Hyong Do Chung, Sang-Jun Ahn | 2020-06-30 |
| 10316806 | Apparatus for reducing fuel evaporation gas using closeable path structure | Chul-Kyu Kwack | 2019-06-11 |
| 9464608 | Air cleaner for vehicles | Cheong Yong Cho, Byeong Kook Han, Sang-Cheol Baek | 2016-10-11 |