Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10465593 | Coolant control valve | Hyun Wook Ryu, Byung Chul Lee, Seok Jun Yoon | 2019-11-05 |
| 10107160 | Flow accelerating ventilation type head cover and engine thereby | Seok Jun Yoon, Hyun Wook Ryu, Byung Chul Lee | 2018-10-23 |