Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9145829 | Timing belt system for vehicle | Bong Whoa Jeong | 2015-09-29 |
| 9133742 | Oil filter system for vehicle | Kyu Sup Kim, Won Joo Roh, Bong Whoa Jeong | 2015-09-15 |
| 7987825 | Variable valve lift apparatus | — | 2011-08-02 |