Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10032594 | High efficiency hollow cathode and cathode system applying same | Wonho Choe, Youbong Lim, Holak Kim, Jooyoung Park | 2018-07-24 |
| 8910747 | Tail pipe assembly for vehicle | Sang Il Lee, Dea Gil Hwang, Jay Yon Jo | 2014-12-16 |
| 8904771 | Exhaust heat recovery apparatus for vehicle | Jong Seung Won, Jaesan Kim, Sung-Soo Chae, Jin-Yong Park, Jong-Yun Moon +1 more | 2014-12-09 |
| 7669694 | Muffler for vehicle | — | 2010-03-02 |