Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8915227 | Spark plug of an internal combustion engine | — | 2014-12-23 |
| 8127741 | Ignition plugs for internal combustion engine | Myung Seok Jie | 2012-03-06 |
| 7628130 | Ignition spark plug | — | 2009-12-08 |