Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7432473 | Electrofusion machine with improved functions | Nam Hoon Lee | 2008-10-07 |
| 7180761 | Constant voltage control apparatus capable of reducing feedback lines | Nam Hoon Lee | 2007-02-20 |