Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6146449 | Reusable canister for a gas mask | Hoo-Kun Lee, Seong Won Park, Hyun Soo Park | 2000-11-14 |
| 5792720 | Method and apparatus for manufacturing TEDA-impregnated active carbon in fluidized bed type absorbing tower by generating TEDA vapor by means of hot air | Hoo-Kun Lee | 1998-08-11 |