Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10221611 | Window frame insulation method for constructing warm house | — | 2019-03-05 |
| 7591885 | Wet type air cleaner | — | 2009-09-22 |
| 7569102 | Wet type air cleaner | Seok Hee Lee | 2009-08-04 |
| 7513938 | Wet type air cleaner | — | 2009-04-07 |
| 7513939 | Wet type air cleaner | — | 2009-04-07 |
| 7387664 | Wet type air cleaner | — | 2008-06-17 |