Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9408424 | Filtering face-piece respirator having a face seal comprising a water-vapor-breathable layer | Jin Ho Lee, Tae Sub Kim | 2016-08-09 |
| 9027554 | Respirator having foam shaping layer with recessed regions surrounding air passageways | Jin Ho Lee, Jungchul Moon, Kangsoo Park | 2015-05-12 |
| D678508 | Filter cartridge intake profile | Dong-Il Choi, Kyoung Ho Lee, Jin Ho Lee, BongHyup Kang | 2013-03-19 |
| D677780 | Filter cartridge | Dong-Il Choi, Kyoung Ho Lee, Jin Ho Lee, BongHyup Kang | 2013-03-12 |
| D677781 | Filter cartridge louver | Dong-Il Choi, Kyoung Ho Lee, Jin Ho Lee, BongHyup Kang | 2013-03-12 |