Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11517058 | Head cradle including a head band member having excellent flexibility | Kyung Sun Choi, Jongtae Kim, Inkyu Park | 2022-12-06 |
| 10716961 | Head band member for wearing respirator mask and head cradle including same | — | 2020-07-21 |
| 10702024 | Buckle for connecting strap and respirator harness including the same | — | 2020-07-07 |
| 9027554 | Respirator having foam shaping layer with recessed regions surrounding air passageways | Jin Ho Lee, Kangsoo Park, Dong-Sun Noh | 2015-05-12 |
| D721169 | Respirator grill ribs | Young Jun Kim, Hyoungsun Park, Kangsoo Park | 2015-01-13 |