Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11130093 | Oxygen supplying apparatus | Hyeon Seong KIM, Jee Soo KWAK, Kang Han LEE, Myeong Gu Kim | 2021-09-28 |
| 10980964 | Mask-type nasal cannula | Tae-Soo Lee, Seung Hyun Ryu, Bong Kwan Son, Sung Hun Ha, Dong Min Shin +1 more | 2021-04-20 |