Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11857339 | Headgear-type device for hazardous air quality warning and air quality improvement | Jae Hong Lee, Soon Wi Kim, Won-Sik Lee, Hyun-Sik Lee, Na Young LEE | 2024-01-02 |