Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12103821 | Elevator having function of removing dust adhered to object aboard | Gum Gee Lee, Hyung Seok Kim, Hakki Han | 2024-10-01 |
| 6241316 | Apparatus for adjusting the height of a swivel chair | Young San Jean, Baik H Sung, Jong Gyu Lee, Young Ki Yoon | 2001-06-05 |