Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9976781 | Air-conditioning and heating system for passenger boarding bridge and control system therefor | Hee Hyeong Cho, Won Lae Lim, Sang Ju Roh | 2018-05-22 |
| 9946556 | Multilingual information guidance system and device | Sang Ho Choi | 2018-04-17 |