Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11851559 | BCDA-based semi-alicyclic homo- or co-polyimide membrane materials for gas separation and the preparation method thereof | Jeong Hoon Kim, Bong Jun CHANG, Simon MoonGeun Jung, Su Young Moon, Chae Young Park | 2023-12-26 |
| 9501770 | Electronic money charging service system, electronic money charging server and charging method thereof | Wonjun Lee, Seungjin Choi, Dongphil Lim, Hongkeun Ji, Dohyun Jang +1 more | 2016-11-22 |