Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11773021 | Concrete vacuum tube segment for hyper-speed transportation system using ultra-high performance concrete (UHPC), and manufacturing method thereof | Gum Sung Ryu, Gi Hong AN, Byung-Suk Kim, Jae Joon SONG, Kyung Taek Koh +1 more | 2023-10-03 |
| 11472445 | Crack repair material of concrete vacuum tube segment using ultra-high performance concrete (UHPC) for hyper-speed transportation system, and crack repairing method for the same | Gum Sung Ryu, Byung-Suk Kim, Kyung Taek Koh, Jae Joon SONG, Jong Dae Baek +1 more | 2022-10-18 |