Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8166596 | Construction method for girder in bridge, crane for pulling up girder, vehicle for carring girder, and girder used for the same | Man-Geun Yoon, Hyun-Yang Shin, Yeong-Seon Kim | 2012-05-01 |
| 8052408 | Two-way pre-stress system and bending device therefor | Man-Geun Yoon, Hyun-Yang Shin, Yeong-Seon Kim | 2011-11-08 |