Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6939402 | Cement admixture having superior water-reducing properties and method for preparing the same | Byeong-Gil Choi, Kwang-Myung Park, Jong Keun SONG, Chan Young Lee, Hee Song +3 more | 2005-09-06 |