Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780938 | Reactor alloy of syndiotactic polystyrene having high impact resistance | Sung-Cheol Yoon, Xuequan Zhang, Jae Gon Lim, Young Sub Lee | 2004-08-24 |
| 6767965 | Method of preparing monomer-grafted syndiotactic polystyrene with polarity | Xuequan Zhang, Jae Gon Lim, Jung Hyun Baik | 2004-07-27 |
| 6678280 | Voice packet transmission control method in gateway system and device therefor | Man-soo Jeong | 2004-01-13 |