Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7638653 | Method of preparing phosphonium compound for cyclic olefin polymerization | Young-Chul Won, Young-Whan Park, Sung-Ho Chun, Dai-Seung Choi | 2009-12-29 |
SY
Sungcheol Yoon
Overall (All Time): #3,344,548 of 4,157,543Top 85%
1
Patents All Time