Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750297 | Artificial pigment and method for preparing the same | Seung Uk Yeu, Ho-Yeul Choi, Wan-Sik Cha | 2004-06-15 |
CH
Chang Sun Han
Overall (2004): #247,957 of 270,089Top 95%
1
Patents 2004