Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6046312 | Water soluble azo dyes and their synthesis and use | Kwang-nak Koh, Shin-Won Kang, Jin-Ho Cho, Joohg-hun Kim, Su-mi Lee | 2000-04-04 |
| 5342416 | Blue dye composition | Chun-Su Yoon, Tae-Gab Kwon | 1994-08-30 |