Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210292 | Process for preparing polymer grade terephthalic acid | Tae Sun Chang, Young Kil Lee, Kyu Wook Choi | 1993-05-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210292 | Process for preparing polymer grade terephthalic acid | Tae Sun Chang, Young Kil Lee, Kyu Wook Choi | 1993-05-11 |