Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6310239 | Process for manufacturing terephthalic acid | Hang-Duk Roh | 2001-10-30 |
| 6075163 | Process for manufacturing terephthalic acid | Hang-Duk Roh | 2000-06-13 |
| 6031128 | Process for manufacturing terephthalic acid | Hang-Duk Roh | 2000-02-29 |