Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4605763 | Process for the purification of terephthalic acid | William V. Phillips, Thomas Earl Woodruff | 1986-08-12 |
| 4447646 | Process for the purification of terephthalic acid | Griffin Ivan Johnson | 1984-05-08 |