Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851573 | Separation of citric acid from fermentation broth with a weakly basic anionic exchange resin adsorbent | Santi Kulprathipanja, James W. Priegnitz | 1989-07-25 |
| 4810266 | Carbon dioxide removal using aminated carbon molecular sieves | Hermann A. Zinnen, Chin-Hsiung Chang | 1989-03-07 |