Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835338 | Process for removal of carbonyl sulfide from organic liquid by adsorption using alumina adsorbent capable of regeneration | — | 1989-05-30 |
| 4795735 | Activated carbon/alumina composite | Robin K. Bergstrom, David G. Gatty | 1989-01-03 |