Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824576 | Process for removal, separation and recovery of heavy metal ions from solutions using activated alumina including acid treated activated alumina | Ajay Sood, John W. Novak, Jr. | 1989-04-25 |
| 4808742 | Method for removing acids from organophosphate functional fluids | — | 1989-02-28 |
| 4797271 | Producing alumina granules in a fluidized bed | Jon F. Edd, Alan Pearson, Chin-Liang Chou, Hisashi Kono, Ching-Chung Huang | 1989-01-10 |