Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879401 | Process for removal of impurities in alkyl nitrite formation | Arthur R. Doumaux, Jr. | 1989-11-07 |
| 4847418 | Continuous process for preparing alkanolamines | Charles A. Gibson, Moinuddin Ahmed | 1989-07-11 |
| 4845296 | Process for preparing alkanolamines | Moinuddin Ahmed, Charles A. Gibson | 1989-07-04 |