Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861919 | Countercurrent multi-stage water crystallization of aromatic compounds | Ben Gammill | 1989-08-29 |
| 4857084 | Pressure swing adsorption apparatus and process for recovery of oil-soluble vapors | Timothy C. Frank | 1989-08-15 |
| 4842621 | Recovery process | Herbert A. Johnson | 1989-06-27 |
| 4808350 | Liquid distributor apparatus for high turndown ratios and minimum fouling | George R. Killat | 1989-02-28 |