Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689014 | Integrated process for producing diisopropyl ether and an isopropyl tertiary alkyl ether | Stanley J. Frey, Robert J. Schmidt, Richard E. Marinangeli | 1997-11-18 |
| 5614065 | Distillation with membrane apparatus | — | 1997-03-25 |
| 5600023 | Single stage diisopropyl ether process using organic solvent aqueous extraction and ion exchange treating for SO.sub.3 removal | Laura E. Kempf | 1997-02-04 |