Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889704 | Preparation of hydroxylammonium salts | Hugo Fuchs, Erwin Thomas, Franz-Josef Weiss | 1989-12-26 |
| 4882430 | Recovery of caprolactam from caprolactam distillation low boilers or high boilers or mixtures thereof | Gerald Neubauer, Emile De Decker, Hugo Fuchs, Bernhard Holzknecht | 1989-11-21 |
| 4814511 | Working up cyclohexyl hydroperoxide containing reaction mixtures | Gerald Neubauer, Rolf Schnabel, Juergen Hartig | 1989-03-21 |