Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656224 | Process for the production of a cellulose suspension | Stefan Zikeli | 1997-08-12 |
| 5626810 | Process for the preparation of cellulose solutions | Stefan Zikeli | 1997-05-06 |
| 5216144 | Method of producing shaped cellulosic articles | Dieter Eichinger, Raimund Jurkovic, Stephan Astegger, Heinrich Firgo, Karin Weinzierl +1 more | 1993-06-01 |
| 5189152 | Cellulose solution in water and NMMO | Stefan Zikeli, Heinrich Firgo, Bernd Wolschner, Dieter Eichinger, Johann Manner +2 more | 1993-02-23 |