Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698151 | Process of making cellulose fibres | Stefan Zikeli, Friedrich Ecker, Raimund Jurkovic, Hartmut Ruf | 1997-12-16 |
| 5628941 | Process for the production of cellulose moulded bodies | Wolfram Kalt, Heinrich Firgo, Johann Manner, Eduard Mulleder, Bruno Mangeng +2 more | 1997-05-13 |