Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5988437 | Device for draining or storing viscous materials | Wolfram Kalt, Friedrich Ecker, Wilhelm Feilmair, Michael Longin | 1999-11-23 |
| 5984655 | Spinning process and apparatus | Friedrich Ecker, Wilhelm Feilmair, Christoph Schrempf, Heinrich Firgo, Stefan Zikeli +1 more | 1999-11-16 |
| 5968434 | Process of making cellulose moldings and fibers | Stefan Zikeli, Ernst Rauch, Hermann Koberger, Friedrich Ecker, Hartmut Ruf +1 more | 1999-10-19 |
| 5798125 | Device for the preparation of cellulose mouldings | Stefan Zikeli, Ernst Rauch, Hermann Koberger, Friedrich Ecker, Hartmut Ruf +1 more | 1998-08-25 |
| 5795488 | Process for transporting a solution of cellulose in an aqueous tertiary amine-oxide | Wolfram Kalt, Johann Manner, Heinrich Firgo | 1998-08-18 |
| 5773655 | Process for the purification of an aqueous solution of a tertiary amine-oxide | Eduard Mulleder, Bruno Mangeng, Johann Manner | 1998-06-30 |
| 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 |
| 5589125 | Process of and apparatus for making cellulose mouldings | Stefan Zikeli, Ernst Rauch, Hermann Koberger, Friedrich Ecker, Hartmut Ruf +1 more | 1996-12-31 |
| 5582783 | Process for controlling a flowing cellulose suspension | Stefan Zikeli, Ulrich Möderl, Friedrich Ecker | 1996-12-10 |