Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6149847 | Method of and apparatus for the production of polyester yarn | Rudolf Geier, Ingo Efflander | 2000-11-21 |
| 5965073 | Process and device for producing polyester yarns | Rudolf Geier, Ingo Eiflander | 1999-10-12 |
| 4587363 | Continuous preparation of oxygen-containing compounds | Gunter Schuch, Armin Stoessel, Guenter Herrmann, Arthur Brunner, Peter Zehner +1 more | 1986-05-06 |