Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11639018 | Method and device for cleaning a polymer melt | Klaus Schafer, Jörg Alexander, Matthias Schmitz | 2023-05-02 |
| 6305831 | Apparatus for mixing and advancing a polymer melt | Egon Gathmann, Georg Stausberg, Klaus Schafer | 2001-10-23 |
| 5887972 | Extruder for plastic granules | Klaus Schafer, Wolfgang Imping | 1999-03-30 |