Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9022639 | Treatment element for treating material in a multi-shaft worm machine and multi-shaft worm machine | — | 2015-05-05 |
| 6179460 | Twin screw extruder with single-flight kneading disks | Gerhard Weihrich | 2001-01-30 |
| 6048088 | Multi-shaft screw-type extruder, in particular twin-shaft extruder | Erwin Haring, Gerhard Weihrich | 2000-04-11 |
| 6042260 | Method of carrying out continuous preparation processes on tightly meshing extruders rotating in the same sense | Peter Heidemeyer, Erwin Haring, Rainer Munz, Rainer Herter | 2000-03-28 |