Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6416285 | Process for manufacturing an impeller | — | 2002-07-09 |
| 6290456 | Ventilator with brush type blocking device | Ralf Widmann | 2001-09-18 |
| 5803707 | Slide-in cross current ventilator | Karl Schips | 1998-09-08 |
| 5428945 | Cleaning device for harvester-thresher | Wilhelm von Allworden, Josel Honl, Rainer Gansel, Hans-Werner Roth, Karl Schips | 1995-07-04 |