Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5779898 | Control device for filters in at least two partial fluid streams | Heinrich Schwanekamp, Manfred Hangmann, Wilfred Leuders | 1998-07-14 |
| 5650067 | Supporting plate for a filter | — | 1997-07-22 |
| 5122286 | Filter changing apparatus for flowable plastic material | Udo Kreyenborg, Manfred Hangmann | 1992-06-16 |
| 5004414 | Apparatus for filtering plasticized materials in extruders and like machines | Rolf-Rudiger Stude | 1991-04-02 |