Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6290846 | Device for filtering molten plastic | — | 2001-09-18 |
| 5779898 | Control device for filters in at least two partial fluid streams | Heinrich Schwanekamp, Ludger Wilken-Trenkamp, Wilfred Leuders | 1998-07-14 |
| 5770067 | Device for filtering a fluid | — | 1998-06-23 |
| 5122286 | Filter changing apparatus for flowable plastic material | Udo Kreyenborg, Ludger Wilken-Trenkamp | 1992-06-16 |