Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725215 | Extruder with exchangeable filter for foamed plastic material | Udo Kreyenborg | 1988-02-16 |
| 4701118 | Apparatus for filtering plasticized materials in extruders | Rolf-Rudiger Stude | 1987-10-20 |