Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5200205 | Extruder barrel temperature regulation apparatus | Siegfried Wissmann | 1993-04-06 |
| 5123828 | Extruder vent having recessed vent passageway opening | — | 1992-06-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5200205 | Extruder barrel temperature regulation apparatus | Siegfried Wissmann | 1993-04-06 |
| 5123828 | Extruder vent having recessed vent passageway opening | — | 1992-06-23 |