Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7513039 | Method of making a double-screw extruder | — | 2009-04-07 |
| 6495804 | Method of and system for heating and cooling an extruder cylinder | — | 2002-12-17 |
| 5719100 | Water treatment compositions | Bruce Barber | 1998-02-17 |
| 4913641 | Preheating and feeding apparatus for an extruder | — | 1990-04-03 |
| 4261225 | Step-down transmission for driving a plurality of extrusion screws | — | 1981-04-14 |
| 4247206 | Screw extruder for the processing of thermoplastic resins and similar materials | — | 1981-01-27 |