Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656407 | Axially movable cluster conduits for plastic processing in a screw machine | Donald N. Halgren | 2003-12-02 |
| 6432352 | Jewel orifice nozzle | — | 2002-08-13 |
| 6074578 | Barrel wall conduit arrangements for a plastic processing screw machine | Donald N. Halgren | 2000-06-13 |
| 5945061 | Method of input for a plasticating machine through a jewel orifice | Donald N. Halgren | 1999-08-31 |
| 5939015 | Centercore process for gas assisted injection molding | — | 1999-08-17 |
| 5851477 | Reinforced tubing manufacture by a plastic processing screw machine | Donald N. Halgren | 1998-12-22 |
| 5744092 | Axially movable cluster conduits for plastic processing in a screw machine | Donald N. Halgren | 1998-04-28 |
| 5670112 | Multiphase matter introduction with a plasticating screw arrangement | Edward J. Lasch, Vineet KAPILA, Nick R. Schott | 1997-09-23 |
| 4964730 | Plasticating extruder screw | Bernard G. Alzner | 1990-10-23 |
| 4749279 | Modular mixing apparatus for extruded material including rotary for processing modules having variable speed independent drive means | — | 1988-06-07 |
| 4697928 | Modular mixing apparatus including interchangeable fluid processing means | — | 1987-10-06 |
| 4447156 | Modular mixing apparatus including interchangeable fluid processing means | — | 1984-05-08 |