Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486432 | Method and laser cladding of plasticating barrels | Paul N. Colby, Joeo M. Gatti, Paul T. Colby | 2002-11-26 |
| 5439633 | Plastic extruder having a mixing valve with automatic shut-off | Michael F. Durina, Timothy W. Womer | 1995-08-08 |
| 5318357 | Extruder injection apparatus | Paul N. Colby, Bradley P. Smith | 1994-06-07 |