Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5997272 | Extruder die insert plate system | Joseph L. Leonardo, J. Stephen Kittelberger, John Ianni, Fumii Higuchi | 1999-12-07 |
| 5700413 | Extruder die plate with removable splitters | Fumii Higuchi, John Ianni, Michael G. Hawkins, Joseph L. Leonardo | 1997-12-23 |