Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5874034 | Swell reducing extrusion die | James M. Proper, Joseph L. Leonardo, Daniel Raymond Knopp, Mark V. Devlin | 1999-02-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5874034 | Swell reducing extrusion die | James M. Proper, Joseph L. Leonardo, Daniel Raymond Knopp, Mark V. Devlin | 1999-02-23 |