Top Inventors at Extrusion Dies All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Harry G. Lippert | 7 |
| 2 | Vernon J. Krupa | 7 |
| 3 | John A. Ulcej | 5 |
| #4 | Donald R. Garton | 4 |
| #5 | Gregory M. Wilson | 3 |
| #6 | John W. Ryan | 2 |
| #7 | Brian M. Pitsch | 1 |
| #8 | Dale P. Pitsch | 1 |
| #9 | F. John Herrington | 1 |
| #10 | John A. Ulcei | 1 |
| #11 | Jeffrey M. Seckora | 1 |