Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ted R. Massa | Kennametal | 2 |
| 1 | James R. Kasperik | Kennametal | 2 |
| 3 | E. Wesley Elliott | Oberg Industries | 1 |
| 3 | Michael Anthony Weisel | Kennametal | 1 |
| 3 | Russell L. Yeckley | Kennametal | 1 |
| 3 | William L. Harbaugh | Burrell Mining Products | 1 |
| 3 | Raymond D'Alesandro | Chemical Lime | 1 |
| 3 | Jonathan E. Podlucky | — | 1 |
Part of Pennsylvania