Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John F. Grunewalder | Ppg Industries | 3 |
| 2 | David N. Hollinger | Delta International Machinery | 2 |
| 2 | Michael J. Pawlik | Ppg Industries Ohio | 2 |
| #4 | Cathy A. Kreutzer | Ppg Industries | 1 |
| #4 | Thomas C. Bour | Ppg Industries | 1 |
| #4 | Anthony P. Stanton | Graphic Arts Technical Foundation | 1 |
| #4 | Charles T. Goss | — | 1 |
Part of Pennsylvania