Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Vincent J. Wojtyna | Koppers | 3 |
| 2 | Joseph Brandon Delaney | Penn United Technologies | 2 |
| 3 | Jan E. Fisher, Sr. | — | 1 |
Part of Pennsylvania
6 patents · 3 inventors
Ranked #64,531 of 111,555 cities Top 60%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Vincent J. Wojtyna | Koppers | 3 |
| 2 | Joseph Brandon Delaney | Penn United Technologies | 2 |
| 3 | Jan E. Fisher, Sr. | — | 1 |
Part of Pennsylvania