Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Paul M. Perrine | — | 2 |
| 2 | Ronald J. Mulford | Campbell Hausfeld / Scott Fetzer | 1 |
| 2 | Richard K. Donelson | Voith Hydro | 1 |
| 2 | Douglas Allan Royce | The Procter & Gamble | 1 |
Part of Indiana
5 patents · 4 inventors · 1.3/1k pop.
Ranked #9,331 of 30,730 cities Top 35%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Paul M. Perrine | — | 2 |
| 2 | Ronald J. Mulford | Campbell Hausfeld / Scott Fetzer | 1 |
| 2 | Richard K. Donelson | Voith Hydro | 1 |
| 2 | Douglas Allan Royce | The Procter & Gamble | 1 |
Part of Indiana