Top Inventors at Royse Manufacturing All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Edwin H. Royse | 3 |
| 2 | David Watts | 1 |
| 3 | Donald L. Frank | 1 |
| #4 | John A. Holstein | 1 |
| #5 | John Kelley | 1 |
| #6 | Harry H. Royse | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Edwin H. Royse | 3 |
| 2 | David Watts | 1 |
| 3 | Donald L. Frank | 1 |
| #4 | John A. Holstein | 1 |
| #5 | John Kelley | 1 |
| #6 | Harry H. Royse | 1 |