Top Inventors at Rotor Tool All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | John A. Borries | 3 |
| 2 | Donald A. Ciolli | 2 |
| 3 | Donald W. Clemens | 2 |
| #4 | George R. Curtiss | 2 |
| #5 | Dennis A. Jarc | 1 |
| #6 | Earl E. Rush | 1 |
| #7 | Frederick S. Safran | 1 |
| #8 | Joseph W. Adams | 1 |
| #9 | Paul Podsobinski | 1 |
| #10 | William S. Washeim | 1 |