Top Inventors at Perftech All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Lewis T. Donzis | 59 |
| 2 | Henry M. Donzis | 58 |
| 3 | John A. Murphy | 58 |
| #4 | Jonathan E. Schmidt | 45 |
| #5 | Peter W. Baron | 39 |
| #6 | Rodney D. Frey | 35 |
| #7 | Lee Carl Ziegenhals | 6 |
| #8 | Johathan Elliott Schmidt | 1 |
| #9 | Ryan M. Matelske | 1 |