Top Inventors at Quadrant Epp Ag All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Joseph V. Gregg | 7 |
| 2 | Wesley Allen Kohler | 6 |
| 3 | Lyle D. Berning | 3 |
| #4 | Richard W. Campbell | 2 |
| #5 | Scott Howard Williams | 2 |
| #6 | Stephan Glander | 2 |
| #7 | Brian Michael Yarcich | 1 |
| #8 | Ermanno Nizzoli | 1 |
| #9 | Hendrik Vandenbruaene | 1 |
| #10 | Rob Oolderink | 1 |