Top Inventors at Schafer Systems All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Christopher E. Schafer | 7 |
| 2 | Ryan B. Gruhn | 5 |
| 3 | Craig Jensen | 2 |
| #4 | Kurt L. McCuen | 2 |
| #5 | Michael E. Irlmeier | 2 |
| #6 | Philip R. Littler | 2 |
| #7 | Betty L. Schafer | 1 |
| #8 | Daniel J. Fahrion | 1 |
| #9 | Daniel C. Svec | 1 |
| #10 | Douglas Edward DeVries | 1 |
| #11 | Glenn Miller | 1 |
| #12 | James F. Popelka | 1 |
| #13 | Kevin A. Jankowski | 1 |
| #14 | Ryan P. Littler | 1 |
| #15 | Scott A. Bottorf | 1 |
| #16 | Scott Williams | 1 |
| #17 | Trevor E. Meyer | 1 |
| #18 | Dennis J. Deyen | 1 |
| #19 | Steve Irlmeier, deceased | 1 |
| #20 | Tim Caltrider | 1 |