Top Inventors at Franz Buttner Ag All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Markus Burgin | 3 |
| 2 | Erwin Kagi | 1 |
| 3 | Heinz Hartmann | 1 |
| #4 | Herbert Scherrer | 1 |
| #5 | Ian Hogarth | 1 |
| #6 | Karl Heinz Gasser | 1 |
| #7 | Michael Muller | 1 |
| #8 | Philipp Ziegler | 1 |
| #9 | Stefan Wirth | 1 |
| #10 | Friedhelm Kiewning | 1 |
| #11 | Kurt Hefti | 1 |