Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hans-Peter Keller | Gebruder Loepfe Ag | 10 |
| 2 | Thomas Grütter | Sulzer Chemtech Ag | 3 |
| 3 | Peter Dittes | Sulzer Brothers Limited | 2 |
| 3 | Ralf Kleeb | — | 2 |
| 3 | Patrick Schmidlin | Eth Zërich | 2 |
| 3 | Beat Frohlich | Ferag Ag | 2 |
| 3 | Ernst Willi | Mettler Instrumente Ag | 2 |
| #8 | Victor Tobler | Supermatic Kunststoff Ag | 1 |
| #8 | Gustav Bystricky | Cerberus Ag | 1 |