Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Egon Hansch | Ferag Ag | 5 |
| 2 | Fredi Dubach | Julius Blum Gesellschaft M.B.H. | 3 |
| 3 | Erich Weidmann | Gebruder Loepfe Ag | 1 |
| 3 | Branislav Previsic | — | 1 |
| 3 | Petrus Warmerdam | Zellweger Luwa Ag | 1 |
| 3 | Jakob Wetter | Ferag Ag | 1 |
| 3 | Albert Weijland | Interzeag Ag | 1 |