Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hans Oetiker | Hans Oetiker Ag Maschinen-Und Apparatefabrik | 3 |
| 2 | Rudolf Schwarz | Degussa Ag | 2 |
| 2 | Erich Vogelbacher | Sulzer Brothers Limited | 2 |
| #4 | Daniel A. Fivian | Maag Gear-Wheel & Machine Company Limited | 1 |