Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Anton Ruettiger | Preh Gmbh | 12 |
| 2 | Hans-Karl Heil | Preh-Werke Gmbh & Co. Kg | 3 |
| 3 | Georg Hufner | Newfrey | 2 |
| #4 | Buehner Kuno | Perma-Tec Gmbh & Co. Kg | 1 |
| #4 | Anton R uttiger | Preh-Werke Gmbh & Co. Kg | 1 |