Top Inventors at Wilhelm Ruf Kg All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Horst Hoffmann | 3 |
| 2 | Reinhard Hochholzer | 3 |
| 3 | Herbert Keller | 2 |
| #4 | Horst Pissulla | 2 |
| #5 | Dieter Braun | 1 |
| #6 | Herbert Hafner | 1 |
| #7 | Leopold Hinterberger | 1 |
| #8 | Rita Burger | 1 |
| #9 | Thomas Joschika | 1 |
| #10 | Tibor Hargita | 1 |
| #11 | Werner Flierl | 1 |
| #12 | Ingo Berlitz | 1 |
| #13 | Werner Till | 1 |