Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6000135 | Dry shaving apparatus with guard member | Roland Ullmann, Bernhard Best | 1999-12-14 |
| 5507095 | Electric shaving apparatus | Matthias Wetzel, Klaus Oprach, Reinhold Eichhorn, Helmut Durr | 1996-04-16 |
| 5007168 | Electric dry shaving apparatus with a movable shaving head arrangement | Werner Messinger, Karl Trolltsch | 1991-04-16 |