Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6094357 | Product having a rechargeable battery which is held in a mechanically stable manner and is easy to remove | Karl Hintermann, Walter Alex Planegger, Peter Schaller | 2000-07-25 |
| 5400508 | Shaving apparatus having a dust seal | — | 1995-03-28 |
| 5058270 | Dry shaving apparatus interrupting motor circuit as shear foil and shaving head are exposed | Ingo Muller, Arno Wolfger | 1991-10-22 |
| 4993152 | Dry-shaving apparatus | — | 1991-02-19 |