Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465985 | Arrangement including means for displaying a charging state | — | 2002-10-15 |
| 5568040 | Charging arrangement for the time-controlled charging of at least one rechargeable cell | Martin Sonnek | 1996-10-22 |
| 5471016 | Apparatus having at least one battery secured to a printed circuit board | Martin Sonnek | 1995-11-28 |
| 4486697 | Reversing device for a two-pole single-phase synchronous motor | Gerhard Diefenbach | 1984-12-04 |