Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7109615 | Electronically commutated internal rotor motor | Matthias Nickel-Jetter | 2006-09-19 |
| 7023119 | Device comprising a plain bearing | — | 2006-04-04 |
| 6051944 | Drive-circuit of a brushless DC motor | — | 2000-04-18 |
| 5963024 | Switched mode power supply | — | 1999-10-05 |
| 5652825 | Power supply for low-voltage DC motor | Fritz Schmider | 1997-07-29 |
| 4928045 | Circuit arrangement for generating a measurement signal associated with the frequency of an alternating current signal | — | 1990-05-22 |
| 4823060 | Circuit arrangement for generating a measurement signal associated with the frequency of an alternating current signal | — | 1989-04-18 |
| 4626751 | Direct-current motor without commutator | — | 1986-12-02 |
| 4542323 | Direct current motor without commutator | — | 1985-09-17 |
| 4482849 | Method and device for alignment of a brushless d.c. motor | Rolf Muller | 1984-11-13 |
| 4449081 | Compensating outputs of hall generators to minimize effects of temperature variation and the like | — | 1984-05-15 |
| 4426604 | Direct current fan with control means | Rolf Muller | 1984-01-17 |
| 4376261 | Two-pulse brushless d.c. motor | Johann von der Heide, Rolf Muller | 1983-03-08 |