Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7046051 | Method and device for switching on and off power semiconductors, especially for the torque-variable operation of an asynchronous machine, for operating an ignition system for spark ignition engines, and switched-mode power supply | Christoph Dörlemann | 2006-05-16 |
| 6847881 | Method and device for controlling piezo-driven fuel injection valves | — | 2005-01-25 |
| 6744615 | Device for controlling an electromechanical regulator | Stefan Butzmann | 2004-06-01 |
| 6648297 | Method for controlling an electromechanical actuator | Stefan Butzmann | 2003-11-18 |
| 6518748 | Method for determining the position of an armature | Stefan Butzmann | 2003-02-11 |
| 6363895 | Device for controlling a regulator | Stefan Butzmann | 2002-04-02 |
| 5594335 | Position-detecting apparatus with hall elements and an interpolation circuit for interpolating analog output signals of the hall elements | — | 1997-01-14 |
| 5299046 | Self-sufficient photon-driven component | Werner Spaeth | 1994-03-29 |
| 4831323 | Voltage limiting circuit | — | 1989-05-16 |
| 4731574 | Series voltage regulator with limited current consumption at low input voltages | — | 1988-03-15 |
| 4704572 | Series voltage regulator with limited current consumption at low input voltages | — | 1987-11-03 |
| 4645986 | Deflectional system for a television set comprising a power transistor | Eduard Sawicki | 1987-02-24 |
| 4633162 | Series voltage regulator employing a variable reference voltage | — | 1986-12-30 |