Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6385555 | Method and device for determining the rotational speed of a polyphase machine operating with field orientation and without a sensor | Frank Hoffmann | 2002-05-07 |
| 6316905 | Means and device for determining the angular velocity of a rotor of polyphase machine operated by field orientation without a transmitter | — | 2001-11-13 |
| 5610485 | Method for controlling the torque of an asynchronous machine | Dieter Maischak | 1997-03-11 |
| 4678248 | Direct self-control of the flux and rotary moment of a rotary-field machine | — | 1987-07-07 |