Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11890945 | Electric multi-mode drive system and method for operating the same, a track and a vehicle for use in such a drive system | — | 2024-02-06 |
| 11365620 | Method of and a device for estimating down hole speed and down hole torque of borehole drilling equipment while drilling, borehole equipment and a computer program product | — | 2022-06-21 |
| 10389285 | Stator resistance estimation for electric motors | David Patrick Magee, Jorge Zambada | 2019-08-20 |
| 10138721 | Method of and a device and an electronic controller for mitigating stick-slip oscillations in borehole equipment | — | 2018-11-27 |
| 9813005 | Stator resistance estimation for electric motors | David Patrick Magee, Jorge Zambada | 2017-11-07 |
| 9708900 | Method of and a device for determining operational parameters of a computational model of borehole equipment, an electronic controller and borehole equipment | — | 2017-07-18 |
| 9413282 | Stator resistance estimation for electric motors | David Patrick Magee, Jorge Zambada | 2016-08-09 |
| 8829812 | Dimmable lighting system | — | 2014-09-09 |
| 8212494 | Dimmer triggering circuit, dimmer system and dimmable device | — | 2012-07-03 |
| 6864660 | Method and device for controlling an electric load connected to a multiphase switchable DC/AC frequency convertor | — | 2005-03-08 |
| 6552509 | Method and a device for sensorless estimating the relative angular position between the stator and rotor of a three-phase synchronous motor | — | 2003-04-22 |
| 6552606 | Amplifier circuit having output filter capacitance current feedback | Hendrikus Johannes Jacobus Domensino | 2003-04-22 |
| 6247361 | Method and apparatus for determining the contents of a gas bottle | Helmuth Bender, Hans Roelvink | 2001-06-19 |