Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7465606 | Resistance welded solder crimp for joining stranded wire to a copper lead-frame | John William DeWys, Sergey Tyshchuk, Johannes Brouwers, Murray Van Duynhoven | 2008-12-16 |
| 7248005 | Dual motor arrangement and control method | — | 2007-07-24 |
| 7112907 | Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets | Andrew Lakerdas, Attila Simofi-Ilyes, Corneliu Dragoi, Peter A. Kershaw, Martin Volkening | 2006-09-26 |
| 7091685 | Overload protection for DC motors | — | 2006-08-15 |
| 7088062 | Electronic variable speed control of dual motor configuration | — | 2006-08-08 |
| 6995490 | Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets | Andrew Lakerdas, Attila Simofi-Ilyes, Corneliu Dragoi, Peter A. Kershaw, Martin Volkening | 2006-02-07 |
| 6960895 | Coupled RFI choke as stall detection means for brush type DC motor | — | 2005-11-01 |
| 6933687 | Dual motor configuration with primary brushless motor and secondary integrated speed control motor | Erich Maier | 2005-08-23 |
| 6888328 | Quasi bipolar topology for brushless motors | — | 2005-05-03 |
| 6850022 | Method and system for determining electronic commutation in brushless DC machines irrespective of the placement of rotor position sensors | Ke Liu, Scott Kirkpatrick | 2005-02-01 |
| 6809484 | Multiple electronically commutated motor control apparatus and method | Dragan Radakiovic | 2004-10-26 |
| 6803735 | Speed-based open-loop start-up method for brushless DC motor | Ke Liu | 2004-10-12 |
| 6801009 | Current limitation process of brush and brushless DC motors during severe voltage changes | Ke Liu | 2004-10-05 |
| 6798162 | 12/42 volt DC brush motor control system | Ke Liu | 2004-09-28 |
| 6774587 | Multiple brush-type motor control apparatus and method | Dragan Radavcovic | 2004-08-10 |
| 6630805 | Actively controlled regenerative snubber for unipolar brushless DC motors | — | 2003-10-07 |
| 6611410 | Positive supply lead reverse polarity protection circuit | — | 2003-08-26 |
| 6532909 | Low ram air resistance cooling module with automatic flapper door actuation | Frank A. Stauder, Andrew Lakerdas | 2003-03-18 |
| 6448676 | Pulse width modulated engine cooling fan motor with integrated MOSFET | Peter A. Kershaw, Andrew Lakerdas, Marek Horski | 2002-09-10 |
| 6433507 | Spread spectrum motor control circuit | Andrew Lakerdas | 2002-08-13 |
| 6331757 | Staggered pulse width modulation apparatus and method for EMI minimization in motor | — | 2001-12-18 |
| 6166500 | Actively controlled regenerative snubber for unipolar brushless DC motors | — | 2000-12-26 |
| 5744921 | Control circuit for five-phase brushless DC motor | — | 1998-04-28 |
| 5675464 | Stall or reduced-speed protection system for electric motor | Jerzy Muszynski | 1997-10-07 |
| 5103807 | Shape memory alloy orthotic device | — | 1992-04-14 |