Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11876477 | Position observer for electrical machines | Helen Pollock | 2024-01-16 |
| 10168231 | Galvanically isolated monitoring circuit | Helen Pollock | 2019-01-01 |
| 9917481 | Synchronous reluctance machine | Helen Pollock | 2018-03-13 |
| 9888533 | Power adaptors | David Summerland, Helen Pollock | 2018-02-06 |
| 9676086 | Torque tool with synchronous reluctance motor | Helen Pollock | 2017-06-13 |
| 9590541 | Method and apparatus for control of electrical machines | Helen Pollock | 2017-03-07 |
| 9577479 | Improvements for flux switching machines | Helen Pollock | 2017-02-21 |
| 9124193 | Power adaptors | David Summerland, Helen Pollock | 2015-09-01 |
| 9054602 | Resonant circuit with constant current characteristics | Helen Pollock | 2015-06-09 |
| 8970146 | Controller for electrical machines | Helen Pollock | 2015-03-03 |
| 8890422 | LED power supply | Helen Pollock | 2014-11-18 |
| 8853953 | High efficiency LED power supply | Helen Pollock | 2014-10-07 |
| 8766571 | Method and apparatus for controlling an electrical machine | Helen Pollock | 2014-07-01 |
| 8471510 | Control of electrical machines | Helen Pollock | 2013-06-25 |
| 8294401 | Control of electrical machines | Helen Pollock | 2012-10-23 |
| 8242711 | Lighting systems | David Summerland, Helen Pollock | 2012-08-14 |
| 8022649 | Control of switched reluctance machines | Helen Pollock | 2011-09-20 |
| 7429840 | Control of an electrical reluctance machine | Helen Pollock | 2008-09-30 |
| 6989648 | Load angle determination for electrical motors | John David Wale | 2006-01-24 |
| 6867561 | Electrical machine | Helen Pollock, Richard T. Walter | 2005-03-15 |
| 6850029 | Electrical machines | Helen Pollock | 2005-02-01 |
| 6788020 | Electrical machines | Helen Pollock | 2004-09-07 |
| 6646406 | Electrical machines | Helen Pollock, Richard T. Walter | 2003-11-11 |
| 6384564 | Electrical machines | — | 2002-05-07 |
| 6140729 | Electrical machines | John David Wale, Mike Barnes | 2000-10-31 |