Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7701165 | Induction motor controller | Wei Quian, Thomas A. Nondahl | 2010-04-20 |
| 7649756 | Common mode noise reduction in converter systems through modification of single phase switching signal | Russel J. Kerkman, Qiang Yin | 2010-01-19 |
| 7538507 | System and method for transient-based motor speed estimation with transient excitation | Thomas A. Nondahl, David M. Messersmith | 2009-05-26 |
| 7358700 | Induction motor controller | Wei Qian, Thomas A. Nondahl | 2008-04-15 |
| 7298105 | Motor speed estimation system and method using hybrid model reference adaptive system | Wei Qian | 2007-11-20 |
| 7227326 | System and method for transient-based motor speed estimation with transient excitation | Thomas A. Nondahl, David M. Messersmith | 2007-06-05 |
| 7193387 | System and method for motor speed estimation using hybrid model reference adaptive system | Wei Qian | 2007-03-20 |
| 7164254 | Modulation methods and apparatus for reducing common mode voltages | Russel J. Kerkman, Qiang Yin | 2007-01-16 |