Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12153004 | Method for calculating surface relaxation rate of shale | Xinyang He, Kun Zhang, Chengzao Jia, Yan Song, Hulin Niu +21 more | 2024-11-26 |
| 9523739 | Method and apparatus for measuring rotor resistance of induction motor | Cheng Lu | 2016-12-20 |
| 9453498 | Method for backing up and recovering blade zero point of pitch drive system for wind turbine and pitch drive system for wind turbine | Yu He, Jian-Ming Wang, Hong Liu | 2016-09-27 |
| 9231512 | Systems, methods, and devices for demodulating induction motor instantaneous rotor slot harmonic frequency | Larry A. Turner, Benoit Leprettre, Roy S. Colby | 2016-01-05 |
| 8494037 | Complex adaptive phase discriminator | Larry A. Turner | 2013-07-23 |
| 8373379 | Methods and devices for estimation of induction motor inductance parameters | Larry A. Turner, Roy S. Colby | 2013-02-12 |
| 8332163 | Methods and apparatus for estimating rotor slots | Larry A. Turner, Roy S. Colby | 2012-12-11 |
| 8131482 | Methods and apparatus for estimating rotor slots | Larry A. Turner, Roy S. Colby | 2012-03-06 |
| 8102140 | Method and apparatus for estimating induction motor electrical parameters | Larry A. Turner, Roy S. Colby | 2012-01-24 |
| 8035322 | Methods and apparatuses for estimating transient slip | Larry A. Turner, Roy S. Colby | 2011-10-11 |
| 7769552 | Method and apparatus for estimating induction motor rotor temperature | Roy S. Colby, Larry A. Turner | 2010-08-03 |
| 7570074 | Electronic overload relay for mains-fed induction motors | Thomas G. Habetler, Ronald G. Harley, Roy S. Colby | 2009-08-04 |