Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10746448 | Controls and operation of variable frequency drives | Benjamin James Sykora, David M. Foye, Dennis M. Beekman, Korwin Jay Anderson, Robert S. Bakkestuen | 2020-08-18 |
| 10598551 | Variable frequency drive temperature determination | Benjamin James Sykora | 2020-03-24 |
| 10352608 | Screw compressor drive control | David M. Foye, Dennis M. Beekman, John R. Sauls | 2019-07-16 |
| 10314200 | Variable frequency drive operation to avoid overheating | Benjamin James Sykora, David M. Foye, Korwin Jay Anderson | 2019-06-04 |
| 10295239 | Controls and operation of variable frequency drives | Benjamin James Sykora, David M. Foye, Dennis M. Beekman, Korwin Jay Anderson, Robert S. Bakkestuen | 2019-05-21 |
| 10240839 | Apparatuses, systems, and methods of variable frequency drive operation and control | Benjamin James Sykora, Pavak Mehta | 2019-03-26 |
| 10141733 | Variable frequency drive overvoltage protection | David M. Foye, Korwin Jay Anderson | 2018-11-27 |
| 10101070 | Axial thrust control for rotary compressors | Dennis M. Beekman, David M. Foye, Korwin Jay Anderson, Benjamin James Sykora | 2018-10-16 |
| 10041840 | Variable frequency drive temperature determination | Benjamin James Sykora | 2018-08-07 |
| 10003287 | Magnet degradation and damage controls and diagnostics for permanent magnet motors | David M. Foye | 2018-06-19 |
| 9939795 | Dynamic simulated motor for controller testing | Korwin Jay Anderson | 2018-04-10 |
| 9733002 | Screw compressor drive control | David M. Foye, Dennis M. Beekman, John R. Sauls | 2017-08-15 |
| 9654048 | Variable frequency drive self-check | Benjamin James Sykora, Korwin Jay Anderson, Matthew A. Shepeck, David M. Foye | 2017-05-16 |
| 9654049 | Variable frequency drive active harmonic mitigation controls and diagnostics | Benjamin James Sykora, David M. Foye, Korwin Jay Anderson, William J. Walters | 2017-05-16 |
| 9647591 | Magnet degradation and damage controls and diagnostics for permanent magnet motors | David M. Foye | 2017-05-09 |
| 9605886 | Axial thrust control for rotary compressors | Dennis M. Beekman, David M. Foye, Korwin Jay Anderson, Benjamin James Sykora | 2017-03-28 |
| 9595905 | Refrigerant compressor drives offering enhanced robustness, efficiency and rated voltage operability | Dennis M. Beekman, David M. Foye | 2017-03-14 |
| 9568208 | HVAC electrical system power supply packaging system | David M. Foye, William J. Walters | 2017-02-14 |
| 9176193 | Method for monitoring a permanent magnet motor | David M. Foye | 2015-11-03 |
| 8875530 | Screw compressor drive control | David M. Foye, Dennis M. Beekman, John R. Sauls | 2014-11-04 |
| 8365544 | Screw compressor drive control | David M. Foye, Dennis M. Beekman, John R. Sauls | 2013-02-05 |
| 8179157 | Setup and method for testing a permanent magnet motor | David M. Foye | 2012-05-15 |