Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10175080 | System and method for indicating an efficiency of a fluid movement system | Brian L. Beifus, Roger Carlos Becerra, Marc McKinzie, Joshua T. Doseck, John Sheldon Wagley | 2019-01-08 |
| 10033242 | Electrical machines and methods of assembling the same | Rachele Barbara Cocks, Michael Allen Marks | 2018-07-24 |
| 10008972 | Systems and methods for determining loss of phase for power provided to an electric motor | Zachary Joseph Stauffer, Brian L. Beifus, Maung Saw Eddison, Ludovic Andre Chretien | 2018-06-26 |
| 8896248 | Methods and systems for controlling a motor | Roger Carlos Becerra, Ludovic Andre Chretien, Glen C. Young | 2014-11-25 |
| 8810170 | Methods and apparatus for electric motor controller protection | Guy Bonner, Jr. | 2014-08-19 |
| D707629 | End cap | Rachele Barbara Cocks, Michael Allen Marks | 2014-06-24 |
| 8368331 | Methods and apparatus for monitoring average current and input power in an electronically commutated motor | Guy Bonner, Jr. | 2013-02-05 |
| 7106019 | Digital communication link | Roger Carlos Becerra, William R. Archer, Brian L. Beifus | 2006-09-12 |
| 6765361 | Motor control circuit | Brian L. Beifus | 2004-07-20 |
| 6456023 | Method and apparatus to control a variable speed motor | Roger Carlos Becerra, Dirk van der Duim | 2002-09-24 |
| 5986419 | Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor | William R. Archer, Roger Carlos Becerra, Brian L. Beifus, David M. Erdman, Thomas Merlin Jahns +5 more | 1999-11-16 |
| 5825107 | Drive package for a dynamoelectric machine | Philip Wayne Johnson, Jeffrey Neumann | 1998-10-20 |
| 5796194 | Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor | William R. Archer, Roger Carlos Becerra, Brian L. Beifus, David M. Erdman, Thomas Merlin Jahns +5 more | 1998-08-18 |
| 5675231 | Systems and methods for protecting a single phase motor from circulating currents | Roger Carlos Becerra | 1997-10-07 |
| 5592058 | Control system and methods for a multiparameter electronically commutated motor | William R. Archer, Roger Carlos Becerra, Brian L. Beifus, Rajendra K. Shah | 1997-01-07 |
| 5557182 | System and methods for controlling a draft inducer to provide a desired operating area | Robert K. Hollenbeck | 1996-09-17 |
| RE35124 | Control system, electronically commutated motor system, draft inducer apparatus and method | David M. Erdman | 1995-12-19 |
| 5075608 | Control system, electronically commutated motor system, draft inducer apparatus and method | David M. Erdman | 1991-12-24 |