Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9125312 | Electrical power supply systems including non-freestanding accessories and methods for using same | Karen Lynn Cronin, Justin Raymond Hoglund, Johnnie Michael Carnes | 2015-09-01 |
| 8566630 | Apparatus, methods and computer program products supporting automatic network identification for power supplies | Michael Westerfield, Christian Gale Redmond, Jonathan Rodriguez | 2013-10-22 |
| 8362647 | Uninterruptible power supply systems and methods supporting high-efficiency bypassed operation with a variably available power source | Robert W. Johnson, George Arthur Navarro | 2013-01-29 |
| 8001392 | Battery load allocation in parallel-connected uninterruptible power supply systems | — | 2011-08-16 |
| 7948778 | Self-testing power supply apparatus, methods and computer program products | Hans-Erik Pfitzer, Rune Lennart Jonsson, John G. Tracy, Miguel Chavez, Frederick Tassitino | 2011-05-24 |
| 7405494 | AC power supply apparatus, methods and computer program products using PWM synchronization | Frederick Tassitino, Hans-Erik Pfitzer, Michael Westerfield | 2008-07-29 |
| 7403364 | Power system fault characterization using transformed values | Kevin L. Van Eyll, Pasi Taimela | 2008-07-22 |
| 7400066 | Apparatus and methods for UPS bypass monitoring and control | Frederick Tassitino, Michael Westerfield | 2008-07-15 |
| 5973473 | Motor control circuit | John E. Durkee | 1999-10-26 |
| 5892349 | Control circuit for two speed motors | Robert R. Bogwicz, John E. Durkee | 1999-04-06 |
| 5689168 | Control circuit for two speed motors | Robert R. Bogwicz, John E. Durkee | 1997-11-18 |