Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12199466 | Uninterruptible power supply system and method | — | 2025-01-14 |
| 9941738 | Dynamic DC link voltage control | — | 2018-04-10 |
| 9667069 | Adaptive load sharing of parallel inverters system | — | 2017-05-30 |
| 9172271 | Parallel control and protection for UPS | Eyob Demissie, Venkatraman Chennakesavan, Michael J. Ingemi | 2015-10-27 |
| 9093860 | Fault detection for parallel inverters system | — | 2015-07-28 |
| 8896152 | Systems and methods for operating an uninterruptible power supply | Venkatraman Chennakesavan, Michael J. Ingemi, David E. Reilly, Rajesh Ghosh, Indra Prakash | 2014-11-25 |
| 8772964 | Parallel control and protection for UPS | Eyob Demissie, Venkatraman Chennakesavan, Michael J. Ingemi | 2014-07-08 |
| 8456036 | Input and output power modules configured to provide selective power to an uninterruptible power supply | Edward Kotlyar, Marcel B. Grenier, Venkatraman Chennakesavan | 2013-06-04 |
| 8379359 | Uninterruptible power supply | Damir Klikic, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2013-02-19 |
| 8134811 | Uninterruptible power supply | Damir Klikic, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2012-03-13 |
| 7944182 | Adjustable battery charger for UPS | Luka Petrovic, Francis J. Masciarelli | 2011-05-17 |
| 7843676 | Uninterruptible power supply | Damir Klikic, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2010-11-30 |
| 7781914 | Input and output power modules configured to provide selective power to an uninterruptible power supply | Edward Kotlyar, Marcel B. Grenier, Venkatraman Chennakesavan | 2010-08-24 |
| 7521823 | Uninterruptible power supply | Damir Klikic, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2009-04-21 |
| 7259477 | Uninterruptible power supply | Damir Klikic, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2007-08-21 |
| 5276661 | Master clock generator for a parallel variable speed constant frequency power system | — | 1994-01-04 |
| 5264802 | Circuit and method for monitoring phase error modulation | Mark E. Schumacher | 1993-11-23 |
| 5181155 | Overcurrent trip circuit | David A. Fox | 1993-01-19 |
| 5027046 | Circuit and method for monitoring voltage pulse widths | — | 1991-06-25 |
| 4905117 | Circuit and method for DC content protection of parallel VSCF power systems | — | 1990-02-27 |
| 4731690 | Real load unbalance protection system for parallel variable speed constant frequency electrical power systems | Donal E. Baker | 1988-03-15 |
| 4728806 | DC link variable speed constant frequency power source paralleling controls | Donal E. Baker | 1988-03-01 |
| 4724374 | Solid state current limited power controller for DC circuits | — | 1988-02-09 |
| 4707142 | Master clock system for a parallel variable speed constant frequency power system | Donal E. Baker | 1987-11-17 |