Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8884464 | Twin boost converter with integrated charger for UPS system | Chandrasekaran Jayaraman, Pradeep Tolakanahalli | 2014-11-11 |
| 8878389 | Method and apparatus for providing uninterruptible power | Milind Dighrasker | 2014-11-04 |
| 8698354 | System and method for bidirectional DC-AC power conversion | Rajesh Ghosh, Raju Narasimha, Mahesh Lipare | 2014-04-15 |
| 8552589 | Digital control method for operating the UPS systems in parallel | Rajesh Ghosh, Mahima Agrawal, Pradeep Thalli | 2013-10-08 |
| 8379359 | Uninterruptible power supply | Mirza A. Beg, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2013-02-19 |
| 8228046 | Apparatus and method for operating an uninterruptible power supply | Michael J. Ingemi | 2012-07-24 |
| 8143744 | Method and apparatus for providing uninterruptible power | Henning Roar Nielsen, Ranganathan Gurunathan, Pothapragada Pavana Kumar | 2012-03-27 |
| 8134811 | Uninterruptible power supply | Mirza A. Beg, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2012-03-13 |
| 8116105 | Systems and methods for uninterruptible power supply control | Pyboyina Msvvsv Prasad, Rajesh Ghosh, Mahima Agrawal | 2012-02-14 |
| 7881079 | UPS frequency converter and line conditioner | Pyboyina Msvvsv Prasad, Rajesh Ghosh | 2011-02-01 |
| 7843676 | Uninterruptible power supply | Mirza A. Beg, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2010-11-30 |
| 7705489 | Method and apparatus for providing uninterruptible power | Henning Roar Nielsen, Ranganathan Gurunathan, Pothapragada Pavana Kumar | 2010-04-27 |
| 7521823 | Uninterruptible power supply | Mirza A. Beg, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2009-04-21 |
| 7259477 | Uninterruptible power supply | Mirza A. Beg, Mark R. Melanson, Edward Kotlyar, Jeffrey B. Samstad | 2007-08-21 |
| 6201319 | Uninterruptible power supply | James Simonelli, Michael J. Ingemi, Donald Lee Charlantini, David A. Colucci | 2001-03-13 |
| 5982652 | Method and apparatus for providing uninterruptible power using a power controller and a redundant power controller | James Simonelli, Michael J. Ingemi, Donald Lee Charlantini, David A. Colucci | 1999-11-09 |