Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8816729 | Phase-locked-loop with quadrature tracking filter for synchronizing an electric grid | Russel J. Kerkman, Ahmed Mohamed Sayed Ahmed, Brian J. Seibel | 2014-08-26 |
| 8704481 | Choke with current sensor | Rangarajan M. Tallam, Russel J. Kerkman | 2014-04-22 |
| 8704571 | Phase-locked-loop with quadrature tracking filter for synchronizing an electric grid | Russel J. Kerkman, Ahmed Mohamed Sayed Ahmed, Brian J. Seibel | 2014-04-22 |
| 8319466 | Modular line-to-ground fault identification | Russel J. Kerkman, Rangarajan M. Tallam | 2012-11-27 |
| 7894169 | High resistance ground protection employing AC drive characteristics | Russel J. Kerkman, David Dahl, Jeffrey D. McGuire, Nickolay N. Guskov | 2011-02-22 |