Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8559146 | Line current differential protection upon loss of an external time reference | Normann Fischer, Luther S. Anderson | 2013-10-15 |
| 8553379 | Transformer differential protection | Normann Fischer | 2013-10-08 |
| 8441768 | Systems and methods for independent self-monitoring | — | 2013-05-14 |
| 8289668 | Charging current compensation for line current differential protection | Normann Fischer | 2012-10-16 |
| 8154836 | Line current differential protection upon loss of an external time reference | Normann Fischer, Luther S. Anderson | 2012-04-10 |
| 8140291 | Stator turn fault detection apparatus and method for induction machine | Somakumar Ramachandrapanicker, Arvind Kumar Tiwari, Arijit Banerjee | 2012-03-20 |
| 8135551 | Robust on line stator turn fault identification system | Arvind Kumar Tiwari, William James Premerlani, Somakumar Ramachandrapanicker, Bhaskar Sen, Arijit Banerjee | 2012-03-13 |
| 8111492 | Apparatus, system, and method for creating one or more slow-speed communications channels utilizing a real-time communication channel | Tony J. Lee, Luther S. Anderson | 2012-02-07 |
| 7822578 | Systems and methods for predicting maintenance of intelligent electronic devices | Lawrence A. Sollecito, Jeffrey Mazereeuw, Zhihong Mao | 2010-10-26 |
| 7693607 | Protection and control system for electric power networks with signal and command interfaces at the primary equipment | Dale S. Finney, Jeffrey Mazereeuw, Ioan Marusca | 2010-04-06 |
| 7567881 | Self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers | William James Premerlani, Iulian Raducanu | 2009-07-28 |
| 7552367 | Fault recording and sequence of events recording device capable of recording communication-based signals related to electrical power systems | Jeffrey Mazereeuw | 2009-06-23 |
| 7528611 | Methods and system for detecting winding faults in a generator with parallel windings | Dale S. Finney, Michael Graham McClure | 2009-05-05 |
| 7472026 | Multi-ended fault location system | William James Premerlani, Mark Gerard Adamiak | 2008-12-30 |
| 7444248 | System and method for synchronized phasor measurement | William James Premerlani, Mark Gerard Adamiak | 2008-10-28 |
| 7253634 | Generator protection methods and systems self-tuning to a plurality of characteristics of a machine | Dale S. Finney, Michael Graham McClure | 2007-08-07 |
| 7126800 | Method and system for communications channel delay asymmetry compensation using global positioning systems | William James Premerlani, Ilia Voloh | 2006-10-24 |
| 6829544 | Line current differential protective relaying method and relay for in-zone tapped transformers | Colin B. Campbell | 2004-12-07 |
| 6529010 | Location of fault on series-compensated power transmission lines | Murari Saha, Jan Izykowski, Eugeniusz Rosolowski | 2003-03-04 |
| 6483680 | Magnetizing inrush restraint method and relay for protection of power transformers | Ara Kulidjian | 2002-11-19 |
| 6442010 | Differential protective relay for electrical buses with improved immunity to saturation of current transformers | Ara Kulidjian | 2002-08-27 |
| 6420875 | CVT transient filter | Vince Asaro | 2002-07-16 |