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| Patent ID | Title | Date Filed |
| 6807495 | Plausibility checking of voltage transformers in substations
| February 26, 2003 |
| 6782329 | Detection of arcing faults using bifurcated wiring system
| January 17, 2001 |
| 6780660 | System for testing electronic devices
| October 10, 2002 |
| 6778919 | Method for identification of an oscillation in an electrical power supply system
| October 18, 2002 |
| 6772357 | Computer system testing by simulating a power supply enable if power supply good indicator is negative
| January 24, 2001 |
| 6772051 | Power plant operation control system and a power plant maintaining and managing method
| July 9, 2002 |
| 6756786 | Method for detecting line-to-ground fault location in power network
| November 26, 2002 |
| 6741916 | Accident point locating system
| November 13, 2000 |
| 6735496 | System and method of monitoring multiple control loops in a heater system
| October 17, 2002 |
| 6721670 | Crossover fault classification for power lines with parallel circuits
| September 13, 2001 |
| 6718272 | Fast transient protection for RF plasma generator
| November 1, 2000 |
| 6711723 | Hybrid semi-physical and data fitting HEMT modeling approach for large signal and non-linear microwave/millimeter wave circuit CAD
| April 23, 2001 |
| 6691066 | Measurement fault detection
| August 28, 2001 |
| 6691051 | Transient distance to fault measurement
| August 14, 2001 |
| 6687574 | System and method for surveying utility outages
| November 1, 2001 |
| 6651013 | Method and apparatus for determining the location of a short in an electrical wire network
| November 16, 2000 |
| 6633166 | Method for generating an error signal identifying a short circuit
| August 27, 2001 |
| 6615146 | Failure detection of an isolation device with PFA signal generation in a redundant power supply system
| November 22, 2000 |
| 6601001 | Fault-detection for power lines
| January 13, 2000 |
| 6600973 | Method and apparatus for providing power to a utility network
| November 24, 1999 |
| 6597999 | Method and system for real-time prediction of zero crossings of fault currents
| December 20, 1999 |
| 6590397 | Line differential protection system for a power transmission line
| June 29, 2001 |
| 6584417 | Method and directional element for fault direction determination in a capacitance-compensated line
| October 22, 1999 |
| 6577987 | Operational monitoring for a converter
| November 20, 2000 |
| 6575010 | Method and system for detecting and cross-checking faulty sensors in liquid level indicators and controllers
| November 29, 2001 |
| 6571182 | Method and system for consolidating phase current samples
| February 5, 2001 |
| 6566889 | Line diagnostics for wireline modems
| September 4, 2001 |
| 6560556 | Non-invasive process for circuit defect isolation using thermal expansion property of thermodynamics
| November 30, 1999 |
| 6559652 | Method of statistically balancing current transformer measurements for differential busbar protection
| November 15, 2001 |
| 6531972 | Apparatus and method including an efficient data transfer for analog to digital converter testing
| April 19, 2001 |
| 6526366 | Imaging sensor defect map storage
| May 18, 2000 |
| 6525543 | Fault type selection system for identifying faults in an electric power system
| October 20, 2000 |
| 6518767 | Line differential protection system for a power transmission line
| October 19, 2000 |
| 6498997 | Method and apparatus for producing a solid actuator and medium storing a program for controlling the same
| August 19, 1998 |
| 6477475 | Fault point location system
| November 9, 1999 |
| 6476613 | Method of fault location in parallel transmission lines with series compensation
| July 10, 2001 |
| 6459284 | Device having periodic wiring structure and test device therefor
| September 20, 2000 |
| 6459269 | Capacitance rejecting ground fault protecting apparatus and method
| April 2, 2001 |
| 6456947 | Digital current differential system
| October 30, 2000 |
| 6456946 | System and method for motor fault detection
| February 25, 2000 |
| 6453248 | High impedance fault detection
| July 21, 1998 |
| 6442493 | Method of detecting a fault in a monitored section of an electric transmission line using distance protection techniques
| April 26, 1999 |
| 6430728 | Acoustic 3D analysis of circuit structures
| September 30, 1999 |
| 6421811 | Defect detection via acoustic analysis
| September 30, 1999 |
| 6421618 | Incipient leakage current fault detection apparatus and method
| December 28, 1998 |
| 6415244 | Power monitoring system and method
| March 31, 1999 |
| 6397156 | Impedance measurement system for power system transmission lines
| November 17, 1998 |
| 6397114 | Device in a process system for detecting events
| May 3, 1999 |
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