ABB POWER T&D COMPANY INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1562
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 11148
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 490
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 3117
 
  
 
H04M TELEPHONIC COMMUNICATION 2161
 
  
 
B26D CUTTING; DETAILS COMMON TO MACHINES FOR SEVERING, e.g. BY CUTTING, PERFORATING, PUNCHING, STAMPING-OUT 136
 
  
 
B26F PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING 115
 
  
 
F16M FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS134
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6185482 System and method for rms overcurrent backup functionMar 10, 98Feb 06, 01[H02J]
6173216 Protective relay with improved, sub-window cosine filterApr 15, 98Jan 09, 01[H02J, H02H]
6154687 Modified cosine filtersApr 15, 98Nov 28, 00[H02J, H02H]
6137666 High speed, selective protective relaysJan 21, 99Oct 24, 00[H02H]
6115675 Double interpolation anti-skew compensation of sampled analog data points in a protective relayMar 02, 98Sep 05, 00[G06F, G01R]
6081768 Digital peak detectorSep 15, 97Jun 27, 00[H02H]
D422557 Transformer parking standApr 14, 99Apr 11, 00[1302]
5987393 Method of configuring a microprocessor-based relay for use in overcurrent protectionFeb 20, 97Nov 16, 99[H02H]
5963734 Method and apparatus for configuring an intelligent electronic device for use in supervisory control and data acquisition system verificationApr 03, 97Oct 05, 99[G06F]
D412859 Meter coverJun 24, 98Aug 17, 99[1004]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6453248 High impedance fault detectionExpiredJul 21, 98Sep 17, 02[G06F, G01R]
6397156 Impedance measurement system for power system transmission linesExpiredNov 17, 98May 28, 02[G01R]
6336059 Reach-measurement method for distance relays and fault locators on series-compensated transmission lines using local informationExpiredNov 17, 98Jan 01, 02[G05B]
6298309 Current based frequency tracking method and apparatusExpiredMar 05, 99Oct 02, 01[G01R]
6209938 Lifting tool for safe 90 degree rotationExpiredDec 28, 99Apr 03, 01[B66C]
5959523 Magnetic core structureExpiredOct 15, 96Sep 28, 99[H01F]
5863455 Colloidal insulating and cooling fluidExpiredJul 14, 97Jan 26, 99[F25B, B01J, H01F, H05K]
5696364 Combined interrupter disconnect switch blade for high voltage switchExpiredJun 17, 94Dec 09, 97[H01H]
5672919 Low current binary input subsystemExpiredMar 24, 95Sep 30, 97[H01H]
5608371 Repairable amorphous metal transformer jointExpiredJan 31, 96Mar 04, 97[H01F]
5507322 Device and method for forming planar disk transformer windingsExpiredDec 14, 93Apr 16, 96[B21F]
5488565 Tamper detection methods and apparatus for load management terminalsExpiredMay 28, 93Jan 30, 96[G08B, G01R]
5453591 Sensing structure for component wear in high voltage circuit interruptersExpiredApr 05, 94Sep 26, 95[H01H]
5412624 Real-life timer interval adjustmentExpiredOct 13, 93May 02, 95[H03L, G04B, G06F]
5406818 Opening apparatus having an alignment system for producing a continuous metal strip from a split-tubeExpiredSep 15, 93Apr 18, 95[B21C]
5398402 Method of repairing a transformer having a repairable amorphous metal transformer jointExpiredDec 12, 91Mar 21, 95[B23P, H01F]
5369388 LTC compensating winding for parallel operation of transformersExpiredApr 27, 93Nov 29, 94[H01F]
5359874 Method and apparatus for production of continuous metal stripExpiredNov 12, 91Nov 01, 94[B21C]
5337034 Transformer mounting assemblyExpiredApr 02, 93Aug 09, 94[H01F]
5282108 Surge protector for a watthour meterExpiredOct 03, 91Jan 25, 94[H02H]

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