ABB T & D TECHNOLOGY LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 496
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 480
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 374
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
1302 POWER TRANSFORMERS, RECTIFIERS, BATTERIES AND ACCUMULATORS134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D613687 Electrical transformerMay 05, 09Apr 13, 10[1302]
7218493 Circuit breakers with integrated current and/or voltage sensorsDec 27, 02May 15, 07[H02H]
7129688 Method for on-line calibration of low accuracy voltage sensor through communication busDec 27, 02Oct 31, 06[G01R]
7064644 Winding for a transformer or a coil and method for windingNov 25, 02Jun 20, 06[H01F]
7050280 High speed transfer systemDec 27, 02May 23, 06[H02H]
7023312 Integrated cooling duct for resin-encapsulated distribution transformer coilsDec 21, 01Apr 04, 06[H01F]
6778060 Winding for a transformer or a coil and method for producing the windingNov 25, 02Aug 17, 04[H01F]
6693777 Method for controlling the operation of a switching deviceMay 21, 02Feb 17, 04[H02H]
6661322 Sound-insulating device for an induction machineMar 22, 02Dec 09, 03[H01F]
6608481 Pole of a circuit breaker with an integrated optical current sensorFeb 21, 01Aug 19, 03[G01R, H01H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7210218 Method for fabricating electrical core sheet assembliesExpiredJul 03, 02May 01, 07[H01F]
6633107 Low noise transformerExpiredOct 12, 01Oct 14, 03[H01L]
6518865 Electric switching deviceExpiredFeb 26, 02Feb 11, 03[H01H]
6416099 Lifting tool for automatic centering and 180 degree rotationExpiredNov 30, 00Jul 09, 02[B66C]
2002/0084,879 Method of manufacturing an electrical-power transformerAbandonedDec 29, 00Jul 04, 02[H01F]
6388224 Systems for robotic stud arc welding without ferruleExpiredDec 28, 99May 14, 02[B23K]
6371362 Robotic welding of brackets inside metal enclosuresExpiredDec 23, 99Apr 16, 02[B23K, B07B]
6322117 Lifting tool for safe 105 degree rotationExpiredDec 28, 99Nov 27, 01[B66C]
6315342 Apparatus and method for feeding of parts with open internal geometries using pressurized gasExpiredDec 23, 99Nov 13, 01[B25J]
6311535 High voltage bushing embossing punch tool and methodExpiredDec 28, 99Nov 06, 01[B21D]
6269677 Press brake back gauge fingerExpiredDec 28, 99Aug 07, 01[B21D]
6209938 Lifting tool for safe 90 degree rotationExpiredDec 28, 99Apr 03, 01[B66C]

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