MCGRAW-EDISON COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 985
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 5154
 
 
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 391
 
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 381
 
 
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 374
 
 
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131
 
 
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
 
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 173
 
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 165
 
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1153

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7133271 Switchgear with embedded electronic controlsDec 23, 03Nov 07, 06[H01H]
7128619 Connector system and method for securing a cable in a connector systemNov 05, 04Oct 31, 06[H01R]
6888086 Solid dielectric encapsulated interrupterSep 30, 02May 03, 05[H01H]
6840432 Solder application techniqueApr 21, 03Jan 11, 05[B23K]
6833518 Load tap changer with direct drive and brakeNov 06, 03Dec 21, 04[H01H]
6744255 Grounding device for electric power distribution systemsOct 30, 02Jun 01, 04[H01R, G01R, H01H, H02H]
6717395 Current transformer based high voltage measurement apparatusMay 31, 01Apr 06, 04[G01R]
6693247 Load tap changer with direct drive and brakeApr 25, 01Feb 17, 04[H01H]
6680608 Measuring current through an electrical conductorFeb 27, 02Jan 20, 04[G01R]
6600124 Safety interlock between a vacuum interrupter and a disconnect switchFeb 28, 01Jul 29, 03[H01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7535233 Traveling wave based relay protectionExpiredJul 15, 04May 19, 09[G01R]
7304262 Vacuum encapsulation having an empty chamberExpiredMar 16, 04Dec 04, 07[H01H]
6933824 Polymer sheet core and coil insulation for transformersExpiredAug 14, 03Aug 23, 05[H01F]
6921989 Electrical switchgear with synchronous control system and actuatorExpiredNov 22, 02Jul 26, 05[H01H]
6757963 Method of joining components using a silver-based compositionExpiredJan 23, 02Jul 06, 04[H01C]
6735068 Electrical apparatus employing one or more housing segmentsExpiredMar 29, 01May 11, 04[H02H]
6702973 Method of sealing a stud in a bushingExpiredFeb 28, 02Mar 09, 04[B29C]
2003/0123,212 Control system for electrical switchgearAbandonedFeb 07, 02Jul 03, 03[H01H]
6575355 Solder application techniqueExpiredJun 05, 01Jun 10, 03[B23K, C23L, H05H]
6549880 Reliability of electrical distribution networksExpiredSep 15, 99Apr 15, 03[G06F]
6519129 Surge arrester module with bonded component stackExpiredNov 02, 99Feb 11, 03[H02H]
2002/0168,887 Venting means for separable connectorsAbandonedMay 09, 01Nov 14, 02[H01R]
6372994 Wrapped film sealing system for electrical equipmentExpiredJan 11, 00Apr 16, 02[H01B]
6341054 Intelligent power distribution networkExpiredDec 10, 99Jan 22, 02[H02H]
6279811 Solder application techniqueExpiredMay 12, 00Aug 28, 01[B23K]
6261137 Conductor connection systemExpiredMay 05, 99Jul 17, 01[H01R]
6247003 Current transformer saturation correction using artificial neural networksExpiredMar 24, 99Jun 12, 01[G06N]
6008975 Self-compressive surge arrester module and method of making sameExpiredNov 20, 98Dec 28, 99[H02H]
4931896 Distribution line switchgear control with isolated cascaded power suppliesExpiredMar 14, 85Jun 05, 90[H02H]
4912591 Distribution line switchgear control employing a precision rectifierExpiredMar 14, 85Mar 27, 90[H02H]

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