MCGRAW-EDISON COMPANY

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 1072
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 6131
 
 
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 568
 
 
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 376
 
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 367
 
 
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2120
 
 
 
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 177
 
 
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 167
 
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 150
 
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1120

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7,535,233 Traveling wave based relay protectionJul 15, 04May 19, 09[G01R]
7,304,262 Vacuum encapsulation having an empty chamberMar 16, 04Dec 04, 07[H01H]
7,133,271 Switchgear with embedded electronic controlsDec 23, 03Nov 07, 06[H01H]
7,128,619 Connector system and method for securing a cable in a connector systemNov 05, 04Oct 31, 06[H01R]
6,921,989 Electrical switchgear with synchronous control system and actuatorNov 22, 02Jul 26, 05[H01H]
6,888,086 Solid dielectric encapsulated interrupterSep 30, 02May 03, 05[H01H]
6,840,432 Solder application techniqueApr 21, 03Jan 11, 05[B23K]
6,833,518 Load tap changer with direct drive and brakeNov 06, 03Dec 21, 04[H01H]
6,744,255 Grounding device for electric power distribution systemsOct 30, 02Jun 01, 04[G01R, H01R, H01H, H02H]
6,717,395 Current transformer based high voltage measurement apparatusMay 31, 01Apr 06, 04[G01R]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
6,933,824 Polymer sheet core and coil insulation for transformersAug 14, 03Aug 23, 05[H01F]
6,757,963 Method of joining components using a silver-based compositionJan 23, 02Jul 06, 04[H01C]
6,735,068 Electrical apparatus employing one or more housing segmentsMar 29, 01May 11, 04[H02H]
6,702,973 Method of sealing a stud in a bushingFeb 28, 02Mar 09, 04[B29C]
2003/0123,212 Control system for electrical switchgearFeb 07, 02Jul 03, 03[H01H]
6,575,355 Solder application techniqueJun 05, 01Jun 10, 03[B23K, C23L, H05H]
6,549,880 Reliability of electrical distribution networksSep 15, 99Apr 15, 03[G06F]
2002/0168,887 Venting means for separable connectorsMay 09, 01Nov 14, 02[H01R]
6,372,994 Wrapped film sealing system for electrical equipmentJan 11, 00Apr 16, 02[H01B]
6,341,054 Intelligent power distribution networkDec 10, 99Jan 22, 02[H02H]
6,279,811 Solder application techniqueMay 12, 00Aug 28, 01[B23K]
6,261,137 Conductor connection systemMay 05, 99Jul 17, 01[H01R]
6,247,003 Current transformer saturation correction using artificial neural networksMar 24, 99Jun 12, 01[G06N]
6,008,975 Self-compressive surge arrester module and method of making sameNov 20, 98Dec 28, 99[H02H]
4,931,896 Distribution line switchgear control with isolated cascaded power suppliesMar 14, 85Jun 05, 90[H02H]
4,912,591 Distribution line switchgear control employing a precision rectifierMar 14, 85Mar 27, 90[H02H]
4,757,296 Electrical fuselinksMar 26, 87Jul 12, 88[H01H]
4,717,902 Electrical components incorporating a temperature responsive deviceJul 16, 86Jan 05, 88[H01H, H02H]
D291925 Framing projector for track lighting systemDec 31, 84Sep 15, 87[]
D291929 Track light extension armMar 12, 84Sep 15, 87[]

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