Assignee
GEC ALSTHOM T & D SA
FR·75 granted patents·1,188 citations·filing 1993–1998
Top patents by PatentIndex Score
75 records- 0194US5414400ARogowski coilGEC ALSTHOM T & D SA·Filed 1993·Granted May 9, 1995·137 cites·10 claims
- 0284US5461309ADevice for measuring temperature using a Rogowski coilGEC ALSTHOM T & D SA·Filed 1994·Granted Oct 24, 1995·53 cites·1 claims
- 0379US6125692ADensity sensor for monitoring the rate of leakage from a switchgear case with improved reliabilityGEC ALSTHOM T & D SA·Filed 1998·Granted Oct 3, 2000·31 cites·3 claims
- 0479US5387890ASuperconductive coil assembly particularly for a current limiter, and a current limiter including such a coil assemblyGEC ALSTHOM T & D SA·Filed 1993·Granted Feb 7, 1995·44 cites·3 claims
- 0576US6013888AGenerator circuit breaker having a single mechanical control mechanismGEC ALSTHOM T & D SA·Filed 1998·Granted Jan 11, 2000·29 cites·8 claims
- 0676US5438256AApparatus and method for measurement from the ground for high voltage overhead linesGEC ALSTHOM T & D SA·Filed 1993·Granted Aug 1, 1995·40 cites·4 claims
- 0775US5936213AOperating mechanism for a five-pole phase inverter isolating switchGEC ALSTHOM T & D SA·Filed 1998·Granted Aug 10, 1999·29 cites·1 claims
- 0871US6121566ASwitchgear for a power station generator and a transformer, with a three-position disconnector connected to the transformerGEC ALSTHOM T & D SA·Filed 1998·Granted Sep 19, 2000·26 cites·1 claims
- 0971US5668360ACircuit-breaker having two interrupting chambers per pole with drive mechanism and drive rods isolating insert capacitorsGEC ALSTHOM T & D SA·Filed 1996·Granted Sep 16, 1997·26 cites·2 claims
- 1070US5952635AGenerator circuit breakerGEC ALSTHOM T & D SA·Filed 1998·Granted Sep 14, 1999·26 cites·12 claims
- 1170US5693873AMethod and a system for determining the density of an insulating gas in an electrical apparatusGEC ALSTHOM T & D SA·Filed 1996·Granted Dec 2, 1997·23 cites·8 claims
- 1269US6023404AMethod of monitoring and diagnosing the operation of high voltage electrical apparatusGEC ALSTHOM T & D SA·Filed 1998·Granted Feb 8, 2000·23 cites·3 claims
- 1366US5841614AHigh voltage circuit breaker with insertion of resistance on closureGEC ALSTHOM T & D SA·Filed 1997·Granted Nov 24, 1998·20 cites·2 claims
- 1466US5512869ALinear control apparatus for a circuit-breakerGEC ALSTHOM T & D SA·Filed 1994·Granted Apr 30, 1996·18 cites·7 claims
- 1564US5384678AControl and self-monitoring system, in particular for a multipole electrical apparatus such as a high tension circuit breakerGEC ALSTHOM T & D SA·Filed 1993·Granted Jan 24, 1995·24 cites·8 claims
- 1663US6205846B1Method of determining with great accuracy the rate of leakage from the case of an electrical apparatusGEC ALSTHOM T & D SA·Filed 1998·Granted Mar 27, 2001·18 cites·7 claims
- 1761US5994999ALow voltage link for transmitting on/off ordersGEC ALSTHOM T & D SA·Filed 1998·Granted Nov 30, 1999·32 cites·4 claims
- 1859US5898151ACircuit-breaker with a disconnectorGEC ALSTHOM T & D SA·Filed 1998·Granted Apr 27, 1999·18 cites·4 claims
- 1959US5444599ACapacitor having high stability with temperatureGEC ALSTHOM T & D SA·Filed 1994·Granted Aug 22, 1995·24 cites·14 claims
- 2058US5930415AMonitoring device for a gas-insulated cableGEC ALSTHOM T & D SA·Filed 1997·Granted Jul 27, 1999·17 cites·9 claims
- 2158US5808257AHigh-voltage gas-blast circuit-breakerGEC ALSTHOM T & D SA·Filed 1997·Granted Sep 15, 1998·15 cites·4 claims
- 2258US5715134AScreened medium-voltage substationGEC ALSTHOM T & D SA·Filed 1996·Granted Feb 3, 1998·22 cites·10 claims
- 2358US5571990AGas-insulated single-phase cable for transporting electricityGEC ALSTHOM T & D SA·Filed 1994·Granted Nov 5, 1996·23 cites·6 claims
- 2458US5552978ADevice for supplying a voltage to an electronic circuit, in particular an electronic circuit associated with a current sensor disposed on an electrical lineGEC ALSTHOM T & D SA·Filed 1994·Granted Sep 3, 1996·27 cites·2 claims
- 2556US6118257ASwitchgear for a power station generator and a transformer with a three-position disconnectorGEC ALSTHOM T & D SA·Filed 1998·Granted Sep 12, 2000·15 cites·2 claims
- 2656US5834909ADevice for actuating electrical equipment, in particular a high-voltage section switch or a high-voltage grounding section switchGEC ALSTHOM T & D SA·Filed 1996·Granted Nov 10, 1998·14 cites·8 claims
- 2755US6018133ALow-compression puffer circuit-breakerGEC ALSTHOM T & D SA·Filed 1998·Granted Jan 25, 2000·13 cites·8 claims
- 2855US5742017ACircuit-breaker provided with a closure resistance having an insertion assemblyGEC ALSTHOM T & D SA·Filed 1996·Granted Apr 21, 1998·14 cites·5 claims
- 2954US5571989AGas-insulated high-tension line for long distancesGEC ALSTHOM T & D SA·Filed 1994·Granted Nov 5, 1996·21 cites·7 claims
- 3051US5736704ACircuit-breaker with grounded metal enclosureGEC ALSTHOM T & D SA·Filed 1997·Granted Apr 7, 1998·20 cites·4 claims
- 3151US5436797AModular station of the metal-clad type and of reduced size, with a shortened set of busbarsGEC ALSTHOM T & D SA·Filed 1993·Granted Jul 25, 1995·15 cites·6 claims
- 3249US6015960ACompressed gas interrupter with a rack mechanismGEC ALSTHOM T & D SA·Filed 1998·Granted Jan 18, 2000·13 cites·7 claims
- 3348US5955715ACircuit breaker having a closure resistanceGEC ALSTHOM T & D SA·Filed 1998·Granted Sep 21, 1999·10 cites·5 claims
- 3448US5910872AMethod of discriminating between an internal arc and an interruption arc detected inside a metal-clad electrical installationGEC ALSTHOM T & D SA·Filed 1997·Granted Jun 8, 1999·13 cites·6 claims
- 3548US5898556AProtection system for a three-phase distribution transformer insulated in a liquid dielectricGEC ALSTHOM T & D SA·Filed 1997·Granted Apr 27, 1999·22 cites·5 claims
- 3647US5859399ACircuit breaker having semi-moving pistonGEC ALSTHOM T & D SA·Filed 1997·Granted Jan 12, 1999·10 cites·7 claims
- 3747US5780799AReduced autocompression circuit-breakerGEC ALSTHOM T & D SA·Filed 1997·Granted Jul 14, 1998·13 cites·8 claims
- 3846US5997616AMoisture absorption device for electrical apparatus containing dielectric gasGEC ALSTHOM T & D SA·Filed 1998·Granted Dec 7, 1999·14 cites·4 claims
- 3946US5889467AMethod of monitoring a leakage rate from the envelope of high voltage electrical apparatusGEC ALSTHOM T & D SA·Filed 1998·Granted Mar 30, 1999·12 cites·4 claims
- 4046US5756952AStraight spring operating mechanism for high-voltage circuit-breakersGEC ALSTHOM T & D SA·Filed 1997·Granted May 26, 1998·9 cites·9 claims
- 4146US5600111ACircuit-breaker having low self-compressionGEC ALSTHOM T & D SA·Filed 1995·Granted Feb 4, 1997·10 cites·10 claims
- 4245US5939692AGas-filled interrupter with compressible thermal expansion chamberGEC ALSTHOM T & D SA·Filed 1998·Granted Aug 17, 1999·9 cites·4 claims
- 4344US5616898AMedium-voltage or high-voltage circuit-breakerGEC ALSTHOM T & D SA·Filed 1995·Granted Apr 1, 1997·10 cites·12 claims
- 4444US5569840AScreened electrical line control deviceGEC ALSTHOM T & D SA·Filed 1995·Granted Oct 29, 1996·9 cites·12 claims
- 4544US5530200AThree-phase metal-clad electricity line, and method of manufactureGEC ALSTHOM T & D SA·Filed 1993·Granted Jun 25, 1996·13 cites·22 claims
- 4643US5604437ADevice for measuring circuit breaker wearGEC ALSTHOM T & D SA·Filed 1995·Granted Feb 18, 1997·13 cites·6 claims
- 4742US5424503APuffer type circuit interrupter with improved blast valve and permanent contactsGEC ALSTHOM T & D SA·Filed 1993·Granted Jun 13, 1995·9 cites·8 claims
- 4842US5373131APuffer circuit-breaker with two concentric interrupting chambersGEC ALSTHOM T & D SA·Filed 1993·Granted Dec 13, 1994·6 cites·7 claims
- 4941US5510591AHigh tension circuit breaker capable of interrupting fault currents having a delayed zero crossingGEC ALSTHOM T & D SA·Filed 1994·Granted Apr 23, 1996·11 cites·7 claims
- 5040US5828540AMethod of protecting against failure of a circuit breakerGEC ALSTHOM T & D SA·Filed 1997·Granted Oct 27, 1998·10 cites·2 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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