Inventor · disambiguated record
Roger Ledru
Also filed as: LEDRU ROGER
10 granted patents·50 citations·filing 1988–2017
86Inventor score
Top patents by PatentIndex Score
10 records- 0163US10692673B2Electric arc-blast nozzle and a circuit breaker including such a nozzleGENERAL ELECTRIC TECHNOLOGY GMBH·Filed 2017·Granted Jun 23, 2020·1 cites·20 claims
- 0258US10170256B2Circuit breaker equipped with an extensible exhaust coverGENERAL ELECTRIC TECHNOLOGY GMBH·Filed 2016·Granted Jan 1, 2019·1 cites·8 claims
- 0358US8530774B2High voltage circuit breaker with improved gas exhaustGRIESHABER WOLFGANG·Filed 2008·Granted Sep 10, 2013·4 cites·10 claims
- 0458US8232497B2Relief valve for discharging a dielectric gas between two volumes of a high-voltage or medium-voltage interrupting chamberGREGOIRE CYRIL·Filed 2010·Granted Jul 31, 2012·2 cites·12 claims
- 0551US5898150AGas-blast high-voltage circuit-breakerGEC ALSTHOM & D SA·Filed 1997·Granted Apr 27, 1999·18 cites·2 claims
- 0647US4940961ABraking resistor for a high tension electrical networkALSTHOM SA·Filed 1988·Granted Jul 10, 1990·7 cites·9 claims
- 0746US5997616AMoisture absorption device for electrical apparatus containing dielectric gasGEC ALSTHOM T & D SA·Filed 1998·Granted Dec 7, 1999·14 cites·4 claims
- 0839US6987234B2Circuit breaker comprising a control assembly and interrupting chamber and method of assemblyALSTOM·Filed 2003·Granted Jan 17, 2006·1 cites·17 claims
- 0931US10262813B2Circuit breaker containing a gas escape hood with sealable openingGENERAL ELECTRIC TECHNOLOGY GMBH·Filed 2015·Granted Apr 16, 2019·0 cites·8 claims
- 1029US6284993B1Ball-locked mechanism for inserting a closure resistorALSTOM HOLDINGS·Filed 1999·Granted Sep 4, 2001·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →