Inventor · disambiguated record
Alfred Permuy
Also filed as: HAMPTON KEITH · PERMUY ALFRED
41 granted patents·10 pending applications·555 citations·filing 1987–2024
98Inventor score
Files withGE ENERGY POWER CONVERSION TECHNOLOGY LTD14VALEO ELECTRONIQUE11PERMUY ALFRED9METRAVIB SA3SCHLUMBERGER TECHNOLOGY CORP3
Top patents by PatentIndex Score
51 records- 0197US8578902B2Corona ignition with self-tuning power amplifierHAMPTON KEITH·Filed 2010·Granted Nov 12, 2013·26 cites·7 claims
- 0294US8471604B2Gate drive circuit and associated methodPERMUY ALFRED·Filed 2012·Granted Jun 25, 2013·22 cites·23 claims
- 0394US7958772B2Density and viscosity sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Jun 14, 2011·25 cites·4 claims
- 0494US7874199B2Density and viscosity sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Jan 25, 2011·38 cites·17 claims
- 0593US8844490B2Corona igniter having controlled location of corona formationBURROWS JOHN ANTONY·Filed 2012·Granted Sep 30, 2014·9 cites·20 claims
- 0689US5936325ASynchronous type electrical machineVALEO ELECTRONIQUE·Filed 1997·Granted Aug 10, 1999·69 cites·5 claims
- 0788US6002219AAlternator used both as a generator and as a motor for starting the engine of a self-propelled vehicleVALEO ELECTRONIQUE·Filed 1997·Granted Dec 14, 1999·54 cites·5 claims
- 0887US8464679B2Corona tip insulatorPERMUY ALFRED·Filed 2010·Granted Jun 18, 2013·5 cites·17 claims
- 0987US6031306AElectric motor incorporating its own electronic controlVALEO ELECTRONIQUE·Filed 1997·Granted Feb 29, 2000·63 cites·17 claims
- 1078US5311140ACircuit for measuring variations in the capacitance of a variable capacitor using a continuously rebalanced detection bridgeSAGEM·Filed 1990·Granted May 10, 1994·34 cites·14 claims
- 1177US2025023482A1Power supply system for a plurality of electrolyzers and associated facility and methodGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2024·Application pending·0 cites
- 1276US9312705B2Capacitor balancing circuit and control method for an electronic device such as a multilevel power inverterPERMUY ALFRED·Filed 2011·Granted Apr 12, 2016·6 cites·28 claims
- 1373US9093426B2Electronic semi-conductor device intended for mounting in a pressed stack assembly, and a pressed stack assembly comprising such deviceGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2013·Granted Jul 28, 2015·3 cites·10 claims
- 1470US9887697B2Gate drive circuit to reduce parasitic couplingGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2016·Granted Feb 6, 2018·2 cites·16 claims
- 1570US2025305722A1Method of heating a fluid and tube arrangement of a fluid heating furnace for such a methodGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2024·Application pending·0 cites
- 1669US9812922B2Active magnetic bearing comprising means for damping the radial motion of a shaft of a rotary machineGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2013·Granted Nov 7, 2017·2 cites·13 claims
- 1769US9413314B2Corona ignition with self-tuning power amplifierFEDERAL-MOGUL IGNITION COMPANY·Filed 2013·Granted Aug 9, 2016·3 cites·17 claims
- 1867US10224829B2Drive train comprising a doubly fed electric machine and a band stop filter connected between an inverter and the rotor of the machinePERMUY ALFRED·Filed 2012·Granted Mar 5, 2019·2 cites·9 claims
- 1967US5781385AMethod and apparatus for protecting an adjustable impedance element controlling the power supply to an electric motor, in particular in a motor vehicleVALEO ELECTRONIQUE·Filed 1996·Granted Jul 14, 1998·28 cites·20 claims
- 2065US12413127B2Electric stabilisersGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2023·Granted Sep 9, 2025·0 cites·15 claims
- 2165US9356533B2Drive train comprising a doubly-fed electric machine and an inverter controlled according to a law limiting the delivered active powerPERMUY ALFRED·Filed 2012·Granted May 31, 2016·2 cites·20 claims
- 2263US5586086AMethod and a system for locating a firearm on the basis of acoustic detectionMETRAVIB R D S SA·Filed 1995·Granted Dec 17, 1996·63 cites·10 claims
- 2361US4873868AForce measurement sensor integrated on silicon, and a method of manufactureMETRAVIB SA·Filed 1987·Granted Oct 17, 1989·22 cites·7 claims
- 2461US2025279731A1Multilevel inverter and associated methodGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2024·Application pending·0 cites
- 2560US2025287482A1Power supply system for arc furnace and associated arc furnace and methodGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2024·Application pending·0 cites
- 2660US2025280476A1Power supply system for arc furnace and associated arc furnace and methodGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2024·Application pending·0 cites
- 2758US9444361B2Mechanical arrangement of a multilevel power converter circuitPERMUY ALFRED·Filed 2011·Granted Sep 13, 2016·1 cites·18 claims
- 2857US5375469ACapacitive acceleration sensor and its application in a non-servoed accelerometerSAGEM·Filed 1993·Granted Dec 27, 1994·17 cites·7 claims
- 2955US2024305211A1Arc furnacle facilityGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2024·Application pending·0 cites
- 3053US9387481B2Rotary drum apparatus comprising a rotary drum and at least one electric motor for driving the drum, with a stator extending against a part of circumference of the drumGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2013·Granted Jul 12, 2016·0 cites·19 claims
- 3149US9042130B2Power conversion system and drive chain comprising the power conversion systemGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2013·Granted May 26, 2015·0 cites·10 claims
- 3247US11108236B2Electrical energy storage module, associated system and methodGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2019·Granted Aug 31, 2021·0 cites·13 claims
- 3347US10170895B2Corona ignition with self-tuning power amplifierFED MOGUL IGNITION CO·Filed 2016·Granted Jan 1, 2019·0 cites·17 claims
- 3447US9225255B2Power supply system, comprising a converter connected to a network and a transformer connected in parallel relative to the converter to limit the homopolar current, and a drive chain comprising such a power supply systemGE ENERGY POWER CONVERSION TECHNOLOGY LTD·Filed 2013·Granted Dec 29, 2015·0 cites·12 claims
- 3547US6176361B1Friction clutch with low declutch forceVALEO·Filed 1997·Granted Jan 23, 2001·10 cites·15 claims
- 3646US2024305202A1Power supply system for arc furnace and associated arc furnace and methodGM ENERGY POWER CONVERSION TECH LIMITED·Filed 2024·Application pending·0 cites
- 3745US5784270AMethod of controlling an H-bridgeVALEO ELECTRONIQUE·Filed 1996·Granted Jul 21, 1998·13 cites·3 claims
- 3843US9641100B2High power converter comprising low power switches and a switch control device for generating a pulse with a reference value and at least two control valuesPERMUY ALFRED·Filed 2012·Granted May 2, 2017·0 cites·14 claims
- 3942US2013114320A1Device for balancing the voltage on the terminals of a capacitor of a set of capacitors, and voltage conversion system including such a balancing devicePERMUY ALFRED·Filed 2011·Application pending·0 cites
- 4041US9467064B2High power converter with low power transistors connected in parallelPERMUY ALFRED·Filed 2012·Granted Oct 11, 2016·0 cites·10 claims
- 4140US6615664B1Method of measuring pressure by means of a pressure gauge having a resonant elementSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Sep 9, 2003·1 cites·15 claims
- 4240US2015131349A1System and method for balancing multilevel power convertersGEN ELECTRIC·Filed 2013·Application pending·0 cites
- 4338US5973461AMethod and device for starting and synchronizing a three-phase motorVALEO ELECTRONIQUE·Filed 1997·Granted Oct 26, 1999·7 cites·7 claims
- 4437US2005135632A1Method and apparatus for detecting and locating noise sources not correlatedMETRAVIB SA·Filed 2003·Application pending·0 cites
- 4536US6307155B1Device for mechanically locking an electronic component with respect to a supportVALEO ELECTRONIQUE·Filed 1999·Granted Oct 23, 2001·5 cites·20 claims
- 4636US5995890AElectrohydraulic power steering system for a motor vehicleVALEO ELECTRONIQUE·Filed 1997·Granted Nov 30, 1999·7 cites·6 claims
- 4732US5952809AMethods and apparatus for controlling a synchronous electric motor, especially for a motorised fan unit for a motor vehicleVALEO ELECTRONIQUE·Filed 1997·Granted Sep 14, 1999·3 cites·14 claims
- 4831US6999881B2Method and apparatus for detecting and locating noise sources whether correlated or notMETRAVIB SA·Filed 2003·Granted Feb 14, 2006·3 cites·5 claims
- 4928US5901114ACircuit for measuring the cut-off time of an electronic systemVALEO ELECTRONIQUE·Filed 1997·Granted May 4, 1999·4 cites·25 claims
- 5025US6253616B1Method and system for detecting the vibration signature of a safety insert fitted in a tireVALEO ELECTRONIQUE·Filed 1999·Granted Jul 3, 2001·4 cites·25 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Alfred Permuy files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →