Inventor · disambiguated record
Martin Ouwerkerk
Also filed as: OUWERKERK MARTIN
28 granted patents·20 pending applications·341 citations·filing 1991–2020
96Inventor score
Files withKONINKLIJKE PHILIPS NV17KONINKL PHILIPS ELECTRONICS NV12PHILIPS CORP6OUWERKERK MARTIN5CROMPVOETS FLORIS MARIA HERMANSZ2
Top patents by PatentIndex Score
48 records- 0197US10085695B2Mental balance or imbalance estimation system and methodKONINKLIJKE PHILIPS NV·Filed 2012·Granted Oct 2, 2018·39 cites·9 claims
- 0294US6437900B1Transflective display deviceKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Aug 20, 2002·65 cites·9 claims
- 0390US5905590AOptical switching device comprising switchable hydridesPHILIPS CORP·Filed 1997·Granted May 18, 1999·106 cites·10 claims
- 0483US6608713B2Optical switching deviceKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Aug 19, 2003·24 cites·18 claims
- 0575US5322592APotassium-lithium-niobate crystals and the manufacture thereofPHILIPS CORP·Filed 1992·Granted Jun 21, 1994·26 cites·7 claims
- 0674US8932133B2Game board, pawn and system for playing board gamesCORTENRAAD HUBERTUS MARIA RENE·Filed 2005·Granted Jan 13, 2015·4 cites·20 claims
- 0773US8684924B2Device for determining a stress level of a person and providing feedback on the basis of the stress level as determinedOUWERKERK MARTIN·Filed 2006·Granted Apr 1, 2014·13 cites·16 claims
- 0873US8490971B2Autonomous wireless dieOUWERKERK MARTIN·Filed 2005·Granted Jul 23, 2013·4 cites·16 claims
- 0972US10405761B2Device for detecting heart rate and heart rate variabilityKONINKLIJKE PHILIPS NV·Filed 2016·Granted Sep 10, 2019·2 cites·20 claims
- 1070US9706942B2Wearable device and a method of manufacturing the sameOUWERKERK MARTIN·Filed 2012·Granted Jul 18, 2017·5 cites·13 claims
- 1168US9962104B2Stress-measuring device and methodDE VRIES JAN JOHANNES GERARDUS·Filed 2012·Granted May 8, 2018·7 cites·18 claims
- 1263US10758179B2Stress-measuring systemKONINKLIJKE PHILIPS NV·Filed 2013·Granted Sep 1, 2020·2 cites·16 claims
- 1363US8594787B2Synchronising a heart rate parameter of multiple usersCROMPVOETS FLORIS MARIA HERMANSZ·Filed 2009·Granted Nov 26, 2013·3 cites·16 claims
- 1460US8880156B2Method and system for determining a physiological condition using a two-dimensional representation of R-R intervalsCROMPVOETS FLORIS MARIA HERMANSZ·Filed 2009·Granted Nov 4, 2014·3 cites·11 claims
- 1560US5422538ALow-pressure mercury discharge lampPHILIPS CORP·Filed 1994·Granted Jun 6, 1995·18 cites·23 claims
- 1658US11197623B2System for improving sleep effectiveness of a userKONINKLIJKE PHILIPS NV·Filed 2017·Granted Dec 14, 2021·1 cites·20 claims
- 1754US10694969B2Dry skin conductance electrodeKONINKLIJKE PHILIPS NV·Filed 2017·Granted Jun 30, 2020·0 cites·12 claims
- 1850US6821676B2Metal hydride battery material with high storage capacityKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Nov 23, 2004·1 cites·20 claims
- 1949US2023047256A1Wearable sensor device and a sensing methodKONINKLIJKE PHILIPS NV·Filed 2020·Application pending·0 cites
- 2049US2010252124A1Valve for a microfluidic systemKONINKL PHILIPS ELECTRONICS NV·Filed 2008·Application pending·0 cites
- 2149US2022022770A1Device, system and method for providing bio-feedback to a userKONINKLIJKE PHILIPS NV·Filed 2019·Application pending·0 cites
- 2248US10617341B2Processor for processing skin conductance data and device for detecting at least one stage of burnout and/or chronic fatigue syndrome of a living beingKONINKLIJKE PHILIPS NV·Filed 2014·Granted Apr 14, 2020·0 cites·17 claims
- 2348US2021290157A1Device, system and method for determining a stress level of a userKONINKLIJKE PHILIPS NV·Filed 2019·Application pending·0 cites
- 2448US2009018410A1Body parameter sensingKONINKL PHILIPS ELECTRONICS NV·Filed 2007·Application pending·0 cites
- 2547US2010099020A1Electrochemical energy source and electronic device provided with such an electrochemical energy sourceKONINKL PHILIPS ELECTRONICS NV·Filed 2008·Application pending·0 cites
- 2647US2009048526A1Apparatus for monitoring a person's heart rate and/or heart rate variation; wrist-watch comprising the sameKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 2747US2013338470A1Dry skin conductance electrodeOUWERKERK MARTIN·Filed 2012·Application pending·0 cites
- 2846US10874325B2Surface treatment device and methodKONINKLIJKE PHILIPS NV·Filed 2016·Granted Dec 29, 2020·0 cites·19 claims
- 2946US5652433ABistable switching device containing gadolinium hydridePHILIPS CORP·Filed 1996·Granted Jul 29, 1997·13 cites·7 claims
- 3046US2014142460A1Method for detecting potential falls and a fall detectorZHANG WEI·Filed 2012·Application pending·0 cites
- 3145US12156744B2Tailorable sensor device for physiological parameter sensingKONINKLIJKE PHILIPS NV·Filed 2012·Granted Dec 3, 2024·0 cites·16 claims
- 3245US11690546B2Device, system and method for determining an emotional state of a userKONINKLIJKE PHILIPS NV·Filed 2018·Granted Jul 4, 2023·0 cites·19 claims
- 3345US2008269664A1System and Method For Controlling Traversal of an Igested CapsuleKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 3444US10524727B2Circadian phase detection systemKONINKLIJKE PHILIPS NV·Filed 2015·Granted Jan 7, 2020·0 cites·10 claims
- 3544US2007026309A1Electrochemical energy source, electronic device and method of manufacturing said energy sourceKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 3643US10448874B2Visit duration control system and methodKONINKLIJKE PHILIPS NV·Filed 2014·Granted Oct 22, 2019·0 cites·13 claims
- 3743US7326495B2Hydrogen storage material with high storage capacityKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Feb 5, 2008·0 cites·11 claims
- 3843US2007064774A1System, station, device and method for obtaining quantitiesKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 3943US2009138059A1Heart Defibrillator With Contactless ECG Sensor For Diagnostics/Effectivity FeedbackKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 4042US2019282152A1Device for assessing psychophysiological responsivenessKONINKLIJKE PHILIPS NV·Filed 2017·Application pending·0 cites
- 4141US2008287767A1Biometric SensorPASVEER WILLEM FRANKE·Filed 2006·Application pending·0 cites
- 4241US2008304241A1Electronic Device, a Housing Part, and a Method of Manufacturing a Housing PartPASVEER WILLEM FRANKE·Filed 2006·Application pending·0 cites
- 4339US2019150824A1Fiber quality sensorKONINKLIJKE PHILIPS NV·Filed 2017·Application pending·0 cites
- 4439US2006278265A1Method of manufacturing a thermoelectric device and thermoelectric device obtained by means of such a methodOUWERKERK MARTIN·Filed 2004·Application pending·0 cites
- 4538US2021267543A1Device, system and method for determining a stress level of a userKONINKLIJKE PHILIPS NV·Filed 2019·Application pending·0 cites
- 4637US2003227667A1Optical switching deviceFiled 2003·Application pending·0 cites
- 4733US5562768APotassium-lithium niobate crystalsPHILIPS CORP·Filed 1991·Granted Oct 8, 1996·4 cites·4 claims
- 4830US5461508ADevice for doubling the frequency of a light wavePHILIPS CORP·Filed 1993·Granted Oct 24, 1995·1 cites·2 claims
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