Inventor · disambiguated record
Roelf Van Der Wal
Also filed as: VAN DER WAL ROELF
12 granted patents·1 pending application·114 citations·filing 1997–2019
90Inventor score
Files withPHILIPS CORP6VAN DER WAL ROELF3KONINKL PHILIPS ELECTRONICS NV2KONINKLIJKE PHILIPS NV1KONINKLJKE PHILIPS ELECTRONICS1
Top patents by PatentIndex Score
13 records- 0164US8063581B2Drive circuit for driving a load with pulsed currentVAN DER WAL ROELF·Filed 2007·Granted Nov 22, 2011·4 cites·9 claims
- 0264US7394232B2Interleaved switching converters in ring configurationKONINKLJKE PHILIPS ELECTRONICS·Filed 2004·Granted Jul 1, 2008·19 cites·22 claims
- 0363US11735957B2Wireless power transferKONINKLIJKE PHILIPS NV·Filed 2019·Granted Aug 22, 2023·1 cites·13 claims
- 0461US9049395B2Processing circuit for an X-ray sensorVAN DER WAL ROELF·Filed 2010·Granted Jun 2, 2015·1 cites·20 claims
- 0561US6006656AToaster with power output controlPHILIPS CORP·Filed 1998·Granted Dec 28, 1999·28 cites·17 claims
- 0652US6044002AFlyback converter with limited output powerPHILIPS CORP·Filed 1999·Granted Mar 28, 2000·20 cites·4 claims
- 0744US6016261ASwitching voltage converter with synchronous rectificationPHILIPS CORP·Filed 1999·Granted Jan 18, 2000·14 cites·8 claims
- 0841US6051818AElectric toaster with asymmetric heating effectPHILIPS CORP·Filed 1998·Granted Apr 18, 2000·9 cites·10 claims
- 0937US8134352B2Switched mode power supply including power supply units and controllerVAN DER WAL ROELF·Filed 2004·Granted Mar 13, 2012·3 cites·16 claims
- 1037US2005285814A1Electroluminescent displayKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 1136US7521910B2Method and device for measuring current in a switched current path of a circuitKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Granted Apr 21, 2009·1 cites·14 claims
- 1234US5819637AToaster having heating elements whose heating area depends on the slice sizePHILIPS CORP·Filed 1997·Granted Oct 13, 1998·8 cites·11 claims
- 1332US5758567AToaster with mains-power-on safety devicePHILIPS CORP·Filed 1997·Granted Jun 2, 1998·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →