Inventor · disambiguated record
Patrick John Zijlstra
Also filed as: ZIJLSTRA PATRICK J · ZIJLSTRA PATRICK JOHN
3 granted patents·5 pending applications·18 citations·filing 1996–2016
63Inventor score
Files withKONINKL PHILIPS ELECTRONICS NV4JANS WILLIAM PETER MECHTILDIS MARIE1KONINKL PHILIPS NV1PHILIPS CORP1SIGNIFY HOLDING BV1
Top patents by PatentIndex Score
8 records- 0177US9072142B2LED lighting unit with color and dimming controlKONINKL PHILIPS NV·Filed 2013·Granted Jun 30, 2015·5 cites·19 claims
- 0240US10588185B2LED tube lampSIGNIFY HOLDING BV·Filed 2016·Granted Mar 10, 2020·0 cites·13 claims
- 0340US2009129134A1Controlled class-e dc ac converterKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 0439US5757143ADischarge lamp control circuit with feedback loop to lower harmonic distortionPHILIPS CORP·Filed 1996·Granted May 26, 1998·13 cites·15 claims
- 0536US2009224685A1Drive circuit for driving a gas discharge lamp, and method of calibrating a drive circuitKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 0636US2008122386A1Control Unit for a Lamp Driver Providing Smooth Transition Between Operation ModesKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 0736US2007182344A1Lamp driver providing synchronization during commutationKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 0835US2013320869A1Electromagnetic ballast-compatible lighting driver for light-emitting diode lampJANS WILLIAM PETER MECHTILDIS MARIE·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →