Inventor · disambiguated record
Jan De Graaf
Also filed as: DE GRAAF JAN · DE GRAAF JAN A
24 granted patents·10 pending applications·346 citations·filing 1978–2023
95Inventor score
Files withSIGNIFY HOLDING BV10KONINKL PHILIPS ELECTRONICS NV8DE GRAAF JAN3PHILIPS LIGHTING HOLDING BV3LUMILEDS LLC2
Top patents by PatentIndex Score
34 records- 0198US7361938B2Luminescent ceramic for a light emitting devicePHILIPS LUMILEDS LIGHTING CO·Filed 2004·Granted Apr 22, 2008·264 cites·25 claims
- 0296US9722148B2Luminescent ceramic for a light emitting deviceLUMILEDS LLC·Filed 2016·Granted Aug 1, 2017·9 cites·15 claims
- 0393US10290775B2Luminescent ceramic for a light emitting deviceLUMILEDS LLC·Filed 2017·Granted May 14, 2019·4 cites·12 claims
- 0488US8496852B2Phosphor in polycrystalline ceramic structure and a light-emitting element comprisng sameDE GRAAF JAN·Filed 2010·Granted Jul 30, 2013·8 cites·6 claims
- 0587US7879258B2Phosphor in polycrystalline ceramic structure and a light-emitting element comprising sameKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Granted Feb 1, 2011·12 cites·6 claims
- 0682US8425052B2Illumination system, method and projection device for controlling light emitted during a spoke time periodPEETERS MARTINUS PETRUS JOSEPH·Filed 2008·Granted Apr 23, 2013·9 cites·14 claims
- 0782US8190007B2Calibration camera with spectral depthMEIJER EDUARD JOHANNES·Filed 2009·Granted May 29, 2012·7 cites·13 claims
- 0881US9359260B2Luminescent ceramic for a light emitting deviceMUELLER GERD O·Filed 2008·Granted Jun 7, 2016·5 cites·17 claims
- 0973US9791141B2Light emitting diode modulePHILIPS LIGHTING HOLDING BV·Filed 2014·Granted Oct 17, 2017·3 cites·14 claims
- 1073US8121166B2Side-emitting LED light source for backlighting applicationsVAN SPRANG HENDRIK ADRIANUS·Filed 2008·Granted Feb 21, 2012·6 cites·10 claims
- 1167US11493194B2Lighting device module for wireless connectivity and corresponding methodSIGNIFY HOLDING BV·Filed 2019·Granted Nov 8, 2022·1 cites·20 claims
- 1263US8513691B2Light emitting device including reflective optic housing at least partially filled with reflective materialDE GRAAF JAN·Filed 2009·Granted Aug 20, 2013·2 cites·6 claims
- 1362US8338846B2Wavelength converted light emitting diode with reduced emission of unconverted lightDE GRAAF JAN·Filed 2009·Granted Dec 25, 2012·3 cites·15 claims
- 1458US10533726B2Optical arrangement, lighting device and illumination methodSIGNIFY HOLDING BV·Filed 2015·Granted Jan 14, 2020·1 cites·15 claims
- 1556US2025369575A1Lighting arrangement with rod-shaped light guide elementSIGNIFY HOLDING BV·Filed 2023·Application pending·0 cites
- 1655US12410891B2Lightguide lamp with crosstalk preventionSIGNIFY HOLDING BV·Filed 2023·Granted Sep 9, 2025·0 cites·13 claims
- 1751US12196376B2Lightguide lampSIGNIFY HOLDING BV·Filed 2022·Granted Jan 14, 2025·0 cites·15 claims
- 1851US2008171206A1Method Of Producing A Component With A Surface Structure, Ceramic Component And Application Of Such A MethodKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 1950US12222074B2Light emitting diode filamentSIGNIFY HOLDING BV·Filed 2022·Granted Feb 11, 2025·0 cites·13 claims
- 2049US10208941B2Lamp comprising cooling meansPHILIPS LIGHTING HOLDING BV·Filed 2016·Granted Feb 19, 2019·0 cites·7 claims
- 2147US2023180370A1A control system for controlling a cooling fanSIGNIFY HOLDING BV·Filed 2021·Application pending·0 cites
- 2246US2011095328A1Close proximity collimator for ledKONINKL PHILIPS ELECTRONICS NV·Filed 2009·Application pending·0 cites
- 2345US10928032B2Light emitting deviceSIGNIFY HOLDING BV·Filed 2017·Granted Feb 23, 2021·0 cites·14 claims
- 2445US2009018622A1Body cover, glasses and/or at least partial head cover, method for radiating at least part of a human body and use of a body coverKONINKL PHILIPS ELECTRONICS NV·Filed 2007·Application pending·0 cites
- 2545US2009030489A1Body cover, glasses and/or at least partial head cover, method for radiating at least part of a human body and use of a body coverKONINKL PHILIPS ELECTRONICS NV·Filed 2007·Application pending·0 cites
- 2644US10047945B2Lighting devicePHILIPS LIGHTING HOLDING BV·Filed 2015·Granted Aug 14, 2018·0 cites·12 claims
- 2744US2012076167A1Side-emitting led light source for backlighting applicationsVAN SPRANG HENDRIK ADRIANUS·Filed 2011·Application pending·0 cites
- 2843US12092271B2Optical and thermal improvement of a two-sided multi-channel filamentSIGNIFY HOLDING BV·Filed 2022·Granted Sep 17, 2024·0 cites·15 claims
- 2942US2009206301A1Inorganic phosphor bodies for light emitting diodesKONINKL PHILIPS ELECTRONICS NV·Filed 2007·Application pending·0 cites
- 3041US10756074B2Light emitting assembly, a spot lamp and luminaireSIGNIFY HOLDING BV·Filed 2018·Granted Aug 25, 2020·0 cites·14 claims
- 3141US2008192472A1Light-Emitting DeviceKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 3240US4149706ASlag shield for a steel converterHOOGOVENS IJMUIDEN BV·Filed 1978·Granted Apr 17, 1979·6 cites·4 claims
- 3340US2008143242A1Light Emitting Device Comprising Inorganic Light Emitting Diode (S)KONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 3439US4569508AMetallurgical vessel having an opening and a flange around the openingHOOGOVENS GROEP BV·Filed 1984·Granted Feb 11, 1986·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →