Inventor · disambiguated record
Johannes Marra
Also filed as: MARRA JOHANNES
19 granted patents·16 pending applications·589 citations·filing 1992–2021
95Inventor score
Files withKONINKL PHILIPS ELECTRONICS NV17KONINKLIJKE PHILIPS NV6PHILIPS CORP5MARRA JOHANNES2KONINK ELECTRONICS N V1
Top patents by PatentIndex Score
35 records- 0192US6653997B2Display device comprising a light guideKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Nov 25, 2003·59 cites·6 claims
- 0292US6251171B1Air cleanerPHILIPS CORP·Filed 1999·Granted Jun 26, 2001·88 cites·7 claims
- 0390US5271774AMethod for removing in a centrifuge a liquid from a surface of a substratePHILIPS CORP·Filed 1992·Granted Dec 21, 1993·206 cites·13 claims
- 0488US8607616B2Sensor for sensing airborne particlesMARRA JOHANNES·Filed 2009·Granted Dec 17, 2013·16 cites·15 claims
- 0587US7068910B2Light generating device having polarized light emitting waveguide plateKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Jun 27, 2006·39 cites·13 claims
- 0681US6413303B2Activated carbon air filtersKONINKL PHILIPS ELECTRONICS NV·Filed 1999·Granted Jul 2, 2002·60 cites·7 claims
- 0780US11399652B2Method and device for providing a coffee beverage with reduced terpene contentKONINKLIJKE PHILIPS NV·Filed 2017·Granted Aug 2, 2022·3 cites·18 claims
- 0878US11672375B2Coffee brewingKONINKLIJKE PHILIPS NV·Filed 2017·Granted Jun 13, 2023·3 cites·6 claims
- 0970US6071479AAir filtration devicePHILIPS CORP·Filed 1997·Granted Jun 6, 2000·42 cites·18 claims
- 1068US6956332B2Display device comprising a light guideKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Oct 18, 2005·9 cites·20 claims
- 1167US5966426AX-ray examination apparatus including an x-ray filterPHILIPS CORP·Filed 1997·Granted Oct 12, 1999·27 cites·20 claims
- 1263US8627732B2Device for characterizing a size distribution of electrically-charged airborne particles in an air flowMARRA JOHANNES·Filed 2008·Granted Jan 14, 2014·1 cites·7 claims
- 1362US5507108ASteam iron with scale preventionPHILIPS CORP·Filed 1994·Granted Apr 16, 1996·26 cites·7 claims
- 1453US11555626B2Ventilation unit, system and methodKONINKLIJKE PHILIPS NV·Filed 2018·Granted Jan 17, 2023·0 cites·17 claims
- 1553US7222994B2Illumination systemKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted May 29, 2007·4 cites·20 claims
- 1651US11617979B2Device and method for determining the pollution status of a particle filter in an air-cleaning deviceKONINKLIJKE PHILIPS NV·Filed 2017·Granted Apr 4, 2023·0 cites·15 claims
- 1750US7128443B2Light-collimating systemKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Oct 31, 2006·3 cites·15 claims
- 1850US2007007889A1Dynamic foil display having low resistivity electrodesKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 1948US11413628B2Electrostatic particle filteringKONINKLIJKE PHILIPS NV·Filed 2017·Granted Aug 16, 2022·0 cites·13 claims
- 2046US2020009580A1Systems and methods for detecting the status of an electrostatic filterKONINKLIJKE PHILIPS NV·Filed 2017·Application pending·0 cites
- 2143US7314292B2Lighting deviceKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Jan 1, 2008·3 cites·18 claims
- 2243US2023213751A1Electrowetting displayMIORTECH HOLDING B V·Filed 2021·Application pending·0 cites
- 2343US2006039154A1Lighting deviceKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 2442US2005225987A1Light-collimating systemKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 2541US2006068082A1Method of electrostatic depositionKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 2640US2005281053A1Light generating device comprising light input and light output unitsKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 2740US2005237762A1Lighting deviceKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 2839US2006028494A1Optical display driving methodKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 2939US2006276099A1Method of manufacturing a field emitting electrodeKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 3039US2005155698A1Method of manufacturing a polymeric foilKONINK PHILIPS ELECTRONIS N V·Filed 2003·Application pending·0 cites
- 3138US2006038769A1Display apparatus with scanning backlightKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 3238US2006291774A1Foil displaySCHOELLMANN VOLKER·Filed 2004·Application pending·0 cites
- 3337US2005162357A1Display device comprising a light guideKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
- 3436US2005265028A1Backlight and display utilising sameKONINK ELECTRONICS N V·Filed 2003·Application pending·0 cites
- 3535US2005117109A1Display panel comprising a light guideFiled 2002·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →