Inventor · disambiguated record
Frans Leenhouts
Also filed as: LEENHOUTS FRANS
23 granted patents·2 pending applications·532 citations·filing 1982–2004
96Inventor score
Files withHOFFMANN LA ROCHE9PHILIPS CORP5KONINKL PHILIPS ELECTRONICS NV2SIEMENS AG2FLAT PANEL DISPLAY CO1
Top patents by PatentIndex Score
25 records- 0196US4521079ALow-reflection liquid-crystal displaySIEMENS AG·Filed 1982·Granted Jun 4, 1985·163 cites·9 claims
- 0284US4896947ALiquid crystal display cellHOFFMANN LA ROCHE·Filed 1989·Granted Jan 30, 1990·54 cites·9 claims
- 0374US5825444AIllumination system using cholesteric polarizer, linear polarizer for such illumination system and display device comprising such as illumination systemPHILIPS CORP·Filed 1996·Granted Oct 20, 1998·50 cites·19 claims
- 0472US6177216B1Color filter layer of cholesterically ordered material, and reflective LCD provided with such a color filter layerPHILIPS CORP·Filed 1999·Granted Jan 23, 2001·41 cites·10 claims
- 0570US5346647ACyclohexane compounds used in liquid crystalline mixturesHOFFMANN LA ROCHE·Filed 1993·Granted Sep 13, 1994·11 cites·18 claims
- 0664US4609255ALiquid crystal display with twist angle less than 80 degreesPHILIPS CORP·Filed 1984·Granted Sep 2, 1986·23 cites·5 claims
- 0762US5798808ALiquid crystal display device having a cholesteric order with a pitch of helix less than 0.25 microns and a retardation foilPHILIPS CORP·Filed 1997·Granted Aug 25, 1998·29 cites·15 claims
- 0861US5877831AMulti-domain LCD with subpixels having twist angles with opposite twist sense of within 60 and small/greater 90 degreesFLAT PANEL DISPLAY CO FPD BV·Filed 1996·Granted Mar 2, 1999·31 cites·7 claims
- 0960US6795149B2Liquid crystal reflective displayKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Sep 21, 2004·6 cites·4 claims
- 1057US5411676AChiral dopants for liquid crystalline mixturesHOFFMANN LA ROCHE·Filed 1994·Granted May 2, 1995·11 cites·4 claims
- 1157US5104569ALiquid crystalline mixtures including 2-phenylpyridine compoundsHOFFMANN LA ROCHE·Filed 1990·Granted Apr 14, 1992·13 cites·12 claims
- 1256US4529272ALiquid-crystal display with reduced reflectionSIEMENS AG·Filed 1982·Granted Jul 16, 1985·16 cites·11 claims
- 1354US5250222AOptically active compounds used for liquid crystalline mixturesHOFFMANN LA ROCHE·Filed 1992·Granted Oct 5, 1993·11 cites·9 claims
- 1453US6424403B1Touch sensor displayKONINKL PHILIPS ELECTRONICS NV·Filed 1999·Granted Jul 23, 2002·27 cites·5 claims
- 1545US6362815B1Touch sensor displayFLAT PANEL DISPLAY CO B V·Filed 1999·Granted Mar 26, 2002·17 cites·8 claims
- 1643US5004324ALiquid crystal displayHOFFMANN LA ROCHE·Filed 1990·Granted Apr 2, 1991·11 cites·9 claims
- 1742US5093027AChiral dopants for liquid crystalline mixturesHOFFMANN LA ROCHE·Filed 1990·Granted Mar 3, 1992·5 cites·9 claims
- 1841US5244597ALiquid crystalline mixtures having a chiral tilted smectic phaseHOFFMANN LA ROCHE·Filed 1992·Granted Sep 14, 1993·1 cites·8 claims
- 1940US2005024564A1Liquid crystal reflective displayFiled 2004·Application pending·0 cites
- 2036US2006103793A1Normally white supper twisted nematic liquid crystal display deviceKONINK PHILIPS ELECTRONICS N C·Filed 2003·Application pending·0 cites
- 2135US7616276B2Light recycling in a transflective LCDTPO HONG KONG HOLDING LTD·Filed 2004·Granted Nov 10, 2009·0 cites·16 claims
- 2234US5356563ALiquid crystalline mixtures having a chiral tilted smectic phaseHOFFMANN LA ROCHE·Filed 1993·Granted Oct 18, 1994·2 cites·9 claims
- 2333US6233028B1Plasma-addressed liquid crystal display with reduced column voltagesPHILIPS CORP·Filed 1997·Granted May 15, 2001·4 cites·7 claims
- 2426US5883686ALiquid crystal display deviceFLAT PANEL DISPLAY CO FDP B V·Filed 1995·Granted Mar 16, 1999·5 cites·16 claims
- 2522US6239791B1Touch sensor displayFLAT PANEL DISPLAY CO·Filed 1999·Granted May 29, 2001·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →