Inventor · disambiguated record
Gerhard Illian
Also filed as: ILLIAN GERHARD
25 granted patents·221 citations·filing 1990–1997
96Inventor score
Files withHOECHST AG25
Top patents by PatentIndex Score
25 records- 0171US5384070AUse of optically active tetrahydrofuran-2-carboxylic acid esters as dopants in liquid-crystal mixtures, liquid-crystal mixtures containing same and novel optically active tetrahydrofuran-2-carboxylic acid estersHOECHST AG·Filed 1993·Granted Jan 24, 1995·26 cites·5 claims
- 0269US5407599ACyclopropylaklyl or -alkenyl or heterocyclic compounds, process for their preparation and their use in liquid-crystalline mixturesHOECHST AG·Filed 1993·Granted Apr 18, 1995·11 cites·19 claims
- 0368US5695683AFerroelectric liquid crystal mixtureHOECHST AG·Filed 1994·Granted Dec 9, 1997·10 cites·7 claims
- 0467US5430564AProcess for producing ferroelectric liquid-crystal cells with oleophilic additive employing heat and low pressure overlapped a short timeHOECHST AG·Filed 1993·Granted Jul 4, 1995·22 cites·4 claims
- 0563US5118538AElectrically conductive polymers and their use as orienting layer in liquid-crystal switching and display elementsHOECHST AG·Filed 1990·Granted Jun 2, 1992·20 cites·7 claims
- 0662US5257122AFerroelectric liquid crystal display having gray steps or a continuous gray scaleHOECHST AG·Filed 1990·Granted Oct 26, 1993·24 cites·6 claims
- 0756US5231528AFerroelectric liquid crystal components having high spontaneous polarization and low helical pitchHOECHST AG·Filed 1992·Granted Jul 27, 1993·12 cites·12 claims
- 0852US5361152AProcess for producing ferroelectric liquid-crystal cellsHOECHST AG·Filed 1991·Granted Nov 1, 1994·18 cites·2 claims
- 0951US5779935AFerroelectric liquid crystal mixtureHOECHST AG·Filed 1997·Granted Jul 14, 1998·4 cites·7 claims
- 1050US5679792ADerivatives of 3-cyclohexylpropionic acid, and the use thereof in ferroelectric liquid-crystal mixturesHOECHST AG·Filed 1995·Granted Oct 21, 1997·4 cites·4 claims
- 1150US5206751AProcess for the production of an impact-resistant liquid crystal switching and display deviceHOECHST AG·Filed 1991·Granted Apr 27, 1993·10 cites·9 claims
- 1249US5353136AFerroelectric liquid crystal with positive dielectric anisotropy, chevron structure and grey scaleHOECHST AG·Filed 1990·Granted Oct 4, 1994·9 cites·4 claims
- 1348US5348684AOrganosilylalkyl or organosilylalkenyl compounds, process for preparing them and their use in liquid-crystalline mixturesHOECHST AG·Filed 1992·Granted Sep 20, 1994·9 cites·11 claims
- 1447US5702639AUse of complex ligands for ions in ferroelectric liquid-crystal mixturesHOECHST AG·Filed 1995·Granted Dec 30, 1997·9 cites·20 claims
- 1544US5366657AGeminal dimethylalkyl compounds, process for their preparation and their use in liquid-crystalline mixturesHOECHST AG·Filed 1991·Granted Nov 22, 1994·7 cites·11 claims
- 1641US5876628ACompounds for use in liquid-crystal compositionHOECHST AG·Filed 1994·Granted Mar 2, 1999·7 cites·9 claims
- 1738US5859680AElectrical addressing of ferroelectric liquid-crystal displaysHOECHST AG·Filed 1993·Granted Jan 12, 1999·8 cites·10 claims
- 1835US5328638AOptically active esters of 5-ethyl- and 5-vinyl-1,3-dioxolane-4-carboxylic acid, their use as doping substances in liquid crystal mixtures and the liquid crystal mixtures containing the new estersHOECHST AG·Filed 1992·Granted Jul 12, 1994·3 cites·3 claims
- 1935US5286409ALiquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixturesHOECHST AG·Filed 1990·Granted Feb 15, 1994·3 cites·15 claims
- 2034US5378394AFerroelectric liquid-crystalline mixturesHOECHST AG·Filed 1990·Granted Jan 3, 1995·3 cites·9 claims
- 2132US5370823APyrimidinecyclohexane derivatives, process for their preparation, and their use in liquid-crystalline mixturesHOECHST AG·Filed 1991·Granted Dec 6, 1994·0 cites·10 claims
- 2231US5594575AFerroelectric liquid-crystal systems having three or more chiral additives with different signs of the helical twist in the cholesteric phaseHOECHST AG·Filed 1995·Granted Jan 14, 1997·1 cites·9 claims
- 2330US5443754APyridylpyrimidines, a process for their preparation and their use in liquid-crystalline mixturesHOECHST AG·Filed 1992·Granted Aug 22, 1995·0 cites·6 claims
- 2430US5354500AOptically active carboxylic esters of oxygen-containing heterocycles as doping substances in liquid crystal mixtures and liquid crystal mixtures containing themHOECHST AG·Filed 1992·Granted Oct 11, 1994·0 cites·7 claims
- 2530US5344585AUse of 4-fluoropyrimidine derivatives as component for ferroelectric liquid crystal mixturesHOECHST AG·Filed 1991·Granted Sep 6, 1994·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →