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Ingrid Muller
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Hofheim am Taunus, DE
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last 30 patents
Information
Patent Grant
Compounds for use in liquid-crystal composition
Patent number
5,876,628
Issue date
Mar 2, 1999
Hoechst Aktiengesellschaft
Gerhard Illian
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Optically active 1,3-dioxolane derivatives carrying a mesogenic rad...
Patent number
5,651,918
Issue date
Jul 29, 1997
Hoechst Aktiengesellschaft
Gunter Scherowsky
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of optically active 1,3-dioxolane-4-carboxylates as dopes in li...
Patent number
5,641,428
Issue date
Jun 24, 1997
Hoechst Aktiengesellschaft
Rainer Wingen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Ferroelectric liquid-crystal systems having three or more chiral ad...
Patent number
5,594,575
Issue date
Jan 14, 1997
Hoechst Aktiengesellschaft
Claus Escher
G02 - OPTICS
Information
Patent Grant
Cyclohexylphenylpyrimidines, process for their preparation, and the...
Patent number
5,439,612
Issue date
Aug 8, 1995
Hoechst Aktiengesellschaft
Gerd Illian
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Cyclopropylaklyl or -alkenyl or heterocyclic compounds, process for...
Patent number
5,407,599
Issue date
Apr 18, 1995
Hoechst Aktiengesellschaft
Armin de Meijere
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of optically active tetrahydrofuran-2-carboxylic acid esters as...
Patent number
5,384,070
Issue date
Jan 24, 1995
Hoechst Aktiengesellschaft
Wolfgang Hemmerling
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Ferroelectric liquid-crystalline mixtures
Patent number
5,378,394
Issue date
Jan 3, 1995
Hoechst Aktiengesellschaft
Hans-Rolf Dubal
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Geminal dimethylalkyl compounds, process for their preparation and...
Patent number
5,366,657
Issue date
Nov 22, 1994
Hoechst Aktiengesellschaft
Gerhard Illian
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active carboxylic esters of oxygen-containing heterocycle...
Patent number
5,354,500
Issue date
Oct 11, 1994
Hoechst Aktiengesellschaft
Wolfgang Hemmerling
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organosilylalkyl or organosilylalkenyl compounds, process for prepa...
Patent number
5,348,684
Issue date
Sep 20, 1994
Hoechst Aktiengesellschaft
Wolfgang Hemmerling
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active esters of 5-ethyl- and 5-vinyl-1,3-dioxolane-4-car...
Patent number
5,328,638
Issue date
Jul 12, 1994
Hoechst Aktiengesellschaft
Ingrid Muller
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Liquid-crystalline mixtures, in particular ferroelectric liquid-cry...
Patent number
5,286,409
Issue date
Feb 15, 1994
Hoechst Aktiengesellschaft
Hans-Rolf Dubal
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Cyclohexylphenylpyrimidines, process for their preparation, and the...
Patent number
5,200,521
Issue date
Apr 6, 1993
Hoechst Aktiengesellschaft
Gerd Illian
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Liquid-crystalline mixtures, in particular ferroelectric liquid-cry...
Patent number
5,071,589
Issue date
Dec 10, 1991
Hoechst Aktiengesellschaft
Hans-Rolf Dubal
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Use of optically active oxirane-2-carboxylic acid esters as dopants...
Patent number
4,988,459
Issue date
Jan 29, 1991
Hoechst Aktiengesellschaft
Gunter Scherowsky
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Chiral aryloxypropionates, and the use thereof as dopes in liquid-c...
Patent number
4,985,172
Issue date
Jan 15, 1991
Hoechst AG
Rainer Wingen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Liquid-crystal 5-phenylpyrimidine derivatives having sc or sc* phas...
Patent number
4,906,752
Issue date
Mar 6, 1990
Hoechst Aktiengesellschaft
Ingrid Muller
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of liquid-crystal 5-phenylpyrimidine derivatives as components...
Patent number
4,906,401
Issue date
Mar 6, 1990
Hoechst Aktiengesellschaft
Hans-Rolf Dubal
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Liquid-crystalline phenylpyrimidinyl cyclohexanecarboxylates having...
Patent number
4,891,151
Issue date
Jan 2, 1990
Hoechst Aktiengesellschaft
Rainer Wingen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Chiral aryl-2,3-epoxyalkyl-ethers and the corresponding thio compou...
Patent number
4,876,028
Issue date
Oct 24, 1989
Hoechst Aktiengesellschaft
Wolfgang Hemmerling
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Chiral esters formed from .alpha.-substituted carboxylic acids and...
Patent number
4,855,429
Issue date
Aug 8, 1989
Hoechst Aktiengesellschaft
Gerd Heppke
C07 - ORGANIC CHEMISTRY