Claus Escher

Person

Muhltal, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Electrical addressing of ferroelectric liquid-crystal displays
- Patent number 5,859,680
- Issue date Jan 12, 1999
- Hoechst Aktiengesellschaft
- Dietmar Jungbauer
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Use of complex ligands for ions in ferroelectric liquid-crystal mix...
- Patent number 5,702,639
- Issue date Dec 30, 1997
- Hoechst Aktiengesellschaft
- Claus Escher
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Derivatives of 3-cyclohexylpropionic acid, and the use thereof in f...
- Patent number 5,679,792
- Issue date Oct 21, 1997
- Hoechst Aktiengesellschaft
- Claus Escher
- C07 - ORGANIC CHEMISTRY
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
2-Fluoropyridines, their preparation and their use in liquid crysta...
- Patent number 5,630,962
- Issue date May 20, 1997
- Hoechst Aktiengesellschaft
- Hubert Schlosser
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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
High contrast distorted helex effect electro-optic devices and tigh...
- Patent number 5,539,555
- Issue date Jul 23, 1996
- Displaytech, Inc.
- Michael D. Wand
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridylpyrimidines, a process for their preparation and their use i...
- Patent number 5,443,754
- Issue date Aug 22, 1995
- Hoechst Aktiengesellschaft
- Claus Escher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing ferroelectric liquid-crystal cells with oleop...
- Patent number 5,430,564
- Issue date Jul 4, 1995
- Hoechst Aktiengesellschaft
- Takamasa Harada
- G02 - OPTICS
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
Ferroelectric liquid crystal display with liquid crystal mixtures h...
- Patent number 5,373,380
- Issue date Dec 13, 1994
- Hoechst Aktiengesellschaft
- Takamasa Harada
- G02 - OPTICS
Information Patent Grant
Process for producing ferroelectric liquid-crystal cells
- Patent number 5,361,152
- Issue date Nov 1, 1994
- Hoechst Aktiengesellschaft
- Takamasa Harada
- G02 - OPTICS
Information Patent Grant
Chiral alkenylaryl 2,3-epoxyalkyl ethers, and the use thereof in li...
- Patent number 5,360,576
- Issue date Nov 1, 1994
- Hoechst Aktiengesellschaft
- Karsten Blatter
- 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
Ferroelectric liquid crystal with positive dielectric anisotropy, c...
- Patent number 5,353,136
- Issue date Oct 4, 1994
- Hoechst Aktiengesellschaft
- Claus Escher
- G02 - OPTICS
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
Ferroelectric liquid crystal mixtures containing lipohilizing, lipo...
- Patent number 5,333,075
- Issue date Jul 26, 1994
- Hoechst Aktiengesellschaft
- Takamasa Harada
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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
Ferroelectric liquid crystal display having gray steps or a continu...
- Patent number 5,257,122
- Issue date Oct 26, 1993
- Hoechst Aktiengesellschaft
- Hans-Rolf Dubal
- G02 - OPTICS
Information Patent Grant
Ferroelectric liquid crystal components having high spontaneous pol...
- Patent number 5,231,528
- Issue date Jul 27, 1993
- Hoechst Aktiengesellschaft
- Claus Escher
- G02 - OPTICS
Information Patent Grant
Process for the production of an impact-resistant liquid crystal sw...
- Patent number 5,206,751
- Issue date Apr 27, 1993
- Hoechst Aktiengesellschaft
- Claus Escher
- G02 - OPTICS
Information Patent Grant
Electrically conductive polymers and their use as orienting layer i...
- Patent number 5,118,538
- Issue date Jun 2, 1992
- Hoechst Aktiengesellschaft
- Claus Escher
- G02 - OPTICS
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
Use of compounds or mixtures of compounds which have a chiral, orth...
- Patent number 4,927,244
- Issue date May 22, 1990
- Hoechst Aktiengesellschaft
- Christian Bahr
- 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

Claus Escher

Person

Patents Grantslast 30 patents

Electrical addressing of ferroelectric liquid-crystal displays

Use of complex ligands for ions in ferroelectric liquid-crystal mix...

Derivatives of 3-cyclohexylpropionic acid, and the use thereof in f...

Optically active 1,3-dioxolane derivatives carrying a mesogenic rad...

Use of optically active 1,3-dioxolane-4-carboxylates as dopes in li...

2-Fluoropyridines, their preparation and their use in liquid crysta...

Ferroelectric liquid-crystal systems having three or more chiral ad...

High contrast distorted helex effect electro-optic devices and tigh...

Pyridylpyrimidines, a process for their preparation and their use i...

Process for producing ferroelectric liquid-crystal cells with oleop...

Cyclopropylaklyl or -alkenyl or heterocyclic compounds, process for...

Use of optically active tetrahydrofuran-2-carboxylic acid esters as...

Ferroelectric liquid-crystalline mixtures

Ferroelectric liquid crystal display with liquid crystal mixtures h...

Process for producing ferroelectric liquid-crystal cells

Chiral alkenylaryl 2,3-epoxyalkyl ethers, and the use thereof in li...

Optically active carboxylic esters of oxygen-containing heterocycle...

Ferroelectric liquid crystal with positive dielectric anisotropy, c...

Organosilylalkyl or organosilylalkenyl compounds, process for prepa...

Ferroelectric liquid crystal mixtures containing lipohilizing, lipo...

Optically active esters of 5-ethyl- and 5-vinyl-1,3-dioxolane-4-car...

Liquid-crystalline mixtures, in particular ferroelectric liquid-cry...

Ferroelectric liquid crystal display having gray steps or a continu...

Ferroelectric liquid crystal components having high spontaneous pol...

Process for the production of an impact-resistant liquid crystal sw...

Electrically conductive polymers and their use as orienting layer i...

Liquid-crystalline mixtures, in particular ferroelectric liquid-cry...

Use of optically active oxirane-2-carboxylic acid esters as dopants...

Use of compounds or mixtures of compounds which have a chiral, orth...

Liquid-crystal 5-phenylpyrimidine derivatives having sc or sc* phas...