Inventor
ROESCH NORBERT
DE19 patents
⚠️ This page may combine multiple inventors who share the name “ROESCH NORBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
13 patentsUS5430564AJul 4, 1995
Process for producing ferroelectric liquid-crystal cells with oleophilic additive employing heat and low pressure overlapped a short time
HOECHST AG22 citations92
US5405552AApr 11, 1995
Modified polysugar as the alignment layer for liquid-crystal displays
HOECHST AG22 citations92
US5702639ADec 30, 1997
Use of complex ligands for ions in ferroelectric liquid-crystal mixtures
HOECHST AG9 citations74
US5373380ADec 13, 1994
Ferroelectric liquid crystal display with liquid crystal mixtures having high spontaneous polarization and short helical pitch and alignment layers containing lipophilic or amphiphilic compounds
HOECHST AG10 citations73
US5361152ANov 1, 1994
Process for producing ferroelectric liquid-crystal cells
HOECHST AG18 citations73
US5333075AJul 26, 1994
Ferroelectric liquid crystal mixtures containing lipohilizing, lipophilic or amphiphilic compounds for eliminating ionic impurities
HOECHST AG8 citations73
US5206751AApr 27, 1993
Process for the production of an impact-resistant liquid crystal switching and display device
HOECHST AG10 citations73
US5178792AJan 12, 1993
Macrocyclic compounds as component for ferroelectric liquid crystal mixtures
HOECHST AG8 citations73
US5384168AJan 24, 1995
Ferroelectric liquid-crystal display of high contrast and brightness
HOECHST AG17 citations72
US5167856ADec 1, 1992
Ionophore-containing ferroelectric liquid crystal mixtures
HOECHST AG4 citations63
US5445762AAug 29, 1995
Stabilized complex ligands and their use in liquid crystal displays
HOECHST AG6 citations62
US5409635AApr 25, 1995
Alignment layers containing cyclic structural elements
HOECHST AG4 citations62
US5250215AOct 5, 1993
Ferroelectric liquid-crystal mixtures containing mercapto compounds
HOECHST AG2 citations62