Inventor
GEELHAAR THOMAS
DE37 patents
⚠️ This page may combine multiple inventors who share the name “GEELHAAR THOMAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MERCK PATENT GMBH
35 patentsUS5384065AJan 24, 1995
Matrix liquid-crystal display
MERCK PATENT GMBH67 citations96
US4834904AMay 30, 1989
Nitrogen-containing heterocycles
MERCK PATENT GMBH77 citations96
US5626793AMay 6, 1997
Liquid-crystalline compounds
MERCK PATENT GMBH33 citations93
US5279764AJan 18, 1994
Dihalogenobenzene derivatives
MERCK PATENT GMBH34 citations93
US5273680ADec 28, 1993
Fluorinated oligophenyls and their use in liquid crystal materials
MERCK PATENT GMBH43 citations93
US5236620AAug 17, 1993
2,3-difluorobenzene derivatives
MERCK PATENT GMBH28 citations93
US4871472AOct 3, 1989
Esters in ferroelectric mixtures
MERCK PATENT GMBH24 citations93
US5198149AMar 30, 1993
Smectic liquid-crystal medium
MERCK PATENT GMBH32 citations92
US5389295AFeb 14, 1995
Benzene derivatives, and a liquid crystal medium
MERCK PATENT GMBH19 citations82
US4886620ADec 12, 1989
Smectic liquid-crystalline phases
MERCK PATENT GMBH20 citations82
US5837162ANov 17, 1998
Liquid-crystalline compounds
MERCK PATENT GMBH7 citations74
US5389291AFeb 14, 1995
3,6-disubstituted 2-halopyridines
MERCK PATENT GMBH11 citations74
US5318721AJun 7, 1994
Nematic liquid-crystalline phases
MERCK PATENT GMBH7 citations74
US5248447ASep 28, 1993
2,3-difluorohydroquinone derivatives
MERCK PATENT GMBH13 citations74
US5232624AAug 3, 1993
Chiral 1,2-difluorobenzene derivatives
MERCK PATENT GMBH7 citations74
US5209866AMay 11, 1993
Heterocyclic 1,2-difluorobenzene derivatives
MERCK PATENT GMBH7 citations74
US5167859ADec 1, 1992
2,5-disubstituted heterocycle and liquid-crystalline phase
MERCK PATENT GMBH14 citations74
US5116527AMay 26, 1992
Display element based on the electroclinic effect
MERCK PATENT GMBH15 citations74
US5064566ANov 12, 1991
Smectic liquid crystal phases
MERCK PATENT GMBH10 citations74
US5064569ANov 12, 1991
Optically active compounds
MERCK PATENT GMBH11 citations74
US4897216AJan 30, 1990
2,3-difluorophenol derivatives
MERCK PATENT GMBH17 citations74
US5330679AJul 19, 1994
Nematic liquid-crystal composition for active matrix application
MERCK PATENT GMBH9 citations73
US5089168AFeb 18, 1992
Nitrogen-containing heterocycles
MERCK PATENT GMBH8 citations73
US5811029ASep 22, 1998
Benzene derivatives, and a liquid-crystalline medium
MERCK PATENT GMBH2 citations63
US5478496ADec 26, 1995
Media containing thiazole derivatives and thiadiazole derivatives and having a smectic liquid-crystalline phase
MERCK PATENT GMBH3 citations63
US5393459AFeb 28, 1995
Optically active compounds, and a liquid-crystalline phase
MERCK PATENT GMBH4 citations63
US5384072AJan 24, 1995
Methylenecyclobutane derivatives
MERCK PATENT GMBH3 citations63
US5230827AJul 27, 1993
Derivatives of 2,3-difluorobenzoic acid
MERCK PATENT GMBH5 citations63
US5143642ASep 1, 1992
Liquid-crystalline medium for electrooptical display elements based on the ECB effect
MERCK PATENT GMBH5 citations63
US5340497AAug 23, 1994
Fluorophenylpyrimidines
MERCK PATENT GMBH4 citations62
US5300254AApr 5, 1994
Ferroelectric liquid-crystal display
MERCK PATENT GMBH4 citations62
US5389290AFeb 14, 1995
Nitrogen-containing heterocycles
MERCK PATENT GMBH0 citations52
US5279762AJan 18, 1994
Smectic liquid crystal phases
MERCK PATENT GMBH0 citations52
US5196141AMar 23, 1993
5-oxy-2-phenylpyridines, and a liquid-crystalline medium
MERCK PATENT GMBH1 citations52
US5204476AApr 20, 1993
Fluorophenylpyridines
MERCK PATENT GMBH1 citations51