Inventor
KROECK FRIEDRICH W
DE16 patents
Patents
16 patentsUS5272259ADec 21, 1993
Stilbene dyestuffs and light-polarizing films or sheets containing stilbene
BAYER AG59 citations96
US5007942AApr 16, 1991
Light-polarizing films or sheets containing stilbene dyestuffs
BAYER AG67 citations96
US5621027AApr 15, 1997
Dyestuffs for bulk dyeing plastics
BAYER AG27 citations92
US5213582AMay 25, 1993
Light-polarizing films or foils containing triphendioxazine or triphendithiazine dyes with good dichrditic properties
BAYER AG11 citations74
US5122557AJun 16, 1992
Light polarizing films or foils and dyes for their production
BAYER AG7 citations73
US5093401AMar 3, 1992
Aqueous casting solutions for the production of light-polarizing sheets or films based on polyvinyl alcohol
BAYER AG17 citations73
US4863634ASep 5, 1989
Anthraquinone dyestuffs
BAYER AG13 citations73
US4689171AAug 25, 1987
Anthraquinone dyestuffs, their preparation and use and dichroic material containing these anthraquinone dyestuffs
BAYER AG17 citations72
US4596666AJun 24, 1986
Aryl-mercapto anthraquinone dyestuffs, their preparation and use and dichroic material containing aryl-mercapto anthraquinone dyestuffs
BAYER AG15 citations72
US4294769AOct 13, 1981
Process for the preparation of 1,4-diamino-2,3-dicyano-anthraquinones
BAYER AG11 citations70
US4422973ADec 27, 1983
Process for the preparation of 1,4-diamino-2,3-dicyano-anthraquinone
BAYER AG4 citations62
US4278434AJul 14, 1981
Transfer printing process and printing inks and temporary supports for carrying out this process
BAYER AG4 citations62
US5175336ADec 29, 1992
Fluoromethylated polycyanobenzenes, their alkali metal cyanide adducts, processes for their preparation and use of the fluoromethylated polycyanobenzenes
BAYER AG3 citations60
US4521341AJun 4, 1985
Process for the preparation of 1,4-diamino-anthraquinone-2-sulphonic acid
BAYER AG3 citations54
US4294578AOct 13, 1981
Colorants
BAYER AG0 citations51
US4264511AApr 28, 1981
Anthraquinone compounds
BAYER AG0 citations51