Inventor

HAMPRECHT RAINER

DE26 patents

⚠️ This page may combine multiple inventors who share the name “HAMPRECHT RAINER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HAMPRECHT RAINER

BAYER AG

Pyridone-methide azo dyestuffs with improved dyeing and printing properties for hydrophobic synethic fiber materials

Azo dyestuffs in which the coupling component contains an N,N-bis(alkoxy carbonylalkyl) substituent

Process for preparing 2-amino-thiophenes and azo dyestuffs prepared therefrom

Azo dyestuffs from cyano-amino-benzisothiazoles

Red dyeing 2,6-dicyano-2&#39;-sulfonamido-4&#39;-amino-azo-benzenes

Dyeing red with 2,6-dicyano-2&#39;-sulfonamido-4&#39;-amino-azo-benzenes

Pesticidally active 1-arylamino-2,4-dinitronaphthalenes

Conversion of o-halogenoazo compound to o-cyanoazo compound by reaction with a zinc cyanide

Aqueous process for the preparation of aromatic phosphorus compounds

Pyridone-methide azo dyestuffs

Cyanation of double bond systems

Process for the preparation of benzothiazoles

Halftone gravure printing inks containing an azo dyestuff

Halo-substituted amino-and substituted-sulphonamido-containing azo dyestuffs

Process for the preparation of cyano-azo dyestuffs

Process for the preparation of cyanoazo dyestuffs

Azo dyestuffs containing phenolic coupling group

Colored thermoplastic resin composition

Mixtures of blue disperse azo dyestuffs

Monazo compounds containing a 1-phenyl-2-pyrazoline coupling component

Pesticidally active 1-arylamino-2,4-dinitronaphthalenes

DYSTAR TEXTILFARBEN GMBH & CO

Thermomigrationfast azo dyes

Hydroxypyridonemethide azo dyes

Disperse azo dyestuffs

AGFA GEVAERT AG

Color photographic recording material containing a thiazole azo dye releaser for cyan dyes

JOHNSON & SON INC S C

Dyed compositions containing insecticides

Red dyeing 2,6-dicyano-2'-sulfonamido-4'-amino-azo-benzenes

Dyeing red with 2,6-dicyano-2'-sulfonamido-4'-amino-azo-benzenes