Inventor

HARNISCH HORST

46 patents

Patents

46 patents

US4659657AApr 21, 1987

Chromogenic and fluorogenic esters for photometric or fluorimetric determination of phosphatases or sulphatases

BAYER AG38 citations92

US5292881AMar 8, 1994

New naphthalimides, toners containing these and the use of the new naphthalimides as additives for toners

BAYER AG50 citations91

US4035740AJul 12, 1977

Dyestuff laser

BAYER AG43 citations91

US4384973AMay 24, 1983

Dimethine compounds of the coumarin series, a process for their preparation and their use as luminous dyestuffs

BAYER AG26 citations82

US5013627AMay 7, 1991

Electrophotographic toners with cationic charge increasing additive

BAYER AG11 citations74

US4927729AMay 22, 1990

Colorless salts of heteropolyacids as charge control substances in toners

BAYER AG7 citations74

US4919848AApr 24, 1990

Process for the quenching of fluorescence, and new cationic naphthalene-peri-dicarboxylic acid imide derivatives

BAYER AG17 citations74

US4841052AJun 20, 1989

Naphthalic acid imides electrophotographic toners

BAYER AG14 citations74

US4812379AMar 14, 1989

Electrophotographic toners containing an additive reinforcing the cationic charge

BAYER AG11 citations74

US4764622AAug 16, 1988

Light-collecting coumarin derivatives

BAYER AG12 citations74

US4614713ASep 30, 1986

Fluorogenic phosphate esters of hydroxy-pyrene-sulfonic acids for fluorimetric determination of phosphatases

BAYER AG7 citations74

US4585598AApr 29, 1986

Light-collecting systems and the use of coumarin derivatives as energy converters in them

BAYER AG8 citations73

US4051134ASep 27, 1977

Reactive dyestuffs

BAYER AG11 citations73

US4695405ASep 22, 1987

Process for quenching fluorescence, and new cationic or amphoteric aromatic nitro compounds

BAYER AG14 citations72

US4997740AMar 5, 1991

Electrophotographic toners with substituted 3-amino-1-imino-isoindolenine salts

BAYER AG3 citations63

US4384114AMay 17, 1983

Styryl substituted Γ-lactone derivatives

BAYER AG2 citations63

US4370486AJan 25, 1983

Biphenyl compounds, a process for their preparation and their use as intermediate products for optical brighteners, dyestuffs, plastics and medicaments

BAYER AG4 citations63

US4325873AApr 20, 1982

Process for the preparation of styryl-cyclopropanecarboxylic acid esters and intermediate products for this process

BAYER AG2 citations63

US4166176AAug 28, 1979

Fluorescent dyestuffs

BAYER AG4 citations63

US4140852AFeb 20, 1979

Triazinyl styryl-benzoxazole fluorescent dyestuffs

BAYER AG3 citations63

US4018796AApr 19, 1977

Monomethine dyestuffs

BAYER AG5 citations63

US3959306AMay 25, 1976

Azolindolines and azolindoline dyestuffs

BAYER AG2 citations63

US4598151AJul 1, 1986

Cationic dyestuffs, a process for their preparation, and their use for dyeing and mass-coloring

BAYER AG4 citations62

US4256882AMar 17, 1981

Reactive dyestuffs

BAYER AG2 citations62

US4234488ANov 18, 1980

Benz-[c,d]-indolyl compounds

BAYER AG4 citations62

US4147865AApr 3, 1979

Benz-(C,D)-indolyl compounds

BAYER AG2 citations62

US4022799AMay 10, 1977

Naphtholactam dyestuffs

BAYER AG2 citations62

US4001253AJan 4, 1977

Naphtholactam dyestuffs

BAYER AG2 citations62

US4268668AMay 19, 1981

Acid monomethine-metal complex dyestuffs

BAYER AG3 citations60

US4425282AJan 10, 1984

Preparation of 3-(arylvinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid esters and new intermediate therefor

BAYER AG1 citations52

US4411946AOct 25, 1983

Impregnating paper with 7-hydroxy-coumarin compounds

BAYER AG1 citations52

US4400523AAug 23, 1983

Process for the preparation of styryl-cyclopropanecarboxylic acid esters and new intermediate products for this process

BAYER AG1 citations52

US4327025AApr 27, 1982

Preparation of styryl-cyclopropane-carboxylic acid esters and intermediate therefor

BAYER AG1 citations52

US4278795AJul 14, 1981

Process for the preparation of pyrene compounds

BAYER AG0 citations52

US4249010AFeb 3, 1981

Naphthostyril dyestuffs

BAYER AG0 citations52

US4152330AMay 1, 1979

Process for the preparation of naphthostyril

BAYER AG0 citations52

US3950347AApr 13, 1976

Naphtholactam dyestuffs

BAYER AG0 citations41

HARNISCH HORST

Patents

Chromogenic and fluorogenic esters for photometric or fluorimetric determination of phosphatases or sulphatases

New naphthalimides, toners containing these and the use of the new naphthalimides as additives for toners

Dyestuff laser

Dimethine compounds of the coumarin series, a process for their preparation and their use as luminous dyestuffs

Electrophotographic toners with cationic charge increasing additive

Colorless salts of heteropolyacids as charge control substances in toners

Process for the quenching of fluorescence, and new cationic naphthalene-peri-dicarboxylic acid imide derivatives

Naphthalic acid imides electrophotographic toners

Electrophotographic toners containing an additive reinforcing the cationic charge

Light-collecting coumarin derivatives

Fluorogenic phosphate esters of hydroxy-pyrene-sulfonic acids for fluorimetric determination of phosphatases

Phosphate esters of hydroxy-pyrene-sulfonic acids

Light-collecting system using coumarin derivatives as energy converters

Heterocyclic dyestuffs

Naphthostyril dyestuffs

Monomethine dyestuffs

Azolindolines and azolindoline dyestuffs

Oxazolyl-acetic acid derivatives and oxazolyl-coumarines

Vic-triazole compounds

Dyestuffs and their use for mass-coloration of plastics

Light-collecting systems and the use of coumarin derivatives as energy converters in them

Reactive dyestuffs

Process for quenching fluorescence, and new cationic or amphoteric aromatic nitro compounds

Electrophotographic toners with substituted 3-amino-1-imino-isoindolenine salts

Styryl substituted Γ-lactone derivatives

Biphenyl compounds, a process for their preparation and their use as intermediate products for optical brighteners, dyestuffs, plastics and medicaments

Process for the preparation of styryl-cyclopropanecarboxylic acid esters and intermediate products for this process

Fluorescent dyestuffs

Triazinyl styryl-benzoxazole fluorescent dyestuffs

Monomethine dyestuffs

Azolindolines and azolindoline dyestuffs

Cationic dyestuffs, a process for their preparation, and their use for dyeing and mass-coloring

Reactive dyestuffs

Benz-[c,d]-indolyl compounds

Benz-(C,D)-indolyl compounds

Naphtholactam dyestuffs

Naphtholactam dyestuffs

Acid monomethine-metal complex dyestuffs

Preparation of 3-(arylvinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid esters and new intermediate therefor

Impregnating paper with 7-hydroxy-coumarin compounds

Process for the preparation of styryl-cyclopropanecarboxylic acid esters and new intermediate products for this process

Preparation of styryl-cyclopropane-carboxylic acid esters and intermediate therefor

Process for the preparation of pyrene compounds

Naphthostyril dyestuffs

Process for the preparation of naphthostyril

Naphtholactam dyestuffs