Inventor
SCHROTER HERBERT
37 patents
⚠️ This page may combine multiple inventors who share the name “SCHROTER HERBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
20 patentsUS4140310AFeb 20, 1979
Feeder mechanism at an exposure station of a photoprinting machine
HOECHST AG7 citations74
US4092658AMay 30, 1978
Photoprinting machine with a device for expelling excess ammonia-containing developer medium from developed diazotype paper
HOECHST AG13 citations74
US4082456AApr 4, 1978
Device for adjusting an original to be copied
HOECHST AG9 citations74
US4062031ADec 6, 1977
Apparatus for producing a developer medium for diazotype materials
HOECHST AG12 citations74
US4018526AApr 19, 1977
Method of and apparatus for controlling the exposure time in an apparatus for the re-enlargement of microfilms
HOECHST AG11 citations74
US4135814AJan 23, 1979
Process and apparatus for the production of photocopies using two-component diazotype material
HOECHST AG7 citations73
US4109268AAug 22, 1978
Apparatus for developing a photosensitive material using a vaporous ammonia-containing developer
HOECHST AG10 citations73
US4093375AJun 6, 1978
Methods and apparatus for automatic exposure control
HOECHST AG9 citations66
US4068251AJan 10, 1978
Developing device for printing plates
HOECHST AG10 citations66
US4023193AMay 10, 1977
Process and apparatus for replenishing developer in photoprinting machines
HOECHST AG9 citations66
US4180317ADec 25, 1979
Apparatus for developing sheets of diazotype copying material by the semi-dry process
HOECHST AG5 citations63
US4101918AJul 18, 1978
Developing apparatus for light-sensitive materials comprising an evaporator for evaporating a developer medium from a solution
HOECHST AG3 citations63
US4065119ADec 27, 1977
Process and apparatus for transport of originals in a reproduction apparatus
HOECHST AG5 citations63
US3948130AApr 6, 1976
Device for controlling the feed of copying material in copying machines
HOECHST AG3 citations63
US4099868AJul 11, 1978
Copying apparatus, in particular photoprinting apparatus, comprising a developing chamber which operates according to the dry-development principle, and a dosing device for liquid developer medium
HOECHST AG4 citations62
US3998547ADec 21, 1976
Process and apparatus for automatically changing the illumination intensity of the light source in a copying apparatus
HOECHST AG6 citations61
US3985440AOct 12, 1976
Process and apparatus for automatic exposure time control in copying devices
HOECHST AG3 citations61
US3943538AMar 9, 1976
Developing apparatus with automatic temperature control
HOECHST AG4 citations59
US4240736ADec 23, 1980
Developing apparatus for diazotype material, especially for use in a photoprinting machine
HOECHST AG1 citations52
US3984856AOct 5, 1976
Process and apparatus for developing diazotype material
HOECHST AG0 citations52
CIBA GEIGY CORP
16 patentsUS4140789AFeb 20, 1979
Etherified hydroxy-benzodiheterocyclic compounds
CIBA GEIGY CORP28 citations82
US4115575ASep 19, 1978
2-(3-Amino-2-hydroxy-propoxy)-pyrazines
CIBA GEIGY CORP30 citations81
US4027027AMay 31, 1977
Pyridyloxyalkyleneamino-phenoxy-propanol-2-compounds
CIBA GEIGY CORP15 citations74
US4144344AMar 13, 1979
Antihypertensive 1-substituted-4-(2-oxo-1-imidazolidinyl) piperidines
CIBA GEIGY CORP13 citations72
US3984436AOct 5, 1976
Pyrrolyl compounds and processes for their manufacture
CIBA GEIGY CORP5 citations63
US3978041AAug 31, 1976
Phenoxy substituted glycosides
CIBA GEIGY CORP4 citations63
US4075335AFeb 21, 1978
Pharmaceutical piperidine derivatives
CIBA GEIGY CORP3 citations62
US4075208AFeb 21, 1978
1-Substituted-4-(2-oxo-hexahydro-1-pyrimidinyl)-piperidine
CIBA GEIGY CORP2 citations62
US3956335AMay 11, 1976
1-Substituted-4-(2-oxo-1-imidazolidinyl) piperidines
CIBA GEIGY CORP4 citations62
US4217350AAug 12, 1980
Oxygenated N-aryl-diazacyclic compounds
CIBA GEIGY CORP6 citations61
US4038414AJul 26, 1977
Amines and processes for their manufacture
CIBA GEIGY CORP2 citations59
US4014920AMar 29, 1977
N-cinnamylcarbamic acid esters
CIBA GEIGY CORP6 citations59
US4195090AMar 25, 1980
2-(3-Amino-2-hydroxy-propoxy)pyridine derivatives and pharmaceutical compositions therewith
CIBA GEIGY CORP6 citations58
US4049797ASep 20, 1977
Composition and method for treatment of heart and circulatory ailments
CIBA GEIGY CORP0 citations52
US4016283AApr 5, 1977
Composition and method for treatment of heart and circulatory ailments
CIBA GEIGY CORP1 citations52
US3974284AAug 10, 1976
1,1A,6,10B-Tetrahydro-1,6-methano-dibenzo[a,e]cyclopropa[c]cycloheptenes as antidepressants
CIBA GEIGY CORP1 citations52