Inventor
DOSWALD PAUL
CH15 patents
⚠️ This page may combine multiple inventors who share the name “DOSWALD PAUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANDOZ LTD
11 patentsUS5227477AJul 13, 1993
Dyes having one or two 2,4- or 4,6-dichloro-5-cyanopyrimidyl groups linked through bridging radicals containing at least two nitrogen atoms to chloro-1,3,5-triazinyl groups
SANDOZ LTD57 citations94
US5527886AJun 18, 1996
Dyes containing 5-cyano-2,4 or 4,6-dichloropyrimidyl fiber-reactive groups
SANDOZ LTD9 citations72
US4665162AMay 12, 1987
1:1 and 1:2 metal complexes of sulfo group-free azo compound having on average at least 1.3 basic water-solubilizing groups
SANDOZ LTD6 citations72
US4550158AOct 29, 1985
Metal-free disazo compounds containing at least two basic water-solubilizing groups and having a 1-phenylpyrazole middle component radical and a 6-hydroxyprid-2-one terminal coupling component
SANDOZ LTD5 citations72
US5386015AJan 31, 1995
Monoazo and disazo compounds having 5-cyano-2,4-and 4,6-dichloropyrimidyl groups
SANDOZ LTD6 citations62
US4284554AAug 18, 1981
Monoazo compounds having a 6-(2'-N-alkylanilino--4-chloro-1',3',5'-triazinyl-6'-amino or alkylamino)-1-hydroxy-3-sulfonaphthalene coupling component radical
SANDOZ LTD5 citations62
US4587292AMay 6, 1986
Sulfo group-free azo compounds having on average at least 1.3 basic water-solubilizing groups in metal-free, 1:1 metal complex or 1:2 metal complex form
SANDOZ LTD2 citations61
US4483796ANov 20, 1984
Sulfo group-free disazo and polyazo compounds containing two 1-phenylpyrazol-5-one coupling component radicals and at least two basic or cationic groups
SANDOZ LTD2 citations61
US4468347AAug 28, 1984
Sulfo group-free disazo and polyazo compounds containing at least two basic or cationic group and which are in metal-free or 2:1 metal complex form
SANDOZ LTD4 citations61
US4699626AOct 13, 1987
Mixtures of copper complexes of disazo compounds: 4,4'-(3,3'-dihydroxybiphenylene) tetrazo component and disulfonaphthol and 3-sulfo-6-(2'-chloro-4'-chloro or hydroxy-1,3,5-triazin-6'-ylamino)-naphth-1-ol coupling component
SANDOZ LTD5 citations57
US4843152AJun 27, 1989
Copper complexes of disazo compounds having di- or tri- sulfonaphthol and 6-[2,4-di-(amino or substituted amino)-1,3,5-triazia-6-ylamino-]-1-hydroxy-3-sulfonaphthalene coupling component radicals
SANDOZ LTD1 citations46
CLARIANT FINANCE BVI LTD
3 patentsUS5721343AFeb 24, 1998
Fibre-reactive azo dyestuffs containing a halo substituted pyrimidine substituent
CLARIANT FINANCE BVI LTD5 citations62
US5698681ADec 16, 1997
Reactive disazo dyestuff compounds containing halo-substituted triazinyl rings
CLARIANT FINANCE BVI LTD1 citations51
US5693765ADec 2, 1997
Substituted 5- 5'- (5"- Chloro-2", 4"-difluoropyrimid-6"-ylamino) phenylcarbonylamino!-2'-sulfophenyl-azo!-6-hydroxy-4-methyl-3-sulfomethylpyrid-2-ones
CLARIANT FINANCE BVI LTD0 citations41