Inventor · disambiguated record
Paul Doswald
Also filed as: DOSWALD PAUL
15 granted patents·112 citations·filing 1978–1997
91Inventor score
Top patents by PatentIndex Score
15 records- 0191US5227477ADyes 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 groupsSANDOZ LTD·Filed 1991·Granted Jul 13, 1993·57 cites·28 claims
- 0265US5527886ADyes containing 5-cyano-2,4 or 4,6-dichloropyrimidyl fiber-reactive groupsSANDOZ LTD·Filed 1992·Granted Jun 18, 1996·9 cites·22 claims
- 0363US4665162A1:1 and 1:2 metal complexes of sulfo group-free azo compound having on average at least 1.3 basic water-solubilizing groupsSANDOZ LTD·Filed 1985·Granted May 12, 1987·6 cites·51 claims
- 0462US4550158AMetal-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 componentSANDOZ LTD·Filed 1982·Granted Oct 29, 1985·5 cites·19 claims
- 0562US4284554AMonoazo compounds having a 6-(2'-N-alkylanilino--4-chloro-1',3',5'-triazinyl-6'-amino or alkylamino)-1-hydroxy-3-sulfonaphthalene coupling component radicalSANDOZ LTD·Filed 1978·Granted Aug 18, 1981·5 cites·16 claims
- 0654US4699626AMixtures 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 componentSANDOZ LTD·Filed 1986·Granted Oct 13, 1987·5 cites·20 claims
- 0751US5721343AFibre-reactive azo dyestuffs containing a halo substituted pyrimidine substituentCLARIANT FINANCE BVI LTD·Filed 1995·Granted Feb 24, 1998·5 cites·17 claims
- 0850US4468347ASulfo 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 formSANDOZ LTD·Filed 1982·Granted Aug 28, 1984·4 cites·20 claims
- 0946US6042621AFibre-reactive dyestuffsCLARIANT FINANCE BV LIMITED·Filed 1997·Granted Mar 28, 2000·4 cites·9 claims
- 1044US4587292ASulfo 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 formSANDOZ LTD·Filed 1982·Granted May 6, 1986·2 cites·24 claims
- 1140US4483796ASulfo group-free disazo and polyazo compounds containing two 1-phenylpyrazol-5-one coupling component radicals and at least two basic or cationic groupsSANDOZ LTD·Filed 1982·Granted Nov 20, 1984·2 cites·19 claims
- 1238US5386015AMonoazo and disazo compounds having 5-cyano-2,4-and 4,6-dichloropyrimidyl groupsSANDOZ LTD·Filed 1993·Granted Jan 31, 1995·6 cites·20 claims
- 1334US5698681AReactive disazo dyestuff compounds containing halo-substituted triazinyl ringsCLARIANT FINANCE BVI LTD·Filed 1996·Granted Dec 16, 1997·1 cites·4 claims
- 1433US4843152ACopper 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 radicalsSANDOZ LTD·Filed 1987·Granted Jun 27, 1989·1 cites·16 claims
- 1529US5693765ASubstituted 5- 5'- (5"- Chloro-2", 4"-difluoropyrimid-6"-ylamino) phenylcarbonylamino!-2'-sulfophenyl-azo!-6-hydroxy-4-methyl-3-sulfomethylpyrid-2-onesCLARIANT FINANCE BVI LTD·Filed 1995·Granted Dec 2, 1997·0 cites·34 claims
Join the waitlist — get patent alerts
Get an alert when Paul Doswald files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →