Inventor · disambiguated record
Reinhard Pedrazzi
Also filed as: PEDRAZZI REINHARD
30 granted patents·3 pending applications·407 citations·filing 1973–2003
97Inventor score
Top patents by PatentIndex Score
33 records- 0197US4273707AMonoazo and disazo dyes containing at least one sulfo group and at least two basic or cationic groupsSANDOZ LTD·Filed 1979·Granted Jun 16, 1981·33 cites·34 claims
- 0294US4363761AMonoazo dyes containing at least one sulfo group and at least two basic or cationic groupsSANDOZ LTD·Filed 1980·Granted Dec 14, 1982·25 cites·33 claims
- 0392US5006128ASubstituted 2,4-di[4'-(disulfonaphth-2"-ylazo)phenylamino]-6-amino-1,3,5-triazinesSANDOZ LTD·Filed 1989·Granted Apr 9, 1991·31 cites·5 claims
- 0492US4686285ABasic azo and non-azo compounds having one or two disubstituted 1,3,5-triazine rings each of which is linked through a bridging radical to the 1-position of a pyrazole ringSANDOZ LTD·Filed 1985·Granted Aug 11, 1987·38 cites·20 claims
- 0590US4367172ADisazo dyes containing at least one sulfo group and at least two basic or cationic groupsSANDOZ LTD·Filed 1980·Granted Jan 4, 1983·19 cites·32 claims
- 0687US4594410AAzo compounds containing both sulfo groups and basic or cationic groups which compounds are in metal-free or 1:1 metal complex formSANDOZ LTD·Filed 1982·Granted Jun 10, 1986·20 cites·23 claims
- 0786US5122605ASulfo group containing triphendioxazines having at least one 1,3,5-triazine ringSANDOZ LTD·Filed 1990·Granted Jun 16, 1992·26 cites·21 claims
- 0885US4742160ASulfo group-containing basic azo compounds having a central 1,3,5-triazine ring and two terminal 1-hydroxynaphthyl-2 groups and 1:1 and 1:2 metal complexes therofSANDOZ LTD·Filed 1986·Granted May 3, 1988·22 cites·18 claims
- 0982US4877412ASulfo group-containing monoazo compounds having an unsubstituted or substituted 4-(benzothiazol-2'-yl)phenyl or 4-(6'-benzothiazol-2"yl)-benzothiazol-2'-yl)phenyldiazo component radical and a 6-hydroxypyrid-2-one coupling component radicalSANDOZ LTD·Filed 1988·Granted Oct 31, 1989·17 cites·20 claims
- 1082US4673735AAzo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates thereforSANDOZ LTD·Filed 1984·Granted Jun 16, 1987·15 cites·13 claims
- 1181US5929215ABasic monoazo compoundsCLARIANT FINANCE BVI LTD·Filed 1998·Granted Jul 27, 1999·21 cites·9 claims
- 1280US6432185B1Red acid dyes for injet printing and paper dyeingCLARIANT GMBH·Filed 2000·Granted Aug 13, 2002·17 cites·11 claims
- 1374US4764175AMetal-free monoazo and disazo compounds having a 1-hydroxy-5,6-, 7- or 8- substituted 1,3,5-triazinylamino-3- or 4 sulfonic acid coupling component radical and 1:1 copper complexesSANDOZ LTD·Filed 1986·Granted Aug 16, 1988·12 cites·20 claims
- 1472US4875903AMonoazo compounds containing a 2-sulfophenyl diazo component radical and a 1-hydroxy-naphthalene-sulfonic or disulfonic acid coupling component radical and two substituted 1,3,5-triazine ringsSANDOZ LTD·Filed 1987·Granted Oct 24, 1989·10 cites·19 claims
- 1570US3953419ASalts of stilbene-azo and stilbene-azoxy dyes and process for their preparationSANDOZ LTD·Filed 1973·Granted Apr 27, 1976·6 cites·19 claims
- 1667US4780106AUse of metal-free azo _compounds having at least one _6-hydroxypyrid-2-one _coupling component radical and metal _complexes thereof for dyeing _substrates and substrates dyed therewithSANDOZ LTD·Filed 1987·Granted Oct 25, 1988·8 cites·24 claims
- 1764US6406527B1Water-soluble red acid dyes, their preparation and useCLARIANT GMBH·Filed 2000·Granted Jun 18, 2002·6 cites·11 claims
- 1860US4670546ADisazo and polyazo compounds containing at least two cationic groups in metal-free or 1:1 or 1:2 metal complex formSANDOZ LTD·Filed 1984·Granted Jun 2, 1987·6 cites·14 claims
- 1958US5498701ABasic disazo compounds containing sulphonic acid groupsSANDOZ LTD·Filed 1994·Granted Mar 12, 1996·11 cites·15 claims
- 2056US5665871AMixtures of copper phthalocyanine and copper-containing azo dyes, their production and useCLARIANT FINANCE BVI LTD·Filed 1995·Granted Sep 9, 1997·20 cites·24 claims
- 2155US4833235ASulfo group-containing disaz compounds having a heterocyclic coupling component radicalSANDOZ LTD·Filed 1987·Granted May 23, 1989·5 cites·32 claims
- 2252US6140478ABasic azo compounds, their production and useCLARIANT FINANCE BVI LTD·Filed 1996·Granted Oct 31, 2000·9 cites·12 claims
- 2351US4876342AOxazine compounds substituted by one or more basic groups and preparation thereofSANDOZ LTD·Filed 1988·Granted Oct 24, 1989·4 cites·21 claims
- 2451US4465627ASulfo group-free disazo, trisazo and tetrakisazo compounds containing at lease one basic or cationic groupSANDOZ LTD·Filed 1981·Granted Aug 14, 1984·4 cites·15 claims
- 2550US7183409B2Basic mono- and bisazo compoundsCLARIANT FINANCE BVI LTD·Filed 2002·Granted Feb 27, 2007·2 cites·7 claims
- 2648US7097699B2Composition for printing recording materialsCLARIANT FINANCE BVI LTD·Filed 2002·Granted Aug 29, 2006·1 cites·9 claims
- 2744US6464768B1Water-soluble stilbene dyes, their preparation and useCLARIANT GMBH·Filed 1999·Granted Oct 15, 2002·9 cites·15 claims
- 2844US2003182733A1Use of organic substancesFiled 2001·Application pending·0 cites
- 2943US6930178B21:2 chromium complex dyesCLARIANT FINANCE BVI LTD·Filed 2002·Granted Aug 16, 2005·0 cites·8 claims
- 3040US5495003A2,2'-disulfo-4,4'-substituted triazinylaminophenyl disazostilbenesSANDOZ LTD·Filed 1994·Granted Feb 27, 1996·8 cites·43 claims
- 3138US2003060608A1Composition for printing recording materialsFiled 2001·Application pending·0 cites
- 3237US2005174410A1Composition for printing recording materialsFiled 2003·Application pending·0 cites
- 3327US4126608AProcess for the production of salts of stilbene-azo and stilbene-azoxy dyesFIDELITY UNION TRUST COMPANY A·Filed 1975·Granted Nov 21, 1978·2 cites·25 claims
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