Inventor · disambiguated record
Friedrich Lehr
Also filed as: LEHR FRIEDRICH
11 granted patents·2 pending applications·60 citations·filing 1984–2015
87Inventor score
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13 records- 0189US4670547ATetrakisazo compounds having two 1-hydroxy-3- or 4-sulfo-6- or 7-amino- or substituted amino-naphthalene coupling component radicals the amino or substituted amino groups of which are linked 1,3,5-triazine ringsSANDOZ LTD·Filed 1984·Granted Jun 2, 1987·23 cites·19 claims
- 0273US6844428B2Use of disazo compoundsCLARIANT FINANCE BVI LTD·Filed 2001·Granted Jan 18, 2005·9 cites·17 claims
- 0356US6365719B1Bridged disazo compoundsCLARIANT FINANCE BVI LTD·Filed 1998·Granted Apr 2, 2002·6 cites·13 claims
- 0454US2010267957A1Anthraquinone Dyes As Photosensitizers In Photovoltaic CellsCLARIANT FINANCE BVI LTD·Filed 2008·Application pending·0 cites
- 0552US5747657AReactive monoazo dyestuffs and the processes in which they are producedCLARIANT FINANCE BVI LTD·Filed 1995·Granted May 5, 1998·5 cites·16 claims
- 0651US5334710ACompounds having non-linear optical propertiesSANDOZ LTD·Filed 1993·Granted Aug 2, 1994·9 cites·9 claims
- 0750US10392514B2Storage-stable dye solutionsARCHROMA IP GMBH·Filed 2015·Granted Aug 27, 2019·0 cites·14 claims
- 0850US7183409B2Basic mono- and bisazo compoundsCLARIANT FINANCE BVI LTD·Filed 2002·Granted Feb 27, 2007·2 cites·7 claims
- 0949US7597721B2Concentrated aqueous compositions of dyestuffsCLARIANT FINANCE BVI LTD·Filed 2004·Granted Oct 6, 2009·1 cites·14 claims
- 1049US5006644ACopper complexes of further substituted 2,4-di-[2'-(2"-hydroxyphenylazo)-1'-hydroxy-3'-sulfonaphthyl-6'-amino]-6-chloro-1,3,5-triazinesSANDOZ LTD·Filed 1987·Granted Apr 9, 1991·4 cites·18 claims
- 1144US8921564B2Basic bisazo compoundsHASEMANN LUDWIG·Filed 2007·Granted Dec 30, 2014·0 cites·14 claims
- 1244US2003182733A1Use of organic substancesFiled 2001·Application pending·0 cites
- 1331US4820808ACopper Complexes of disazo compounds having two substituted 2-hydroxyphenyl diazo component radicals and two 3-methylpyrazol-5-one coupling component radicalsSANDOZ LTD·Filed 1986·Granted Apr 11, 1989·1 cites·19 claims
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