Inventor · disambiguated record
Edgar Lieske
Also filed as: LIESKE EDGAR · WEINRICH ERWIN
35 granted patents·378 citations·filing 1976–1996
97Inventor score
Top patents by PatentIndex Score
35 records- 0192US4138478AAgents for reducing the damage to hair during bleaching and dyeingHENKEL KGAA·Filed 1976·Granted Feb 6, 1979·94 cites·14 claims
- 0289US4745652ANew tetra-aminopyrimidine derivatives and their use in hair-dyeing preparationsHENKEL KGAA·Filed 1987·Granted May 24, 1988·28 cites·15 claims
- 0382US4994087ACompounds containing substituted phenylamino and pyridyl groups and hair dyeing preparations using themHENKEL KGAA·Filed 1988·Granted Feb 19, 1991·18 cites·20 claims
- 0467US4314809ANovel coupler components for oxidation hair dyes, the manufacture thereof, and hair colorantsHENKEL KGAA·Filed 1979·Granted Feb 9, 1982·18 cites·6 claims
- 0566US4171203AHair dye compositions containing 3,5-diamino-2-substituted-alkylbenzenesHENKEL KGAA·Filed 1977·Granted Oct 16, 1979·17 cites·20 claims
- 0660US4226852ATwo-component peroxide hair bleaching compositionsHENKEL KGAA·Filed 1979·Granted Oct 7, 1980·17 cites·3 claims
- 0755US4976742AMETA-aminophenols useful as oxidation hair dye couplersHENKEL KGAA·Filed 1988·Granted Dec 11, 1990·17 cites·16 claims
- 0854US4322212AOxidation hair dyes comprising substituted benzotriazolesHENKEL KGAA·Filed 1980·Granted Mar 30, 1982·15 cites·11 claims
- 0952US4129414AOxidation hair colorants containing water-soluble polyhalogen 3-aminophenols as couplersHENKEL KGAA·Filed 1976·Granted Dec 12, 1978·8 cites·21 claims
- 1051US5685881AAromatic allylaminonitro compounds, hair dye compositions containing aromatic allylaminonitio compounds, and synthetic and natural fiber dyeing processHENKEL KGAA·Filed 1993·Granted Nov 11, 1997·4 cites·11 claims
- 1149US5609650ADyeing of keratin fibres with indolines using metal salts as catalystsHENKEL KGAA·Filed 1996·Granted Mar 11, 1997·12 cites·5 claims
- 1248US4900325AHair-dyeing preparationsHENKEL KGAA·Filed 1988·Granted Feb 13, 1990·13 cites·20 claims
- 1348US4129413AOxidation hair dyes based upon tetraaminopyrimidine developers and mono- and dialkyl -m- dihydroxy benzene couplersHENKEL KGAA·Filed 1977·Granted Dec 12, 1978·12 cites·16 claims
- 1445US5089025AHair dye compositions and certain 1,2,3,4-tetrahydronitroquinoxalines useful thereinHENKEL KGAA·Filed 1989·Granted Feb 18, 1992·10 cites·20 claims
- 1545US4629466AOxidation hair dyes comprising bis-(2,4-diaminophenyl)-alkanes as coupling componentsHENKEL KGAA·Filed 1983·Granted Dec 16, 1986·8 cites·9 claims
- 1645US4186186AGuanidine accelerators for peroxide hair bleaching compositionsHENKEL KGAA·Filed 1978·Granted Jan 29, 1980·4 cites·7 claims
- 1744US4838893AOxidation hair dyes comprising substituted dihydroxypyridines as coupling componentsHENKEL KGAA·Filed 1987·Granted Jun 13, 1989·10 cites·22 claims
- 1843US4213758AOxidation hair dyes based upon tetraaminopyrimidine developers and couplers thereforHENKEL KGAA·Filed 1978·Granted Jul 22, 1980·9 cites·9 claims
- 1942US6719811B1Oxidation colorants for keratin fibersHENKEL KGAA·Filed 1991·Granted Apr 13, 2004·10 cites·14 claims
- 2040US4226595AOxidation hair-coloring preparation based upon N,N-bis-(β-hydroxyethyl)-m-phenylenediaminesHENKEL KGAA·Filed 1978·Granted Oct 7, 1980·6 cites·16 claims
- 2138US4619666AHair dyes containing amino-nitrobenzoic acid or amino-nitrobenzene sulfonic acids as substantive dyesHENKEL KGAA·Filed 1985·Granted Oct 28, 1986·7 cites·15 claims
- 2237US4842612AAminophenyl alkylenediamines useful in oxidation hair dyesHENKEL KGAA·Filed 1988·Granted Jun 27, 1989·6 cites·25 claims
- 2336US4828568AOxidation hair-dyeing preparationsHENKEL KGAA·Filed 1987·Granted May 9, 1989·6 cites·19 claims
- 2434US4552565AHair dyes: diresorcyl sulphide, sulphoxide or sulphone coupling agentsHENKEL KGAA·Filed 1984·Granted Nov 12, 1985·2 cites·18 claims
- 2533US5104412AHair dyeing compositionsHENKEL KGAA·Filed 1989·Granted Apr 14, 1992·2 cites·16 claims
- 2633US4698066AAmine oxidation dye hair treating compositionsHENKEL KGAA·Filed 1986·Granted Oct 6, 1987·4 cites·34 claims
- 2733US4575377AOxidation hair dyes comprising resorcinol derivatives as coupling componentsHENKEL KGAA·Filed 1984·Granted Mar 11, 1986·4 cites·15 claims
- 2832US4859206AHair dye preparations containing nitrodiphenylamine derivativeHENKEL KGAA·Filed 1988·Granted Aug 22, 1989·2 cites·34 claims
- 2931US4832697AHair dye preparations containing substantive nitrodiphenylamine derivativesHENKEL KGAA·Filed 1988·Granted May 23, 1989·2 cites·29 claims
- 3031US4325704AHair dyesHENKEL KGAA·Filed 1980·Granted Apr 20, 1982·7 cites·16 claims
- 3130US4756716APreparations containing substantive nitrodiphenylamine derivative hair dyesHENKEL KGAA·Filed 1986·Granted Jul 12, 1988·2 cites·36 claims
- 3229US4900327APreparations containing substantive nitrodiphenylamine derivative hair dyesHENKEL KGAA·Filed 1988·Granted Feb 13, 1990·0 cites·22 claims
- 3329US4756715AHair-dyeing preparations containing substantive nitrodiphenylamine derivativesHENKEL KGAA·Filed 1986·Granted Jul 12, 1988·1 cites·36 claims
- 3428US4684371AOxidation hair dyes comprising m-phenylenediamine derivatives as coupling componentsHENKEL KGAA·Filed 1985·Granted Aug 4, 1987·2 cites·5 claims
- 3524US5246466AOxidation dyesHENKEL KOMMANDITGELSELLSCHAFT·Filed 1991·Granted Sep 21, 1993·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →