ML

Madeleine Leduc

L' L'Oreal: 34 patents #43 of 2,221Top 2%
LS L'Oreal S.A.: 19 patents #27 of 559Top 5%
L' L'Oréal: 1 patents #22 of 67Top 35%
Overall (All Time): #47,723 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 25 most recent of 54 patents

Patent #TitleCo-InventorsDate
9554977 Triaromatic azomethine direct dyes, dye composition comprising at least one such dye, method of implementation and use Stéphane Sabelle, Olivier Guerard 2017-01-31
9226883 Particular azomethine direct dyes, dye composition comprising at least one such compound, implementation process therefore and use thereof Stéphane Sabelle 2016-01-05
8771376 Composition comprising at least one 2-pyrrolidone functionalized with an ester or amide radical, and at least one pigment or direct dye, for dyeing keratin materials Stéphane Sabelle, Christian Blaise 2014-07-08
8585779 Composition comprising at least one 2-pyrrolidone functionalized in the 4 position with a carboxylic acid or amide, and at least one direct dye or a pigment for dyeing keratin fibres Stéphane Sabelle 2013-11-19
8105394 Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors Stéphane Sabelle, Eric Metais, Christophe Rondot 2012-01-31
8083809 Azomethine direct dyes or reduced precursors of these dyes obtained from 2-chloro-3-amino-6-methylphenol, and hair dyeing method starting from these dyes and precursors Stéphane Sabelle, Eric Metais, Christophe Rondot 2011-12-27
8066782 Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors Eric Metais, Stéphane Sabelle, Christophe Rondot 2011-11-29
7132534 Para-phenylenediamine derivatives containing a pyrrolidyl group, and use of these derivatives for coloring keratin fibers Stéphane Sabelle, Laure Ramos 2006-11-07
7090703 Para-phenylenediamine derivatives comprising a cyclic diaza group substituted with a cationic radical, and use of these derivatives for dyeing keratin fibers Stéphane Sabelle, Alain Genet 2006-08-15
6946005 Pyrrolidinyl-substituted para-phenylenediamine derivatives substituted with a cationic radical, and use of these derivatives for dyeing keratin fibers Stéphane Sabelle, Laure Ramos, Michel Philippe 2005-09-20
6923835 Bis-para-phenylenediamine derivatives comprising a pyrrolidyl group and use of these derivatives for dyeing keratin fibres Stéphane Sabelle, Laure Ramos 2005-08-02
6884265 Dyeing composition for dyeing keratinous fibers comprising at least one particular dicationic diazo dye Laurent Vidal 2005-04-26
6884266 Dyeing composition for dyeing keratinous fibers comprising a cationic azo-dye Laurent Vidal 2005-04-26
6730789 Composition for dyeing keratinous fibers containing 3 amino pyrazolo- [1,5-a] pyridines, dyeing method, novel 3-amino pyrazolo-[1,5-a] pyridines Veronique Birault, Eric Terranova 2004-05-04
6667343 Siloxane dyes, compositions containing them and uses thereof Herve Richard, Alain Lagrange 2003-12-23
6517742 Sunscreen agents, photoprotective cosmetic compositions containing them and uses thereof Herve Richard 2003-02-11
6416770 Use of heterocyclic quaternary polyammonium polymers as protective agent for keratin fibres and cosmetic compositions Herve Richard, Alain Lagrange 2002-07-09
6376679 Photoprotective/cosmetic compositions comprising novel benz-x-azole-substituted silane/siloxane sunscreens Herve Richard, Alain Lagrange 2002-04-23
6361764 Insoluble s-triazine derivatives and their use as UV filters Herve Richard, Alain Lagrange 2002-03-26
6203578 Use of silicon compounds to dye human keratin fibers; novel compounds and compositions containing them Herve Richard, Alain Lagrange 2001-03-20
6197911 Siloxane dyes, compositions containing same and uses thereof Herve Richard, Alain Lagrange 2001-03-06
6176885 Use of silicon compounds to dye human keratin fibres; novel compounds and compositions containing them Herve Richard, Alain Lagrange 2001-01-23
6114559 Silicone-substituted cinnamamide/malonamide/malonate compounds and photoprotective compositions comprised thereof Herve Richard 2000-09-05
6080880 Silicone-substituted cinnamamide/malonamide/malonate compounds and photoprotective compositions comprised thereof Herve Richard 2000-06-27
6045812 Cyclodextrin derivatives Herve Richard 2000-04-04