HD

Hervé David

LS L'Oreal S.A.: 18 patents #32 of 559Top 6%
L' L'Oreal: 8 patents #302 of 2,221Top 15%
L' L'Oréal: 1 patents #22 of 67Top 35%
Overall (All Time): #145,115 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 25 most recent of 27 patents

Patent #TitleCo-InventorsDate
11278482 Process for dyeing keratin materials using at least one blue, purple or green dye and at least one disulfide, thiol or protected thiol fluorescent dye Christian Blaise 2022-03-22
10980729 Process for dyeing keratin fibres using at least one particular azinium dye and at least one fluorescent dye Christian Blaise 2021-04-20
10959930 Process for dyeing keratin fibres using at least one particular triarylmethane dye and at least one fluorescent dye Christian Blaise, Aziz Fadli 2021-03-30
10888510 Process for dyeing keratin fibres using at least one particular 2- or 4-azopyridinium dye and at least one fluorescent dye Christian Blaise 2021-01-12
9839591 Anionic dye or brightener bearing an ammonium or phosphonium counterion, dye composition comprising them and process for dyeing keratin fibres using these dyes 2017-12-12
8012220 Specific monocationic monochromophoric compounds of hydrazone type comprising a 2-, 4-pyridinium or 2-, 4-quinolinium unit, synthesis thereof, dye compositions containing them, and method for dyeing keratin fibres Nadège Murguet, Andrew Greaves 2011-09-06
7988741 Specific naphthalmide-type dyes, dye composition comprising at least one such dye, process using same and uses Tiina Luukas, Andrew Greaves 2011-08-02
7569079 Polycationic monochromophoric hydrazone compounds, dye compositions comprising such polycationic compounds and dyeing process using them Nadège Murguet 2009-08-04
7438728 Dissymmetrical diazo compounds comprising 2-pyridinium group and a cationic or non-cationic linker, compositions comprising them, method for coloring, and device Andrew Greaves, Nicolas Daubresse 2008-10-21
7410506 Dicationic bis-hydrazone compound, dye composition comprising at least one such compound, implementation process therefor and uses thereof Andrew Greaves, Leïla Hercouet, Alain Lagrange 2008-08-12
7399320 Use of tetra-azapentamethine compounds as direct dyeing agents and novel tetra-azapentamethine compounds Herve Burgaud, Rui Filipe Andrade Pereira, Beatrice Belcour-Castro 2008-07-15
7396368 Symmetrical diazo compounds comprising 4-pyridinium groups and a cationic or non-cationic linker, compositions comprising them, method for coloring, and device Andrew Greaves, Nicolas Daubresse 2008-07-08
7351267 Symmetrical diazo compounds comprising 2-imidazolium groups and a non-cationic linke, compositions comprising them, method of coloring, and device Andrew Greaves, Nicolas Daubresse 2008-04-01
7311736 Use of tetra-azapentamethine compounds as direct dyeing agents and novel tetra-azapentamethine compounds Herve Burgaud, Rui Filipe Andrade Pereira, Beatrice Belcour-Castro 2007-12-25
7303591 Composition comprising at least one mixed dye comprising at least two chromophores of (hetero) aromatic nitro or cyclic azine type, dyeing process, and mixed dyes Andrew Greaves, Henri Samain 2007-12-04
7300471 Composition comprising at least one mixed dye based on at least one chromophore of azo or tri(hetero) arylmethane type, dyeing process and mixed dyes. Andrew Greaves, Henri Samain 2007-11-27
7288121 Composition comprising at least one mixed dye comprising at least one chromophore chosen from compounds of the methine family and/or the carbonyl family, dyeing process and kit, and mixed dyes Andrew Greaves, Henri Samain 2007-10-30
7288122 Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor Andrew Greaves 2007-10-30
7288639 Dyssymmetrical diazo compounds having at least one 4-pyridinium unit and a cationic or non-cationic linker, compositions comprising them, method of coloring, and device Andrew Greaves, Nicolas Daubresse 2007-10-30
7285138 Cationic diazo compound, compositions comprising at least one cationic diazo compound as a direct dye, a process for dyeing keratin fibers and device therefore Andrew Greaves 2007-10-23
7282069 Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor Andrew Greaves 2007-10-16
7282068 Polycationic azo compounds for dyeing keratin fibers, dye composition containing the same, and methods for making such compounds Alain Lagrange, Andrew Greaves 2007-10-16
7247713 Symmetrical diazo compounds containing 2-pyridinium groups and cationic or non-cationic linker, compositions comprising them, method of coloring, and device Andrew Greaves, Nicolas Daubresse 2007-07-24
7208586 Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor Andrew Greaves 2007-04-24
7077873 Composition for the dyeing of human keratinous fibres comprising a monocationic monoazo dye Nathalie Berteuil, Laurent Vidal 2006-07-18