Inventor
METAIS ERIC
FR14 patents
⚠️ This page may combine multiple inventors who share the name “METAIS ERIC”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OREAL
11 patentsUS7582123B2Sep 1, 2009
Coloring composition comprising at least one azomethine compound with a pyrazolinone unit
OREAL11 citations83
US7422609B2Sep 9, 2008
Double para-phenylenediamines joined by an aromatic group for dyeing keratin fibers
OREAL3 citations61
US7329288B2Feb 12, 2008
N-heteroaryl secondary para-phenylenediamine, a dye composition comprising such a para-phenylenediamine, a process for preparing this composition and use thereof
OREAL2 citations61
US7776107B2Aug 17, 2010
Aminoindolizines, dyeing composition comprising at least one aminoindolizine, methods and uses thereof
OREAL2 citations60
US8034124B2Oct 11, 2011
Azo derivatives containing a pyrazolinone unit for dyeing keratin fibres
OREAL2 citations51
US7435268B2Oct 14, 2008
N-alkylhydroxylated secondary para-phenylenediamine compounds, composition for dyeing keratin fibers comprising the same, and dyeing processes using the composition
OREAL0 citations51
US7396367B2Jul 8, 2008
Double secondary para-phenylenediamine compounds, dye compositions comprising same, and dyeing process using the compositions
OREAL0 citations51
US7384432B2Jun 10, 2008
Secondary para-phenylenediamines having a carboxyl group, dye compositions comprising the same, and dyeing processes using the compositions
OREAL1 citations50
US7429278B2Sep 30, 2008
N-alkyleheteroaryl secondary para-phenylenediamine and composition comprising such a para-phenylenediamine
OREAL0 citations40
US7347879B2Mar 25, 2008
Sulfur-containing secondary para-phenylenediamines dye compositions comprising such para-phenylenediamines, processes, and uses thereof
OREAL0 citations40
US7311737B2Dec 25, 2007
Secondary para-phenylenediamine compounds comprising N-alkylfluorine, dye compositions comprising them and processes of dyeing therewith
OREAL0 citations40
LEDUC MADELEINE
3 patentsUS8105394B2Jan 31, 2012
Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors
LEDUC MADELEINE2 citations59
US8083809B2Dec 27, 2011
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
LEDUC MADELEINE2 citations59
US8066782B2Nov 29, 2011
Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors
LEDUC MADELEINE6 citations59