Inventor · Le Vésinet, FR

Roland De La Mettrie

42Patents
13h-index
26Co-inventors
81Inventor score

Filing activity: Oct 26, 1984 → Jun 27, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US6010541A Oxidation dye composition for keratin fibers comprising a nonionic amphiphilic polymer Human Necessities 61 Expired
US5919273A Compositions and processes for dyeing keratin fibers with an oxidation base, a coupler, a cationic direct dye, and an oxidizing agent Human Necessities 60 Expired
US5993490A Composition for the oxidation dyeing of keratin fibers containing a cationic direct dye and dyeing process using this composition Human Necessities 58 Expired
US6001135A Compositions and processes for dyeing keratin fibers with cationic direct dyes, oxidation bases, and oxidizing agents Human Necessities 54 Expired
US6074439A Oxidation dye composition for keratin fibers containing an oxidation dye precursor and an anionic amphiphilic polymer Human Necessities 39 Expired
US5976195A Oxidation dye composition for keratin fibers containing an oxidation dye precursor and amphiphilic polymer Human Necessities 38 Expired
US5879412A Compositions and processes for dyeing keratin fibers with an oxidation base, a coupler, a cationic direct dye, and an oxidizing agent Human Necessities 36 Expired
US6277155A Oxidation dye composition for keratin fibers comprising a nonionic amphiphilic polymer Human Necessities 36 Expired
US6387855B1 Washing and conditioning compositions based on silicon and hydrophobic guar gum Human Necessities 29 Expired
US7914775B2 Composition for treating keratinous materials comprising a cationic associative polyurethane polymer and a protecting or conditioning agent Human Necessities 20 Expired
US5989295A Oxidation dye composition for keratin fibres, comprising an anionic amphiphilic polymer Human Necessities 20 Expired
US7740663B2 Anhydrous compositions in paste form for bleaching keratin fibers Human Necessities 17 Active
US5824296A Solid hair composition containing a particular structuring agent Human Necessities 16 Expired
US5297566A Method and device for increasing the volume of a head of hair Human Necessities 13 Expired
US7066966B2 Oxidation dyeing composition for keratin fibers comprising a cationic poly(vinyllactam) Human Necessities 11 Expired
US6251145A Oxidizing composition and uses for dyeing, permanently setting or bleaching keratin fibres Human Necessities 11 Expired
US6261325A Oxidizing composition for treating keratin fibres Human Necessities 11 Expired
US5741337A Process for the oxidative dyeing of keratinous fibres with a composition which contains an oxidation dye precursor, a coupler, and an oxidant at an acidic pH Human Necessities 9 Expired
US5725847A Solid hair-removing composition containing a particular structuring agent Human Necessities 7 Expired
US5690696A Combinations of two para-phenylenediamine oxidation bases and a meta-phenylenediamine coupler for the oxidation dyeing of keratinous fibers Human Necessities 7 Expired
US7101405B2 Oxidation dyeing composition for karatinous fibers comprising a cationic associative polyurethane Human Necessities 6 Expired
US6228129A Oxidation dyeing composition for keratin fibres and dyeing method using said composition Human Necessities 6 Expired
US6241784A Oxidizing composition and uses for dyeing, for permanently setting or bleaching keratin fibres Human Necessities 6 Expired
US6342078B1 Oxidation dyeing composition for keratin fibres and dyeing method using said composition Human Necessities 5 Expired
US6273920A Oxidizing composition and uses for treating keratin fibres Human Necessities 4 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.