Inventor · Billancourt, FR

Frédéric Legrand

40Patents
10h-index
27Co-inventors
71Inventor score

Filing activity: Jan 28, 2000 → Jun 14, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US6260556A Anhydrous composition for bleaching keratin fibers Human Necessities 65 Expired
US6800098B1 Oxidation dye composition for keratinic fibres containing a thickening polymer with an ether plastic skeleton Human Necessities 41 Expired
US7217298B2 Ready-to-use bleaching compositions, preparation process and bleaching process Human Necessities 34 Expired
US6984250B1 Composition, method, and kit for the bleaching or permanent reshaping of keratin fibers, comprising at least one thickening polymer with an aminoplast-ether skeleton Human Necessities 34 Expired
US7651533B2 Dye composition with a reduced content of starting materials, process for dyeing keratin fibers using the same and device therefor Human Necessities 31 Active
US7575605B2 Dye composition comprising at least one glycerol ester and a process for dyeing keratin fibers using the composition Human Necessities 30 Active
US6379401B1 Anhydrous composition for bleaching keratin fibers comprising a combination of a water-soluble thickening polymer and a nonionic amphiphilic polymer comprising at least one fatty chain Human Necessities 21 Expired
US7135167B2 Oxidizing composition for treating keratin fibers, comprising a particular aminosilicone Chemistry; Metallurgy 17 Expired
US6846333B2 Keratin fiber dyeing composition comprising a particular aminosilicone Chemistry; Metallurgy 15 Expired
US8241370B2 Composition comprising an alkanolamine, a basic amino acid and a suitably selected additional alkaline agent Human Necessities 13 Active
US7569078B2 Dye composition comprising at least one cellulose and process for dyeing keratin fibers using the dye composition Human Necessities 10 Active
US7220285B2 Pulverulent composition for bleaching human keratin fibers Human Necessities 6 Expired
US9565915B2 Compositions and methods for altering the appearance of hair Human Necessities 6 Active
US11213471B2 Composition for dyeing the hair, comprising an oxidation base, a 2-amino-5-ethylphenol coupler and a fatty substance Human Necessities 5 Active
US7128902B2 Reducing composition for treating keratin fibres, comprising a particular aminosilicone Chemistry; Metallurgy 4 Expired
US7442214B2 Dye composition comprising at least one non-ionic associative polymer and process for dyeing keratin fibers using same Human Necessities 4 Active
US7022144B2 Oxidizing compositions containing a mixture of polymers including at least one copolymer based on acrylamide and 2-acrylamido-2-methylpropanesulphonic acid Human Necessities 3 Expired
US7803355B2 Anhydrous paste for bleaching human keratin fibers Human Necessities 3 Expired
US6641618B1 Ready-to-use aqueous composition for bleaching keratin fibers, comprising a combination of a water-soluble solvent and a nonionic and/or anionic amphiphilic polymer comprising at least one fatty chain Emerging Cross-Sectional Technologies 3 Expired
US10515426B2 Method for estimating a characteristic of a liquefied natural gas load Physics 3 Active
US7550015B2 Dye composition with a reduced content of starting materials, and process for dyeing keratin fibers using the same Human Necessities 2 Active
US7179300B2 Cosmetic composition containing sulfinic acid derivatives Chemistry; Metallurgy 2 Expired
US8343237B2 Composition comprising an alkanolamine, an amino acid and an associative polymer Human Necessities 2 Active
US8257447B2 Composition comprising an alkanolamine, an amino acid and a cationic polymer Human Necessities 2 Active
US6916344B1 Direct dyeing composition for keratinic fibers containing a thickening polymer with an ether plastic skeleton Human Necessities 2 Expired

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