Alain Lagrange
212Patents
17h-index
69Co-inventors
89Inventor score
Filing activity: Jul 2, 1975 → Dec 19, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6099593A | Compositions for dyeing keratin fibers containing pyrazolo(1,5-a)pyrimidine derivatives and dyeing processes | Chemistry; Metallurgy | 138 | Expired |
| US5792221A | Hydroxypropylated 2-nitro-p-phenylenediamines, and compositions for dyeing keratinous fibers which contain hydroxypropylated 2-nitro-p-phenylenediamines | Chemistry; Metallurgy | 53 | Expired |
| US6638321B1 | Cationic oxidation bases, their use for oxidation dyeing of keratin fibres, dyeing compositions and dyeing methods | Chemistry; Metallurgy | 31 | Expired |
| US6248137A | Compositions for dyeing keratinous fibres, containing 3-aminopyrazolo [1,5-a]pyrimidines, method of dyeing and novel 3-aminopyrazolo [1,5-a]pyrimidines | Chemistry; Metallurgy | 26 | Expired |
| US6660046B1 | Cationic oxidation bases, their use of dyeing keratin fibres, dyeing compositions and dyeing methods | Chemistry; Metallurgy | 26 | Expired |
| US5938792A | Process for dyeing keratinous fibers with aminoindoles and oxidation dye precursors at basic Ph's and dyeing agents | Human Necessities | 26 | Expired |
| US6270533A | Cationic oxidation bases, their use for oxidation dyeing of keratin fibres, dyeing compositions and dyeing methods | Chemistry; Metallurgy | 25 | Expired |
| US6240929A | Heterocyclic quaternary polyammonium silicon polymers and their use in cosmetic compositions | Chemistry; Metallurgy | 24 | Expired |
| US5849909A | Benzalmalonatae/phenylcyanoacrylate-substituted S-triazine compounds | Human Necessities | 23 | Expired |
| US6027538A | Compositions for dyeing keratinous fibers comprising indazoleamine derivatives and dyeing process | Human Necessities | 22 | Expired |
| US5496543A | Product based on inorganic or organic particles bearing an indoline-based product | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6419711B1 | Oxidation dyeing compositions containing a cationic coupling agent, novel cationic coupling agents | Chemistry; Metallurgy | 19 | Expired |
| US5980585A | Compositions for dyeing keratinous fibers comprising imidazopyridine derivatives and process | Human Necessities | 19 | Expired |
| US6565614B1 | Cationic oxidation bases, their use for oxidation dyeing of keratin fibres, dyeing compositions and dyeing methods | Chemistry; Metallurgy | 19 | Expired |
| US5752982A | Methods for dyeing keratinous fibers with compositions which contain aminoindole couplers, oxidation dye precursors, and oxidizing agents at acid pHs | Human Necessities | 18 | Expired |
| US5610257A | Photoprotective/cosmetic compositions comprising benzotriazole-substituted polyorganosiloxanes/polyorganosilanes | Human Necessities | 18 | Expired |
| US6340371B1 | Cationic ortho-phenylenediamines, their use for the oxidation dyeing of keratin fibers, dye compositions and dyeing processes | Chemistry; Metallurgy | 17 | Expired |
| US5443596A | Keratinous fiber dyeing compositions and processes utilizing oxidation dye precursors in combination with dimethoxy meta-aminophenol couplers | Chemistry; Metallurgy | 16 | Expired |
| US5217709A | Sunscreening compositions containing 5-benzylidene-3-oxacyclopentanone | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6379398B1 | Cationic compounds, their use for the oxidation dyeing of keratin fibres, dye compositions and dyeing processes | Chemistry; Metallurgy | 15 | Expired |
| US6391062B1 | Use of cationic fused polycyclic compounds for dyeing keratin substances, dye compositions and dyeing processes | Human Necessities | 15 | Expired |
| US5755829A | Processes for dyeing keratinous fibers with compositions which contain N-substituted 4-hydroxyindoline derivatives as couplers and oxidation bases | Chemistry; Metallurgy | 14 | Expired |
| US6416770B1 | Use of heterocyclic quaternary polyammonium polymers as protective agent for keratin fibres and cosmetic compositions | Human Necessities | 14 | Expired |
| US7641703B2 | Composition for the coloring of keratinous fibers comprising a halochromic compound and/or the dye corresponding to this compound, and method of use thereof | Human Necessities | 14 | Active |
| US5514188A | Oxidation dye composition for keratinous fibres comprising a para-aminophenol, 2-methyl-5-aminophenol and a para-phenylenediamine and/or a bis(phenylalkylenediamine) | Human Necessities | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.