Issued Patents All Time
Showing 51–75 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34300 | Chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said compositions | Jean J. Vandenbossche, Herve Borowiak, Gerard Lang | 1993-07-06 |
| 5205837 | Product based on inorganic or organic lamellar particles, containing a melanotic pigment, process for preparing it and its use in cosmetics | Herve Andrean | 1993-04-27 |
| 5203875 | Dyeing composition for keratinous fibers, containing oxidation dye precursors and hydroxybenzofurane used as couplers, and dyeing process using these compositions | Remy Tuloup, Christian Blaise | 1993-04-20 |
| 5202487 | 2-substituted para-aminophenols and their use for dyeing keratinous fibres | Gerard Lang, Alain Genet | 1993-04-13 |
| 5192332 | Cosmetic temporary coloring compositions containing protein derivatives | Gerard Lang, Serge Forestier, Gerard Malle | 1993-03-09 |
| 5186717 | Dyeing compositions for keratin fibres, based on 3-nitro-ortho-phenylenediamines, and certain 3-nitro-ortho-phenylenediamines used therein | Andree Bugaut, Jean-Jacques Vandenboosche | 1993-02-16 |
| 5180400 | Method for dyeing keratinous fibres using an aminoindole in combination with a quinone derivative | Alain Baudry, Herve Richard | 1993-01-19 |
| 5178637 | Tinctorial composition based on 5,6-dihydroxyindolines and method for dyeing keratinous fibres | Alain Lagrange, Bernadette Luppi | 1993-01-12 |
| 5145483 | Substituted ortho-aminophenols, process for preparing them and their use for the oxidatin dyeing of keratinous fibres | Herve Andrean, Gerard Lang | 1992-09-08 |
| 5131911 | Use of indole derivative for dyeing keratin materials, tinctorial compositions, new compounds and dyeing process | Gerard Lang, Serge Forestier, Herve Richard, Jean Jacques Van den Bossche | 1992-07-21 |
| 5132106 | Halogenated pyrimidine 3-oxide derivatives, their use for the treatment and prevention of hair loss and for stimulating its regrowth | Remy Tuloup, Michel Hocquaux, Jacqueline Dumats, Quintino Gaetani | 1992-07-21 |
| 5114429 | Aliphatic alpha, omega-diamine compounds and their use in hair dyeing | Alain Genet, Gerard Lang | 1992-05-19 |
| 5085666 | Nitroanilines and hair-dyeing compositions in which they are present | Andree Bugaut | 1992-02-04 |
| 5085860 | Reducing composition for the permanent deformation of hair containing as a reducing agent, an amino mercaptoalkylamide or a salt thereof | Gerard Malle | 1992-02-04 |
| 5084067 | 3-substituted para-amino phenols and their use as oxidation dye precursors in compositions for dyeing kerafinous fibers | Alain Genet, Gerard Lang | 1992-01-28 |
| 5073174 | Dyeing process employing indole dyes and oxidation dye precursors and dyeing agents employed | Charles Vayssie, Daniel Bauer, Francoise Richard | 1991-12-17 |
| 5053052 | 2-substituted para-aminophenols and their use for dyeing keratinous fibres | Gerard Lang, Alain Genet | 1991-10-01 |
| 5041143 | N,N'-disubstituted nitro-para-phenylenediamines, and dyeing compositions containing the same | Gerard Lang | 1991-08-20 |
| 5034015 | Process for dyeing keratin fibres with a monohydroxyindole associated with an iodide and hydrogen peroxide | Gerard Lang, Jean J. Vandenbossche | 1991-07-23 |
| 5032137 | P-phenylenediamines, process for preparation thereof, dyeing compositions containing them and corresponding dyeing process | Alain Genet, Gerard Lang | 1991-07-16 |
| 5015769 | 3-amino-4-nitrophenols, the process for preparation thereof and their use in dyeing keratinous fibers, and new intermediate 4,5-dinitrophenols | Gerard Lang, Alain Genet | 1991-05-14 |
| 5015772 | Meta-phenylenediamines, process for preparation thereof, intermediate compounds and use of these meta-phenylenediamines as couplers for the oxidation dyeing of keratinous fibres and especially human hair | Jean J. Vandenbossche, Herve Borowiak, Gerard Lang | 1991-05-14 |
| 5002585 | Trialkoxy-substituted meta-phenylenediamines, a process for their preparation, and their use as couplers for the oxidation dyeing of keratinous fibres and in particular of human hair | Jean J. Vandenbossche, Herve Borowiak, Gerard Lang | 1991-03-26 |
| 4992586 | Process for preparing 2-nitro-meta-phenylenediamines | Gerard Lang, Nicole Jehanno, Jean J. Vandenbosche | 1991-02-12 |
| 4985042 | New substituted metaaminophenols, a process for their preparation, hair-dyeing compositions containing them and a hair-dyeing process | Andree Bugaut | 1991-01-15 |