Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5578735 | Process for the preparation of indole compounds from N-protected indolines | Jean J. Vandenbossche, Alain Lagrange | 1996-11-26 |
| 5468472 | Topical process for lightening the skin or treating pigmental blemishes using a composition containing 4-thioresorcin derivatives | Alain Lagrange | 1995-11-21 |
| 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 | Alex Junino, Jean J. Vandenbossche, Gerard Lang | 1993-07-06 |
| 5026401 | Dyeing compositions for kerating fibres based on nitroanilines and nitroanilines for use therein | Andree Bugaut | 1991-06-25 |
| 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 | Alex Junino, Jean J. Vandenbossche, 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 | Alex Junino, Jean J. Vandenbossche, Gerard Lang | 1991-03-26 |
| 4960432 | 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 | Alex Junino, Jean J. Vandenbossche, Gerard Lang | 1990-10-02 |
| 4891045 | 2,4-Diamino-1,3,5-trimethoxybenzene, process for its preparation and its use as a coupler in oxidation dyes for keratinous fibres | Alex Junino, Jean J. Vandenbossche, Gerard Lang | 1990-01-02 |
| 4865618 | New 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 | Alex Junino, Jean J. Vandenbossche, Gerard Lang | 1989-09-12 |
| 4865619 | Use, as a coupler, of 2,4-diamino-1,3-dimethoxybenzene or one of its salts, in combination with oxidation dye precursors, for dyeing human hair, hair dyeing composition containing the said coupler and process for preparing the said coupler | Alex Junino, Jean J. Vandenbossche, Gerard Lang | 1989-09-12 |