Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992586 | Process for preparing 2-nitro-meta-phenylenediamines | Alex Junino, Gerard Lang, Jean J. Vandenbosche | 1991-02-12 |
| 4888445 | New 2,4-dinitro- or 2-amino-4-nitro- or 2-nitro-4-amino-6-hydroxyalkylanilines, the process for preparation thereof and their use in dyeing keratinous fibres, and especially human hair | Alex Junino, Gerard Lang | 1989-12-19 |
| 4863482 | Substituted 2-nitro metaphenylenediamines, a process for their preparation and their use in dyeing keratinous fibers, in particular human hair | Alex Junino, Gerard Lang | 1989-09-05 |
| 4845293 | Dyeing composition containing halogenated 2-nitroanilines | Alex Junino, Gerard Lang, Jean J. Vandenbosche | 1989-07-04 |
| 4797129 | Dye compositions for keratinous fibres containing 2-nitro-metaphenylenediamines | Alex Junino, Gerard Lang, Jean J. Vandenbosche | 1989-01-10 |
| 4727192 | 2,4-dinitro- or 2-amino-4-nitro- or 2-nitro-4-amino-6-hydroxyalkylanilines, the process for preparation thereof and their use in dyeing keratinous fibers, and especially human hair | Alex Junino, Gerard Lang | 1988-02-23 |