Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7517367 | Cationic naphthyldiazo dyes and keratin fibers-coloring agents containing these dyes | Otto Goettel, Hans-Juergen Braun | 2009-04-14 |
| 7462204 | Cationic diaminopyrazoles, a process for producing them and colorants containing these compounds | Otto Goettel, Emmanuel Morand | 2008-12-09 |
| 7455697 | (3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof, method for their preparation and use of these compounds for dyeing fibers | Otto Goettel, Hans-Juergen Braun | 2008-11-25 |
| 7361198 | M-diaminobenzenes, their acid adducts and the use thereof in colorants | Otto Goettel, Emmanuel Morand | 2008-04-22 |
| 7214248 | Multi-component kit and method for temporarily dyeing and later decolorizing hair | Manuela Javet, Catherine Mueller, Sylviane Oberson, Gisela Umbricht, Hans-Juergen Braun +1 more | 2007-05-08 |
| 6716257 | Bridged diaminopyrazole compounds and dye compositions containing same | Otto Goettel, Aline Pirrello, Emmanuel Morand | 2004-04-06 |
| 6648923 | Compositions containing 1,4-diamino-2-methoxymethylbenzene and salts thereof and methods for dyeing keratin fibers with same | Otto Goettel, Aline Pirrello, Hans-Juergen Braun | 2003-11-18 |
| 6558433 | Process for dyeing keratin fibers comprising 1,4-diamino-2-methoxymethylbenzene and salts thereof | Otto Goettel, Aline Pirrello, Hans-Juergen Braun | 2003-05-06 |
| 6461390 | Process for making 2-aminomethyl-1, 4-diaminobenzene and its salts and compositions and methods for dyeing keratin fibers using same | Otto Goettel, Aline Pirrello | 2002-10-08 |