Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6716257 | Bridged diaminopyrazole compounds and dye compositions containing same | Otto Goettel, Andre Hayoz, 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, Andre Hayoz, Hans-Juergen Braun | 2003-11-18 |
| 6558433 | Process for dyeing keratin fibers comprising 1,4-diamino-2-methoxymethylbenzene and salts thereof | Otto Goettel, Andre Hayoz, Hans-Juergen Braun | 2003-05-06 |
| 6494923 | Agents and method for producing temporary colorations of keratin fibers | Otto Goettel, Sandra Mettler | 2002-12-17 |
| 6461390 | Process for making 2-aminomethyl-1, 4-diaminobenzene and its salts and compositions and methods for dyeing keratin fibers using same | Otto Goettel, Andre Hayoz | 2002-10-08 |
| 6361571 | Agents and method for producing semi-permanent colorations of keratin fibers | Otto Goettel | 2002-03-26 |
| 6312478 | Colorant and method for producing temporary hair colors | Otto Goettel | 2001-11-06 |