Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8740995 | Oxidative hair treatment with silicone and bleach | Mathias Schweinsberg, Jisook Baek, Astrid Kleen | 2014-06-03 |
| 8273332 | Hair care product containing acetylpyridinium salts | Wibke Gross, Georg Knuebel, Thomas Mucha | 2012-09-25 |
| 7204856 | Shaped bodies for forming cosmetic preparations | Britta Bossmann, Michael Dreja | 2007-04-17 |
| 6858216 | Cosmetic agent containing 2-furanone derivatives | Detlef Hollenberg, Britta Bossmann | 2005-02-22 |
| 6797012 | Solid colorant for keratin fibers | Detlef Hollenberg, Michael Dreja | 2004-09-28 |
| 6790240 | Solid colorant for keratin fibers | Britta Bossmann, Detlef Hollenberg, Michael Dreja | 2004-09-14 |
| 6673123 | Solid colorant for keratin fibers | Detlef Hollenberg, Michael Dreja | 2004-01-06 |
| 6672143 | Process for determining the degeneration level of keratinic fibers | Claudia Brockmann, Detlef Hollenberg | 2004-01-06 |