Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9364407 | Hair dye agent comprising aminopyrimidine derivatives | Helmut Giesa, Annika Koenen | 2016-06-14 |
| 9259380 | Means for dyeing and/or matting keratinic fibres containing novel 1,4 diaminoanthraquinone dyes | Astrid Kroos, Ralph Nemitz | 2016-02-16 |
| 9132073 | Oxidation dye precursors | Annika Koenen | 2015-09-15 |
| 8864849 | Anionic azo dyestuffs for coloring keratin-containing fibers | Wibke Gross, Ralph Nemitz, Melanie Moch, Astrid Kroos | 2014-10-21 |
| 8814952 | Gentle hair dye | Matthias Schweinsberg, Jisook Baek, Astrid Kleen, Erik Schulze zur Wiesche, Monika Nebel | 2014-08-26 |
| 8784507 | Post oxidative hair treatment agent with silicone | Matthias Schweinsberg, Jisook Baek, Astrid Kleen, Erik Schulze zur Wiesche, Monika Nebel | 2014-07-22 |