Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8864848 | Zwitterionic azo dyestuffs for coloring keratin-including fibres | Ralph Nemitz, Melanie Moch | 2014-10-21 |
| 8864849 | Anionic azo dyestuffs for coloring keratin-containing fibers | Ralph Nemitz, Melanie Moch, Astrid Kroos, Antje Gebert | 2014-10-21 |
| 8821592 | Oxidation dye precursors | Ralph Nemitz, Astrid Kroos | 2014-09-02 |
| 8668745 | Brightening agent comprising acylpyridinium compounds and defined alkalizing agents | Ralph Nemitz, Astrid Kroos, Frank Janssen, Astrid Kleen, Hartmut Manneck +1 more | 2014-03-11 |
| 8597371 | Lightening agent comprising acyl pyridinium compounds and cationic polysaccharides | Ralph Nemitz, Astrid Kroos, Frank Janssen, Astrid Kleen, Hartmut Manneck +1 more | 2013-12-03 |
| 8551191 | Dicationic 4-aza-1-azoniabicyclo[2.2.2]octanes and agents for colouring keratin-containing fibers | Helmut Giesa, Astrid Kroos | 2013-10-08 |
| 8349023 | After treatment for color fixation | Georg Knuebel, Astrid Kroos, Ralph Nemitz | 2013-01-08 |
| 8328879 | Phthalimides as bleach activators | Ralph Nemitz, Astrid Kroos | 2012-12-11 |
| 8323356 | Sulfonimines as bleaching activators | Ralph Nemitz, Astrid Kroos, Katja Guenther | 2012-12-04 |
| 8277517 | Lightening agent having cationic acylpyridinium derivatives and certain amino acids | Ralph Nemitz, Astrid Kroos, Georg Knuebel | 2012-10-02 |
| 8277516 | Lightening agent having cationic acylpyridinium derivatives and certain ammonium compounds | Ralph Nemitz, Astrid Kroos, Georg Knuebel | 2012-10-02 |
| 8273332 | Hair care product containing acetylpyridinium salts | Georg Knuebel, Thomas Mucha, Erik Schulze zur Wiesche | 2012-09-25 |
| 8268015 | Method for decolorizing keratin-containing fibers | Doris Oberkobusch, Laura Stephan | 2012-09-18 |
| 8246938 | Hair care agent containing acetylpyridinium salts | Georg Knuebel, Thomas Mucha, Erik Schulze zur Wiesche | 2012-08-21 |
| 8137412 | Bleaching with concomitant hair tonicizing | Georg Suenger | 2012-03-20 |
| 8034122 | Bleaching agent comprising 2-acylpyridinium derivatives | Denise Fuhr, Ralph Nemitz | 2011-10-11 |
| 8021438 | Cationic acylpyridinium derivatives for use as bleach activators | Denise Fuhr, Ralph Nemitz, Astrid Kleen | 2011-09-20 |
| 7981166 | Bleaching agent having cationic acyl pyridinium derivatives, co-bleaching activators and hydrogen peroxide | Denise Fuhr, Ralph Nemitz, Kristin Mielich | 2011-07-19 |
| 7799096 | Agent for dyeing keratin-containing fibers | Doris Oberkobusch, Ralph Nemitz | 2010-09-21 |
| 7678156 | Compositions for treating keratinic fibers, methods of treating such fibers therewith and compounds contained therein | Sandra Mausberg, Doris Oberkobusch, Horst Hoffkes | 2010-03-16 |
| 7473280 | Coloring agent compositions and methods of treating keratin fibers therewith | Sandra Mausberg, Doris Oberkobusch, Horst Hoffkes | 2009-01-06 |
| 7393367 | Agent for dyeing keratin-based fibers | Horst Hoffkes, Doris Oberkobusch, Helmut Muller, Carsten Brake | 2008-07-01 |
| 7300472 | Agents for coloring fibers containing keratin | Horst Hoffkes, Doris Oberkobusch, Sandra Mausberg | 2007-11-27 |
| 7105032 | Agents used for dyeing keratinous fibers | Sandra Mausberg, Horst Hoeffkes, Doris Oberkobusch | 2006-09-12 |