Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10328001 | Combinations of preservatives for hair dyes | Gabriele Weser, Rainer Simmering | 2019-06-25 |
| 9999582 | Combinations of preservatives for hair colors | Gabriele Weser, Rainer Simmering | 2018-06-19 |
| 8349026 | Mousse-type dyes II | Sabrina Zirwen, Astrid Kleeb | 2013-01-08 |
| 8110010 | Coated coloring agents | Carolin Welz, Hartmut Manneck, Astrid Kleen | 2012-02-07 |
| 7553338 | Color-modifying compositions containing a moringa plant seed protein and methods of treating keratin fibers therewith | Gabriele Weser, Elisabeth Poppe, Astrid Kleen, Wolfgang Wolff | 2009-06-30 |
| 7294153 | Caring oxidation coloring agent in a tube | Astrid Kleen, Stefan Hoepfner, Hartmut Manneck | 2007-11-13 |
| 7255718 | Phosphate-type tensides combined with hair conditioning agents in hair coloring compositions | Wolfgang Wolff, Sandra Rohweder | 2007-08-14 |
| 7247173 | Tinting agent in tubes | Astrid Kleen, Susanne Bietz, Stefan Hoepfner, Hartmut Manneck, Maureen Rippe | 2007-07-24 |
| 7244277 | Oxidation colorant in a tube | Astrid Kleen, Stefan Hoepfner, Hartmut Manneck | 2007-07-17 |
| 7179303 | Active ingredient combinations for hair-dyeing agents | Hiroshi Tanaka, Wolfgang Wolff | 2007-02-20 |
| 6916343 | Method for coloring hair | Rolf-Werner Haubold | 2005-07-12 |
| 6139853 | Hair colorants and an application mixture for coloring human hair | Wolfgang Wolff, Sandra Rohweder, Stephan Schwartz | 2000-10-31 |
| 6129770 | Hair dye agents with at least one conditioner | Herbert Deutz, Astrid Kleen | 2000-10-10 |
| 5990355 | Substituted diaminophenols, process for their preparation, and hair dyes containing such compounds | Wolfgang Wolff, Andreas Bittner, Uwe Kobs | 1999-11-23 |
| 5961668 | 4-(2,4-diaminophenoxymethyl)-1,3-dioxolane secondary intermediates, processes for their production, and hair colorants | Wolfgang Bauer, Andreas Bittner, Astrid Kleen | 1999-10-05 |
| 5922086 | Hair colorants based on perimidine derivatives | Wolfgang Bauer, Herbert Deutz | 1999-07-13 |
| 5676706 | Substituted diaminophenols, and hair dyes containing such compounds | Wolfgang Wolff, Andreas Bittner, Uwe Kobs | 1997-10-14 |
| 5613985 | Hair coloring compositions which contain developers and perimidine couplers | Wolfgang Bauer | 1997-03-25 |
| 5494489 | Aqueous colorants for keratin fibers | Wolfgang Wolff | 1996-02-27 |
| 5230710 | Substituted 2,6-diaminotoluenes, processes for their preparation and coloring agents for keratinic fibers comprising these compounds | Winfried Seidel, Wolfgang Schlenther | 1993-07-27 |
| 5163970 | Nitro-p-phenylenediamine derivatives, processes for their preparation and coloring agents containing these for use on keratin fibres | Winfried Seidel | 1992-11-17 |
| 5078748 | Substituted 1,3-diaminobenzenes, processes for their preparation and coloring agents, containing these, for keratin fibers | Wolfgang Schlenther | 1992-01-07 |
| 5067967 | Nitro-p-phenylenediamine derivatives, processes for their preparation and coloring agents containing these for use on keratin fibres | Winfried Seidel | 1991-11-26 |