Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12121133 | Method for determining a greyness level of a strand of hair | Hans Georg Knuebel, Lucile Bonnin | 2024-10-22 |
| 11857332 | Determination of a degree of elongation of hair using a NIR sensor | Hans Georg Knuebel, Lucile Bonnin, Annika Koenen, Erik Schulze zur Wiesche | 2024-01-02 |
| 11534106 | Method for determining a user-specific hair treatment | Georg Knuebel, Antje Gebert-Schwarzwaelder | 2022-12-27 |
| 11202742 | Product for lightening hair, containing special oxo-carboxylic acids | Antje Gebert-Schwarzwaelder, Annika Koenen | 2021-12-21 |
| 10955344 | Method and device for determining a degree of damage to hair | Georg Knuebel, Antje Gebert-Schwarzwaelder, Annika Koenen, Melanie Moch, Wilfried Howorka | 2021-03-23 |
| 10821063 | Method for decolorizing dyed keratinic fibers | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2020-11-03 |
| 10617618 | Agent for oxidative dyeing of hair containing anisole derivatives | Antje Gebert-Schwarzwaelder, Ralph Nemitz, Annika Koenen | 2020-04-14 |
| 10561594 | Agent for stabilizing keratin fibers with 5-ring heterocycles | Antje Gebert-Schwarzwaelder, Ralph Nemitz | 2020-02-18 |
| 10413498 | Agents for dyeing keratin fibers, containing at least one dimeric, dicationic azo dye and at least one anionic and/or cationic surfactant | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2019-09-17 |
| 10406089 | Agents for dyeing keratin fibres, containing at least one dimeric, dicationic azo dye with special substitution pattern | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2019-09-10 |
| 10251826 | Alkaline agent for lightening hair containing oxidants and special carboxylic acid esters | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2019-04-09 |
| 9827180 | Agents for oxidatively dyeing hair, containing specific combinations of developers and couplers | Antje Gebert-Schwarzwaelder | 2017-11-28 |
| 9707168 | Means for the oxidative dyeing of hair containing specific combinations of developers and couplers | Antje Gebert-Schwarzwaelder | 2017-07-18 |
| 9259380 | Means for dyeing and/or matting keratinic fibres containing novel 1,4 diaminoanthraquinone dyes | Antje Gebert, Ralph Nemitz | 2016-02-16 |
| 8864849 | Anionic azo dyestuffs for coloring keratin-containing fibers | Wibke Gross, Ralph Nemitz, Melanie Moch, Antje Gebert | 2014-10-21 |
| 8821592 | Oxidation dye precursors | Wibke Gross, Ralph Nemitz | 2014-09-02 |
| 8668745 | Brightening agent comprising acylpyridinium compounds and defined alkalizing agents | Wibke Gross, Ralph Nemitz, Frank Janssen, Astrid Kleen, Hartmut Manneck +1 more | 2014-03-11 |
| 8597371 | Lightening agent comprising acyl pyridinium compounds and cationic polysaccharides | Wibke Gross, Ralph Nemitz, 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 | Wibke Gross, Helmut Giesa | 2013-10-08 |
| 8349023 | After treatment for color fixation | Wibke Gross, Georg Knuebel, Ralph Nemitz | 2013-01-08 |
| 8328879 | Phthalimides as bleach activators | Wibke Gross, Ralph Nemitz | 2012-12-11 |
| 8323356 | Sulfonimines as bleaching activators | Wibke Gross, Ralph Nemitz, Katja Guenther | 2012-12-04 |
| 8277517 | Lightening agent having cationic acylpyridinium derivatives and certain amino acids | Wibke Gross, Ralph Nemitz, Georg Knuebel | 2012-10-02 |
| 8277516 | Lightening agent having cationic acylpyridinium derivatives and certain ammonium compounds | Wibke Gross, Ralph Nemitz, Georg Knuebel | 2012-10-02 |