Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12337053 | Method and composition for coloring a keratinous substrate using solubilized vat dyes | Sonja Telser, Ingo Weber, Petra Braun | 2025-06-24 |
| 12122734 | Telescoping syntheses of 2-methoxymethyl-p-phenylenediamine | Armin Osan, Heike Gertrud Abel, Gerd Schlotzhauer | 2024-10-22 |
| 11904042 | Hair coloring composition and methods for its application and removal | Ingo Weber, Petra Braun, Malte Afflerbach, Corinne Mohr, Simon Paul Godfrey +6 more | 2024-02-20 |
| 10973754 | Dual polymer component hair coloring composition | Mathias Kurt Herrlein, Matija Crne, Simon Paul Godfrey, Graham Neil McKelvey, Lars Siegfried Dahne +2 more | 2021-04-13 |
| 10959919 | Hair treatment method and kit thereof | Lars Siegfried Dahne, Mathias Kurt Herrlein, Ingo Weber, Mandy Hecht, Simon Paul Godfrey | 2021-03-30 |
| 9758469 | Process for the preparation of 2-substituted-1,4-benzenediamines and salts thereof | Garry Steven Garrett, Heike Gertrud Abel, Armin Osan, John Michael Gardlik, Bryan Patrick Murphy +1 more | 2017-09-12 |
| 9695109 | Telescoping synthesis of 2-methoxymethyl-p-phenylenediamine | Heike Gertrud Abel, Armin Osan, Ingo Weber, Garry Steven Garrett | 2017-07-04 |
| 9688609 | Telescoping synthesis of 2-methoxymethyl-P-phenylenediamine | Heike Gertrud Abel, Armin Osan, Garry Steven Garrett, John Michael Gardlik, Bryan Patrick Murphy +1 more | 2017-06-27 |
| 9587116 | Azo direct dyes and method for dyeing hair using these dyes | Heike Gertrud Abel, Armin Osan, Ingo Weber | 2017-03-07 |
| 9060953 | 1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions | Wolfram Geibel, Ingo Weber, Armin Osan | 2015-06-23 |
| 8784505 | 1-hexzl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions | Wolfram Geibel, Ingo Weber, Armin Osan | 2014-07-22 |
| 8785656 | Telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt | Wolfram Geibel, Ingo Weber, Armin Osan | 2014-07-22 |
| 8152861 | Dark coloured azo dyes | Jessica Chassot, Hans-Jurgen Braun | 2012-04-10 |
| 7977482 | Dark coloured azo dyes | Jessica Chassot, Hans-Jurgen Braun | 2011-07-12 |
| 7658770 | Agents for coloring keratin fibers | Cecile Pasquier, Eric Tinguely, Annik Marguet, Hans-Jurgen Braun | 2010-02-09 |
| 7658771 | Coloring agents for keratin fibers | Cecile Pasquier, Eric Tinguely, Annik Marguet, Hans-Jurgen Braun | 2010-02-09 |
| 7553336 | Brightening direct dyes for keratin fibers and colorants containing these compounds | Hans-Juergen Braun | 2009-06-30 |
| 7544215 | Neutral and cationic naphthalene and colorants for keratin fibers containing these compounds | Hans-Juergen Braun, Jessica Chassot | 2009-06-09 |
| 7534273 | Cationic pyrazolone dyes, method for production thereof and coloring agents for keratin fibers containing said compounds | Hans-Juergen Braun | 2009-05-19 |
| 7513916 | Agents for coloring keratin fibers | Cecile Pasquier, Eric Tinguely, Annik Marguet, Hans-Jurgen Braun | 2009-04-07 |
| 7513917 | Coloring agents for keratin fibers | Cecile Pasquier, Eric Tinguely, Annik Marguet, Hans-Jurgen Braun | 2009-04-07 |
| 7500994 | Cationic quinoxaline thiazole azo dye-containing colorants | Hans-Juergen Braun | 2009-03-10 |
| 7488353 | Cationic heteroarylazine dyes and colorants containing these compounds | Hans-Juergen Braun | 2009-02-10 |
| 7473281 | Colorants containing cationic indazoline thiazolazo dye | Hans-Jurgen Braun | 2009-01-06 |
| 7452385 | Naphthalene derivatives and colorants for keratin fibers containing these compounds | Hans-Juergen Braun | 2008-11-18 |