Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7413579 | Method for dyeing fibers containing keratin | Martina Seiler | 2008-08-19 |
| 6878170 | 5,6-Dihydroxyindolines as additives for hair dyeing preparations | Iduna Matzik, Mechthild Borgerding | 2005-04-12 |
| 6858216 | Cosmetic agent containing 2-furanone derivatives | Erik Schulze zur Wiesche, Britta Bossmann | 2005-02-22 |
| 6828443 | Dyes and colorants | Horst Hoeffkes, Frank Naumann, David Rose, Leszek J. Wolfram, Joachim-Kurt Foitzik | 2004-12-07 |
| 6797012 | Solid colorant for keratin fibers | Erik Schulze zur Wiesche, Michael Dreja | 2004-09-28 |
| 6790240 | Solid colorant for keratin fibers | Erik Schulze zur Wiesche, Britta Bossmann, Michael Dreja | 2004-09-14 |
| 6736862 | Indole/indoline based hybrid dyes and indole/indoline based hybrid dye intermediate products | Frank Naumann, Horst Hoeffkes, David Rose | 2004-05-18 |
| 6688314 | Application device for highlighting hair | Horst Hoeffkes, Hans Schneider, Peter Solich | 2004-02-10 |
| 6673123 | Solid colorant for keratin fibers | Erik Schulze zur Wiesche, Michael Dreja | 2004-01-06 |
| 6672143 | Process for determining the degeneration level of keratinic fibers | Erik Schulze zur Wiesche, Claudia Brockmann | 2004-01-06 |
| 6620409 | Hair and skin care agents | Britta Bossmann, Ullrich Bernecker | 2003-09-16 |
| 6569211 | 5,6-dihydroxyindolines as additives for hair dyeing preparations | Iduna Matzik, Mechthild Borgerding | 2003-05-27 |
| 6569414 | Hair conditioners for treating split ends | Ullrich Bernecker, Claudia Brockmann | 2003-05-27 |
| 6406501 | Oxidation colorants | Horst Hoeffkes, Reinhard Mueller, David Rose | 2002-06-18 |
| 6364913 | Agent and process for dyeing and tinting keratinous fibres | Brigitta Hurschmann | 2002-04-02 |
| 6172018 | Mild cleaning preparations | Reinhard Mueller, Kurt Seidel, Anja Patten | 2001-01-09 |
| 6045779 | Skin and hair aerosol foam preparations containing an alkyl polyglycoside and vegetable oil | Reinhard Mueller, Kurt Seidel, Anke Kaczich, Iduna Matzik | 2000-04-04 |
| 5830483 | Emulsions | Kurt Seidel, Christian Priebe | 1998-11-03 |
| 5811386 | Clear surface-active mixtures containing anionic surfactant, APG, and temporarily cationic copolymer | Reinhard Mueller, Kurt Seidel, Manuela Ehlert | 1998-09-22 |
| 5716418 | Coloring of keratin-containing fibers with preparations which contain alkyl glycosides and oxidation dye precursors | Iduna Matzik, Horst Hoeffkes, Reinhard Mueller, Manuela Ehlert, Christa Schramm | 1998-02-10 |
| 5631003 | Hair treatment prepartation | Reinhard Mueller, Kurt Seidel | 1997-05-20 |
| 5612024 | Cosmetic preparations for the hair | Karl Giede, Kurt Seidel, Reinhard Mueller | 1997-03-18 |
| 5035251 | Hair treatment media application device | Hans Schneider, Georg Weihrauch | 1991-07-30 |
| 5020552 | Expandable hair curler | Hans Schneider, Georg Weihrauch | 1991-06-04 |
| 4900545 | Hair split-end regeneration composition | Klaus-Dieter Wisotzki, Horst Hoeffkes | 1990-02-13 |