Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406501 | Oxidation colorants | Detlef Hollenberg, Reinhard Mueller, David Rose | 2002-06-18 |
| 6371993 | Utilization of onium aldehydes and onium ketones for dying fibers containing keratin | Hinrich Moeller | 2002-04-16 |
| 6284003 | Oxidation colorants comprising 2-(2,5-diaminophenyl)-ethanol compounds and 2-chloro-6-methyl-3-aminophenol compounds | David Rose, Bernd Meinigke | 2001-09-04 |
| 6203579 | Use of 1-substituted isatins to dye fibers containing keratin | Hinrich Moeller, Bernd Meinigke, David Rose | 2001-03-20 |
| 6165230 | 1,4-diazacycloheptane derivatives and their use in hair oxidation dyes | David Rose, Bernd Meinigke | 2000-12-26 |
| 6090161 | Colorants for keratin fibers comprising a 5,6-dihydroxyindoline derivative and a secondary intermediate | Dieter Schrader, Hiroshi Tanaka | 2000-07-18 |
| 5752984 | Use of 1,2,3,4-tetrahydroquinoxalines as oxidation dye precursors in oxidative coloring formulations | Georg Knuebel, David Rose, Bernd Meinigke | 1998-05-19 |
| 5743919 | Isatin derivatives for coloring keratin-containing fibers | Hinrich Moeller | 1998-04-28 |
| 5716418 | Coloring of keratin-containing fibers with preparations which contain alkyl glycosides and oxidation dye precursors | Iduna Matzik, Detlef Hollenberg, Reinhard Mueller, Manuela Ehlert, Christa Schramm | 1998-02-10 |
| 5685881 | Aromatic allylaminonitro compounds, hair dye compositions containing aromatic allylaminonitio compounds, and synthetic and natural fiber dyeing process | David Rose, Edgar Lieske, Iduna Matzik | 1997-11-11 |
| 5651793 | Hydrogen peroxide preparations containing foam regulators | Winifried Neuhaus, Karin Nelles | 1997-07-29 |
| 5616150 | Isatin-containing formulations for coloring keratin-containing fibers | Hinrich Moeller | 1997-04-01 |
| 5611817 | Isatin derivatives for coloring keratin-containing fibers | Hinrich Moeller | 1997-03-18 |
| 5609650 | Dyeing of keratin fibres with indolines using metal salts as catalysts | Georg Knuebel, Winifried Neuhaus, Edgar Lieske | 1997-03-11 |
| 5291905 | Hair treatment applicator | Peter Busch, Klaus Thiele | 1994-03-08 |
| 5246466 | Oxidation dyes | David Rose, Edgar Lieske | 1993-09-21 |
| 5114428 | Hair dye preparation | Fritz Lange, Dieter Schrader | 1992-05-19 |
| 5104412 | Hair dyeing compositions | David Rose, Edgar Lieske | 1992-04-14 |
| 5089025 | Hair dye compositions and certain 1,2,3,4-tetrahydronitroquinoxalines useful therein | David Rose, Edgar Lieske | 1992-02-18 |
| 5017305 | Free-flowing pearlescent concentrate | Anke Kaczich | 1991-05-21 |
| 5002761 | Hair treatment compositions containing natural ingredients | Reinhard Mueller, Kurt Seidel, Klaus-Dieter Wisotzki | 1991-03-26 |
| 4948528 | Free-flowing pearlescent concentrate | Anke Kaczich | 1990-08-14 |
| 4919923 | Cosmetic emulsions having improved flow behavior | Fritz Lange, Achim Ansmann | 1990-04-24 |
| 4900545 | Hair split-end regeneration composition | Klaus-Dieter Wisotzki, Detlef Hollenberg | 1990-02-13 |
| 4900325 | Hair-dyeing preparations | David Rose, Edgar Lieske, Norbert Maak | 1990-02-13 |