Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |