Issued Patents 2002
Showing 1–2 of 2 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 |