Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648923 | Compositions containing 1,4-diamino-2-methoxymethylbenzene and salts thereof and methods for dyeing keratin fibers with same | Otto Goettel, Andre Hayoz, Hans-Juergen Braun | 2003-11-18 |
| 6558433 | Process for dyeing keratin fibers comprising 1,4-diamino-2-methoxymethylbenzene and salts thereof | Otto Goettel, Andre Hayoz, Hans-Juergen Braun | 2003-05-06 |