Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464768 | Water-soluble stilbene dyes, their preparation and use | Wolfgang Bauer, Heidemarie Menzel, Josef Geisenberger | 2002-10-15 |
| 6432185 | Red acid dyes for injet printing and paper dyeing | Wolfgang Bauer, Josef Geisenberger, Heidemarie Menzel | 2002-08-13 |
| 6406527 | Water-soluble red acid dyes, their preparation and use | Wolfgang Bauer, Josef Geisenberger, Heidemarie Menzel | 2002-06-18 |