Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980459 | Process for the manufacture of formulations of water-insoluble azo dyes | Beat Bruttel | 1990-12-25 |
| 4865744 | Process for the continuous workup of aqueous crude dye suspensions | Christiane Hartling | 1989-09-12 |
| 4689048 | Process for the preparation of formulations of water-soluble organic dyes by two-stage membrane separation of crude dye suspension | Bruno Fortsch, Beat Bruttel | 1987-08-25 |