Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323670 | Anthraquinone-azomethine compounds, processes for their preparation and processes for pigmenting organic macromolecular substances | Rutger Neeff, Walter Muller | 1982-04-06 |
| 4323671 | Anthraquinone derivatives, processes for their preparation, processes for pigmenting organic macromolecular substances, and pigmented organic macromolecular material | Rutger Neeff, Walter Muller | 1982-04-06 |
| 4319025 | Anthraquinone-azomethine compounds, processes for their preparation and processes for dyeing synthetic fibre materials and for pigmenting organic macromolecular substances | Rutger Neeff, Walter Muller | 1982-03-09 |
| 4309221 | Anthraquinone derivatives | Rutger Neeff, Walter Muller | 1982-01-05 |