Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328220 | Non-dusty pulverulent and granulated organic dye preparations | Heinz Abel, Beat Bruttel | 1982-05-04 |
| 4322415 | Stable concentrated liquid preparations of metal complex dyes | Heinz Abel, Paul Hugelshofer | 1982-03-30 |
| 4318849 | Novel metallized dyes, their manufacture and use | Hans U. Schutz | 1982-03-09 |