Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5152801 | Process for dyeing leather with an aqueous bath containing sulfonated carbon black and black anionic dye | Alois Puntener, Peter Moser, Ernst Tempel | 1992-10-06 |
| 4845220 | Vattable 2-aryl-4,6-diaminopyrimidines | — | 1989-07-04 |
| 4772725 | Anthrimidecarbazole compound having thenoylamino groups | — | 1988-09-20 |
| 4211688 | Process for dyeing high-molecular organic material in the melt | Arnold Wick | 1980-07-08 |