Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420308 | Process for the production of reserve effects on polyester textiles and polyester/cellulose mixed fibre textiles: discharge printing with disperse azo dye with alkyl or alkoxy carbonyl, cyand and hydroxy phenyl group | Ulrich Buhler, Klaus Kuhlein, Maria Kallay, Uwe Kosubek, Rudolf Lowenfeld +1 more | 1983-12-13 |
| 4349348 | Process for printing synthetic, hydrophobic fiber material | Horst Tappe, Kurt Roth, Hans-Jurgen Weyer | 1982-09-14 |
| 4322213 | Process for the production of reserve effects on polyestercellulose mixed fiber textiles | Horst Tappe, Kurt Roth, Sien L. Ong | 1982-03-30 |
| 4247456 | Water-insoluble monoazo pyridone dye | Hanswilli von Brachel, Ernst Heinrich, Otto Grawinger, Karl Hintermeier | 1981-01-27 |