Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34877 | Azo dyes for thermotransfer printing | Volker Bach, Karl-Heinz Etzbach, Gunther Lamm, Helmut Reichelt, Ruediger Sens | 1995-03-14 |
| 5260446 | Aminothiazoles | Matthias Wiesenfeldt, Karl-Heinz Etzbach, Helmut Reichelt | 1993-11-09 |
| 5200386 | Azo dyes for thermotransfer printing | Ruediger Sens, Helmut Reichelt, Karl-Heinz Etzbach, Gunther Lamm | 1993-04-06 |
| 5158928 | Azo dyes for thermotransfer printing | Volker Bach, Karl-Heinz Etzbach, Gunther Lamm, Helmut Reichelt, Ruediger Sens | 1992-10-27 |