Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5484460 | Dye mixtures containing azo dyes having a coupling component from the diaminopyridine series | Hermann Loeffler, Gunther Lamm, Volker Bach, Arno Lange, Helmut Reichelt | 1996-01-16 |
| 5403363 | Dye mixtures containing azo dyes having a coupling component from the diaminopyridine series | Hermann Loeffler, Gunther Lamm, Volker Bach, Arno Lange, Helmut Reichelt | 1995-04-04 |