Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11180657 | Polysulfonated fluorescence dyes | Norbert Kemnitzer, Alexander Zilles, Karl-Heinz Drexhage, Monika Hamers-Schneider | 2021-11-23 |
| 9651490 | Amine-substituted tricyclic fluorescent dyes | Alexander Zilles, Karl-Heinz Drexhage, Norbert Kemnitzer, Monika Hamers-Schneider | 2017-05-16 |
| 9035042 | Sulfonamide derivatives of polycyclic dyes used for analytical applications | Alexander Zilles, Karl-Heinz Drexhage, Norbert Kemnitzer, Monika Hamers-Schneider | 2015-05-19 |
| 8846924 | Sulfonamide derivatives of polycyclic dyes used for analytical applications | Alexander Zilles, Karl-Heinz Drexhage, Norbert Kemnitzer, Monika Hamers-Schneider | 2014-09-30 |
| 8785637 | Carboxamide-substituted dyes for analytical applications | Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles | 2014-07-22 |
| 8614317 | Sulfonamide derivatives of polycyclic dyes used for analytical applications | Alexander Zilles, Karl-Heinz Drexhage, Norbert Kemnitzer, Monika Hamers-Schneider | 2013-12-24 |
| 8530660 | Carboxamide-substituted dyes for analytical applications | Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles | 2013-09-10 |
| 7935822 | Carboxamide-substituted dyes for analytical applications | Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles | 2011-05-03 |
| 6828159 | Carbopyronine fluorescent dyes | Karl-Heinz Drexhage, Jörg Frantzeskos, Alexander Zilles | 2004-12-07 |
| 6737280 | Amidopyrylium fluorescence dyes | Karl-Heinz Drexhage, Norbert Kemnitzer | 2004-05-18 |
| 6184379 | Rhodamine derivatives and the use thereof | Hans-Peter Josel, Rupert Herrmann, Dieter Heindl, Klaus Muhlegger, Gregor Sagner +2 more | 2001-02-06 |
| 5750409 | Pentacyclic compounds and their use as absorption or fluorescent dyes | Rupert Herrmann, Hans-Peter Josel, Karl-Heinz Drexhage | 1998-05-12 |