KD

Karl-Heinz Drexhage

AT AT&T: 8 patents #2,286 of 18,772Top 15%
Eastman Kodak: 5 patents #2,059 of 8,114Top 30%
UN Unknown: 3 patents #7,366 of 83,584Top 9%
EA Evotec Ag: 1 patents #24 of 51Top 50%
RG Roche Diagnostics Gmbh: 1 patents #336 of 851Top 40%
BO BOE: 1 patents #7,844 of 12,373Top 65%
🗺 New York: #6,964 of 115,490 inventorsTop 7%
Overall (All Time): #221,535 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
11180657 Polysulfonated fluorescence dyes Norbert Kemnitzer, Alexander Zilles, Monika Hamers-Schneider, Jutta Arden-Jacob 2021-11-23
9651490 Amine-substituted tricyclic fluorescent dyes Alexander Zilles, Norbert Kemnitzer, Jutta Arden-Jacob, Monika Hamers-Schneider 2017-05-16
9035042 Sulfonamide derivatives of polycyclic dyes used for analytical applications Alexander Zilles, Jutta Arden-Jacob, Norbert Kemnitzer, Monika Hamers-Schneider 2015-05-19
8846924 Sulfonamide derivatives of polycyclic dyes used for analytical applications Alexander Zilles, Jutta Arden-Jacob, Norbert Kemnitzer, Monika Hamers-Schneider 2014-09-30
8785637 Carboxamide-substituted dyes for analytical applications Jutta Arden-Jacob, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles 2014-07-22
8614317 Sulfonamide derivatives of polycyclic dyes used for analytical applications Alexander Zilles, Jutta Arden-Jacob, Norbert Kemnitzer, Monika Hamers-Schneider 2013-12-24
8530660 Carboxamide-substituted dyes for analytical applications Jutta Arden-Jacob, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles 2013-09-10
7935822 Carboxamide-substituted dyes for analytical applications Jutta Arden-Jacob, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles 2011-05-03
7101999 Oxazine derivatives Joachim Fries, Eloisa Lopez-Calle 2006-09-05
6828159 Carbopyronine fluorescent dyes Jutta Arden-Jacob, Jörg Frantzeskos, Alexander Zilles 2004-12-07
6737280 Amidopyrylium fluorescence dyes Jutta Arden-Jacob, Norbert Kemnitzer 2004-05-18
6384914 Method for optical detection of analyte molecules in a natural biological medium Jurgen Wolfrum 2002-05-07
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, Jutta Arden-Jacob 1998-05-12
5214164 Cyanine dyes Elisabeth Drexhage 1993-05-25
4524204 Process for replacing anions or organic cationic salts 1985-06-18
4416961 Color imaging devices and color filter arrays using photo-bleachable dyes 1983-11-22
4345011 Color imaging devices and color filter arrays using photo-bleachable dyes 1982-08-17
4247799 Color imaging devices and color filter arrays using photo-bleachable dyes 1981-01-27
4212519 Light control device and fabrication methods therefor Joseph J. Wrobel 1980-07-15