Patents by Inventor Norbert Kemnitzer

Norbert Kemnitzer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polysulfonated fluorescence dyes
    Patent number: 11180657
    Abstract: The invention relates to compounds of the general formulae (I)-(IV), which are characterized by substituents B comprising one or more sulfonic acid groups and their use as marker groups for the detection of analytes.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 23, 2021
    Assignee: ATTO-TEC GmbH
    Inventors: Norbert Kemnitzer, Alexander Zilles, Karl-Heinz Drexhage, Monika Hamers-Schneider, Jutta Arden-Jacob
  • NOVEL POLYSULFONATED FLUORESCENCE DYES
    Publication number: 20190322870
    Abstract: The invention relates to compounds of the general formulae (I)-(IV), which are characterized by substituents B comprising one or more sulfonic acid groups and their use as marker groups for the detection of analytes.
    Type: Application
    Filed: September 28, 2018
    Publication date: October 24, 2019
    Applicant: ATTO-TEC GmbH
    Inventors: Norbert Kemnitzer, Alexander Zilles, Karl-Heinz Drexhage, Monika Hamers-Schneider, Jutta Arden-Jacob
  • NOVEL POLYSULFONATED FLUORESCENCE DYES
    Publication number: 20190100653
    Abstract: The invention relates to compounds of the general formulae (I)-(IV), which are characterized by substituents B comprising one or more sulfonic acid groups and their use as marker groups for the detection of analytes.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventors: Norbert Kemnitzer, Alexander Zilles, Karl-Heinz Drexhage, Monika Hamers-Schneider, Jutta Arden-Jacob
  • Carboxamide-substituted dyes for analytical applications
    Patent number: 8785637
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: July 22, 2014
    Assignee: Atto-Tec GmbH
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles
  • CARBOXAMIDE-SUBSTITUTED DYES FOR ANALYTICAL APPLICATIONS
    Publication number: 20130323851
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Application
    Filed: August 8, 2013
    Publication date: December 5, 2013
    Applicant: ATTO-TEC GmbH
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles
  • Carboxamide-substituted dyes for analytical applications
    Patent number: 8530660
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: September 10, 2013
    Assignee: ATTO-TEC GmbH
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles
  • CARBOXAMIDE-SUBSTITUTED DYES FOR ANALYTICAL APPLICATIONS
    Publication number: 20110223677
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 15, 2011
    Applicant: ATTO-TEC GmbH
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Këmnitzer, Alexander Zilles
  • Carboxamide-substituted dyes for analytical applications
    Patent number: 7935822
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: May 3, 2011
    Assignee: ATTO-TEC GmbH
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles
  • Sulfonamide derviatives of polycyclic dyes used for analytical applications
    Publication number: 20060179585
    Abstract: The invention concerns the production of quinoline compounds containing sulfonic acid groups, the said quinoline compounds and their conversion into dyes containing sulfonic acid groups. The dyes according to the invention are used especially to label analytes, for example to label biomolecules.
    Type: Application
    Filed: July 2, 2004
    Publication date: August 17, 2006
    Applicant: ATTO-TEC GMBH
    Inventors: Alexander Zilles, Jutta Arden-Jacob, Karl-Heinz Drexhage, Norbert Kemnitzer, Monika Hamers-Schneider
  • Carboxamide-substituted dyes for analytical applications
    Publication number: 20060154251
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 13, 2006
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles
  • Amidopyrylium fluorescence dyes
    Patent number: 6737280
    Abstract: A class of asymmetric monobenzoxanthene compounds useful as fluorescent dyes are disclosed having structure (I) wherein Y1 and Y2 are individually hydroxyl, amino, imminium, or oxygen, R1-R8 are hydrogen, fluorine, chlorine, alkyl, alkene, alkyne, sulfonate, amino, amido, nitrile, alkoxy, linking group, and combinatios thereof, and R9 is acetylene, alkane, alkene, cyano, substituted phenyl, and combinations thereof. The invention further includes novel intermediate compounds useful for the synthesis of asymmetric benzoxanthene compounds having general structure (II) where substituents R3-R7 correspond to like-referenced substituents in the structure of described above, and Y2 is hydroxyl or amine. In another aspect, the invention includes methods for synthesizing the above dye compounds and intermediates. In yet another aspect, the present invention includes reagents labeled with the asymmetric benzoxanthene dye compounds, including deoxynucleotides, dideoxynucleotides, phosphoramidites, and polynucleotides.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 18, 2004
    Assignee: Karl-Heinz Drexhage
    Inventors: Karl-Heinz Drexhage, Jutta Arden-Jacob, Norbert Kemnitzer