Patents by Inventor Norbert Uwe Kemnitzer

Norbert Uwe 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).

  • Amine-substituted tricyclic fluorescent dyes
    Patent number: 9651490
    Abstract: The present invention relates to polycyclic compounds of the general formula (I) which are distinguished by an amine substituent NR6R7 on the central carbon atom of the chromophore, to processes for their preparation, and to the use thereof for the determination of analytes.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: May 16, 2017
    Assignee: ATTO-TEC GMBH
    Inventors: Alexander Zilles, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Jutta Arden-Jacob, Monika Hamers-Schneider
  • Sulfonamide derivatives of polycyclic dyes used for analytical applications
    Patent number: 9035042
    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: Grant
    Filed: July 2, 2004
    Date of Patent: May 19, 2015
    Assignee: ATTO-TEC GmbH
    Inventors: Alexander Zilles, Jutta Arden-Jacob, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Monika Hamers-Schneider
  • Sulfonamide derivatives of polycyclic dyes used for analytical applications
    Patent number: 8846924
    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: Grant
    Filed: March 25, 2011
    Date of Patent: September 30, 2014
    Assignee: Atto-Tec GmbH
    Inventors: Alexander Zilles, Jutta Arden-Jacob, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Monika Hamers-Schneider
  • Sulfonamide derivatives of polycyclic dyes used for analytical applications
    Patent number: 8614317
    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: Grant
    Filed: March 25, 2011
    Date of Patent: December 24, 2013
    Assignee: Atto-Tec GmbH
    Inventors: Alexander Zilles, Jutta Arden-Jacob, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Monika Hamers-Schneider
  • Novel Amine-Substituted Tricyclic Fluorescent Dyes
    Publication number: 20130224871
    Abstract: The present invention relates to polycyclic compounds of the general formula (I) which are distinguished by an amine substituent NR6R7 on the central carbon atom of the chromophore, to processes for their preparation, and to the use thereof for the determination of analytes.
    Type: Application
    Filed: October 18, 2011
    Publication date: August 29, 2013
    Applicant: ATTO-TEC GmbH
    Inventors: Alexander Zilles, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Jutta Arden-Jacob, Monika Hamers-Schneider
  • SULFONAMIDE DERIVATIVES OF POLYCYCLIC DYES USED FOR ANALYTICAL APPLICATIONS
    Publication number: 20110190486
    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: March 25, 2011
    Publication date: August 4, 2011
    Applicant: ATTO-TEC GMBH
    Inventors: Alexander Zilles, Jutta Arden-Jacob, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Monika Hamers-Schneider
  • SULFONAMIDE DERIVATIVES OF POLYCYCLIC DYES USED FOR ANALYTICAL APPLICATIONS
    Publication number: 20110172420
    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: March 25, 2011
    Publication date: July 14, 2011
    Applicant: ATTO-TEC GMBH
    Inventors: Alexander Zilles, Jutta Arden-Jacob, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Monika Hamers-Schneider