Patents by Inventor Andreas Guentner

Andreas Guentner 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).

  • Device and method for detecting an analyte
    Patent number: 12196727
    Abstract: The invention relates to a device (1) for detecting an analyte in a gas mixture or a liquid, comprising: (a) a polymer sorption filter (2) configured to separate methanol from ethanol; and/or to separate hydrogen and/or methane from interferants; and (b) means configured to detect (4) at least one of methanol, ethanol, hydrogen and methane. Furthermore, described is a method for detecting an analyte using the device and the use of the device.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 14, 2025
    Assignee: ETH ZURICH
    Inventors: Sotiris Pratsinis, Andreas Güntner, Jan van den Broek, Sebastian Abegg
  • Device and Method for Detecting an Analyte
    Publication number: 20220082541
    Abstract: The invention relates to a device (1) for detecting an analyte in a gas mixture or a liquid, comprising: (a) a polymer sorption filter (2) configured to separate methanol from ethanol; and/or to separate hydrogen and/or methane from interferants; and (b) means configured to detect (4) at least one of methanol, ethanol, hydrogen and methane. Furthermore, described is a method for detecting an analyte using the device and the use of the device.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 17, 2022
    Inventors: Sotiris Pratsinis, Andreas Güntner, Jan van den Broek, Sebastian Abegg
  • Tryptanthrine derivatives
    Patent number: 5420259
    Abstract: Tryptanthrine derivative of the formula ##STR1## where the rings A and B may be benzofused and/or substituted and X is a radical which is derived from a CH-acidic heterocyclic structure which may have a further tryptanthrine radical or from a hydrazinoanthraquinone or, if one or both of the rings A and B are benzofused and/or substituted by phthaloyl, is furthermore oxygen, are used as colorants.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: May 30, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Guentner, Guenther Seybold, Gerhard Wagenblast
  • Benzopyrans for use in recording systems
    Patent number: 4966983
    Abstract: Benzopyrans of the formula ##STR1## where X is a radical ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and the ring A have the meanings stated in the description, a process for their preparation, and their use in pressure-sensitive or heat-sensitive layers.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: October 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Guentner, Udo Mayer, Andreas Oberlinner
  • Benzopyran derivatives
    Patent number: 4958021
    Abstract: Benzopyran derivatives of the formula ##STR1## where X is the radical ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and also the ring A have defined meanings are used in pressure- or heat-sensitive layers.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: September 18, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Guentner, Udo Mayer, Andreas Oberlinner
  • Carbazole containing benzopyrans
    Patent number: 4841050
    Abstract: Benzopyrans of the formula ##STR1## where X is a radical ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and the ring A have the meanings stated in the description, a process for their preparation, and their use in pressure-sensitive or heat-sensitive layers.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: June 20, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Guentner, Udo Mayer, Andreas Oberlinner