Patents by Inventor Marie-Isabell MATTERN-FRÜHWALD
Marie-Isabell MATTERN-FRÜHWALD 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).
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Patent number: 11828720Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: GrantFiled: December 2, 2020Date of Patent: November 28, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Rigobert Chrzan, Sabrina Sommer, Frank Mett, Andreas Hengstenberg
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Publication number: 20230324263Abstract: An analyzer and a process analyze a breath sample exhaled by a subject for a predetermined substance, particularly alcohol. An input fluid connection connects an input unit (1) to a measuring chamber (3). A suction fluid connection connects the measuring chamber to a suction chamber unit (5, 6), that is selectively transferrable to a with minimum volume state or a maximum volume state. A sensor (12) measures an amount or a concentration of the substance in the measuring chamber. A drive unit (4, 11) moves a valve (2, 13) for the input fluid connection selectively into a closing or into a releasing end position. The drive unit can also move the suction chamber unit between the two states. The movement of the valve (2, 13) from one end position to the other end position is coupled with a transfer of the suction chamber unit (5, 6) between the two states.Type: ApplicationFiled: April 3, 2023Publication date: October 12, 2023Inventors: Jens REKOW, Marie-Isabell MATTERN-FRUEHWALD, Tobias REIER, Luis Brunswick FRANCO, Nick BENDORF
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Patent number: 11751805Abstract: A detection system (100) detects at least ethanol in human sweat. The detection system (100) includes at least one sensor (105) that is an electrochemical gas sensor. The at least one sensor (105) is configured at least for the detection of ethanol. The detection system (100) further includes a measuring chamber (107), in which substances excreted by the user via the user's skin can be fed via a waterproof, gas-permeable diffusion membrane to the at least one sensor (105). The detection system (100) further includes at least one seal (127), which is configured to be brought into direct contact with the skin of a user and to protect at least the measuring chamber (107) from environmental effects.Type: GrantFiled: June 19, 2020Date of Patent: September 12, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Rainer Polzius, Michael Sick, Jens Rekow, Marie-Isabell Mattern-Frühwald
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Publication number: 20220326177Abstract: An electrochemical fuel cell measures ethanol in human breath and a process maintains such an electrochemical fuel cell. The electrochemical fuel cell includes a first electrode (1), a second electrode (2) and a third electrode (3). The first electrode (1) is used as a measuring electrode in a regular operating mode of the electrochemical fuel cell and as a measuring electrode or as a reference electrode in a maintenance mode of the electrochemical fuel cell. The second electrode (2) is used as a counter electrode in the regular operating mode of the electrochemical fuel cell and as a measuring electrode or as a reference electrode in the maintenance mode of the electrochemical fuel cell. The third electrode (3) is used as a counter electrode in the maintenance mode of the electrochemical fuel cell.Type: ApplicationFiled: May 4, 2020Publication date: October 13, 2022Inventors: Stephan HAUPT, Andreas NAUBER, Michael SICK, Marie-Isabell MATTERN-FRÜHWALD, Susanne KASSA
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Publication number: 20220152613Abstract: A storage device (20) stores a gas measuring device (10). The gas measuring device (10) has at least one electrochemical sensor (11) for measuring the concentration of a gas. The storage device (20) has a temperature control device (21) for controlling the temperature of the electrochemical sensor (11). A system (40) includes such a storage device (20) and a gas measuring device (10) that is stored therein. The temperature control device (21) is arranged at the storage device (20) such that the temperature control device (21) is located opposite the electrochemical sensor (11) of the gas measuring device (10) during the temperature control. A process for storing a gas measuring device (10) in such a storage device (20) includes controlling the temperature of the electrochemical sensor (11) of the gas measuring device (10) by the temperature control device (21) during the storage.Type: ApplicationFiled: November 16, 2021Publication date: May 19, 2022Inventors: Andreas NAUBER, Michael SICK, Marie-Isabell MATTERN-FRÜHWALD
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Publication number: 20220099614Abstract: A multi-gas sensor includes a defined arrangement of working electrodes and a reference electrode. The reference electrode has two conductively connected single electrodes formed of respective different electrode materials. The working electrode and the single electrodes are preferably each disk-shaped and are arranged in two stacks one on top of another. A process is provided for a quantitative or qualitative determination of two target gases with the multi-gas sensor.Type: ApplicationFiled: September 28, 2021Publication date: March 31, 2022Inventors: Andreas NAUBER, Michael SICK, Marie-Isabell MATTERN-FRÜHWALD, Beate RITZ
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Publication number: 20220031202Abstract: An electronic ankle monitor, a process for a control unit of an electronic ankle monitor, as well as to a process for detecting alcohol in sweat are provided. The electronic ankle monitor (10) includes an electrochemical sensor (11) and an electrically operated heating element (12) for heating skin (20) in an area around the electrochemical sensor.Type: ApplicationFiled: July 29, 2021Publication date: February 3, 2022Inventors: Michael SICK, Marie-Isabell Mattern-Frühwald
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Patent number: 10969361Abstract: An electrochemical gas sensor (10) has a housing (20), a working electrode (51), a counterelectrode (52) and a reference electrode (53). The housing (20) has an electrolyte reservoir (30), a gas inlet orifice (21) and at least one gas outlet orifice (22). The electrolyte reservoir (30) is filled with a liquid electrolyte (40). The gas sensor (10) has a counterelectrode carrier (26). The counterelectrode (52) is suspended on the counterelectrode carrier (26) in such a way that the counterelectrode (52) is suspended in the electrolyte reservoir (30) and the electrolyte (40) flows around the counterelectrode (52) on all sides. Preferably, the electrolyte includes (I) a solvent, e.g. water, propylene carbonate, ethylene carbonate or mixtures thereof; (ii) a conductive salt, especially an ionic liquid; and/or (iii) an organic mediator, for example substituted quinones, anthraquinones, etc.Type: GrantFiled: November 30, 2018Date of Patent: April 6, 2021Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Frank Mett, Rigobert Chrzan, Sabrina Pilz
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Publication number: 20210088470Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: ApplicationFiled: December 2, 2020Publication date: March 25, 2021Inventors: Andreas NAUBER, Michael SICK, Gregor STEINER, Marie-Isabell MATTERN-FRÜHWALD, Rigobert CHRZAN, Sabrina SOMMER, Frank METT, Andreas HENGSTENBERG
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Patent number: 10883958Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: GrantFiled: September 1, 2014Date of Patent: January 5, 2021Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Rigobert Chrzan, Sabrina Sommer, Frank Mett, Andreas Hengstenberg
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Publication number: 20200397368Abstract: A detection system (100) detects at least ethanol in human sweat. The detection system (100) includes at least one sensor (105) that is an electrochemical gas sensor. The at least one sensor (105) is configured at least for the detection of ethanol. The detection system (100) further includes a measuring chamber (107), in which substances excreted by the user via the user's skin can be fed via a waterproof, gas-permeable diffusion membrane to the at least one sensor (105). The detection system (100) further includes at least one seal (127), which is configured to be brought into direct contact with the skin of a user and to protect at least the measuring chamber (107) from environmental effects.Type: ApplicationFiled: June 19, 2020Publication date: December 24, 2020Inventors: Rainer POLZIUS, Michael SICK, Jens REKOW, Marie-Isabell MATTERN-FRÜHWALD
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Publication number: 20200326299Abstract: An electrochemical gas sensor (10) includes a housing (20) and with at least one electrode (21, 22). The housing (20) has a gas inlet (23). An at least strongly acidic, liquid electrolyte (30) is present in the gas sensor (10). The electrolyte (30) partly wets the electrode (21, 22). Provisions are made in such a gas sensor (10) for the electrolyte (30) to contain an additive that contains at least one surfactant. An electrolyte (30) is also provided for a gas sensor (10), which electrolyte (30) contains at least one surfactant as an additive.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: Dräger Safety AG & Co. KGaAInventors: Petra GLAS, Peter TSCHUNCKY, Marie-Isabell MATTERN-FRÜHWALD, Susanne KASSA, Christoph BERNSTEIN
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Patent number: 10732144Abstract: An electrochemical gas sensor (10) includes a housing (20) and with at least one electrode (21, 22). The housing (20) has a gas inlet (23). An at least strongly acidic, liquid electrolyte (30) is present in the gas sensor (10). The electrolyte (30) partly wets the electrode (21, 22). Provisions are made in such a gas sensor (10) for the electrolyte (30) to contain an additive that contains at least one surfactant. An electrolyte (30) is also provided for a gas sensor (10), which electrolyte (30) contains at least one surfactant as an additive.Type: GrantFiled: February 19, 2016Date of Patent: August 4, 2020Assignee: Dräger Safety AG & Co. KGaAInventors: Petra Glas, Peter Tschuncky, Marie-Isabell Mattern-Frühwald, Susanne Kassa, Christoph Bernstein
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Publication number: 20190101506Abstract: An electrochemical gas sensor (10) has a housing (20), a working electrode (51), a counterelectrode (52) and a reference electrode (53). The housing (20) has an electrolyte reservoir (30), a gas inlet orifice (21) and at least one gas outlet orifice (22). The electrolyte reservoir (30) is filled with a liquid electrolyte (40). The gas sensor (10) has a counterelectrode carrier (26). The counterelectrode (52) is suspended on the counterelectrode carrier (26) in such a way that the counterelectrode (52) is suspended in the electrolyte reservoir (30) and the electrolyte (40) flows around the counterelectrode (52) on all sides. Preferably, the electrolyte includes (I) a solvent, e.g. water, propylene carbonate, ethylene carbonate or mixtures thereof; (ii) a conductive salt, especially an ionic liquid; and/or (iii) an organic mediator, for example substituted quinones, anthraquinones, etc.Type: ApplicationFiled: November 30, 2018Publication date: April 4, 2019Inventors: Andreas NAUBER, Michael SICK, Gregor STEINER, Marie-Isabell MATTERN-FRÜHWALD, Frank METT, Rigobert CHRZAN, Sabrina SOMMER
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Patent number: 10175191Abstract: An electrochemical gas sensor (10) has a housing (20), a working electrode (51), a counterelectrode (52) and a reference electrode (53). The housing (20) has an electrolyte reservoir (30), a gas inlet orifice (21) and at least one gas outlet orifice (22). The electrolyte reservoir (30) is filled with a liquid electrolyte (40). The gas sensor (10) has a counterelectrode carrier (26). The counterelectrode (52) is suspended on the counterelectrode carrier (26) in such a way that the counterelectrode (52) is suspended in the electrolyte reservoir (30) and the electrolyte (40) flows around the counterelectrode (52) on all sides. Preferably, the electrolyte includes (I) a solvent, e.g. water, propylene carbonate, ethylene carbonate or mixtures thereof; (ii) a conductive salt, especially an ionic liquid; and/or (iii) an organic mediator, for example substituted quinones, anthraquinones, etc.Type: GrantFiled: September 1, 2014Date of Patent: January 8, 2019Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Frank Mett, Rigobert Chrzan, Sabrina Sommer
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Publication number: 20180031516Abstract: An electrochemical gas sensor (10) includes a housing (20) and with at least one electrode (21, 22). The housing (20) has a gas inlet (23). An at least strongly acidic, liquid electrolyte (30) is present in the gas sensor (10). The electrolyte (30) partly wets the electrode (21, 22). Provisions are made in such a gas sensor (10) for the electrolyte (30) to contain an additive that contains at least one surfactant. An electrolyte (30) is also provided for a gas sensor (10), which electrolyte (30) contains at least one surfactant as an additive.Type: ApplicationFiled: February 19, 2016Publication date: February 1, 2018Inventors: Petra GLAS, Peter TSCHUNCKY, Marie-Isabell MATTERN-FRÜHWALD, Susanne KASSA, Christoph BERNSTEIN
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Publication number: 20160116430Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: ApplicationFiled: September 1, 2014Publication date: April 28, 2016Inventors: Andreas NAUBER, Michael SICK, Gregor STEINER, Marie-Isabell MATTERN-FRÜHWALD, Rigobert CHRZAN, Sabrina SOMMER, Frank METT, Andreas HENGSTENBERG
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Publication number: 20160103092Abstract: An electrochemical gas sensor (10) has a housing (20), a working electrode (51), a counterelectrode (52) and a reference electrode (53). The housing (20) has an electrolyte reservoir (30), a gas inlet orifice (21) and at least one gas outlet orifice (22). The electrolyte reservoir (30) is filled with a liquid electrolyte (40). The gas sensor (10) has a counterelectrode carrier (26). The counterelectrode (52) is suspended on the counterelectrode carrier (26) in such a way that the counterelectrode (52) is suspended in the electrolyte reservoir (30) and the electrolyte (40) flows around the counterelectrode (52) on all sides. Preferably, the electrolyte includes (I) a solvent, e.g. water, propylene carbonate, ethylene carbonate or mixtures thereof; (ii) a conductive salt, especially an ionic liquid; and/or (iii) an organic mediator, for example substituted quinones, anthraquinones, etc.Type: ApplicationFiled: September 1, 2014Publication date: April 14, 2016Inventors: Andreas NAUBER, Michael SICK, Gregor STEINER, Marie-Isabell MATTERN-FRÜHWALD, Frank METT, Rigobert CHRZAN, Sabrina SOMMER