Patents by Inventor Dagmar Klass
Dagmar Klass 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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Publication number: 20220073822Abstract: The present invention relates to components for high-frequency technology, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures and electronic beam steering antennas (e.g. phased array antennas) comprising a liquid-crystalline medium, and to the liquid-crystalline medium used therein, wherein the liquid crystal medium comprises one or more compounds of formula S as defined in claim 1.Type: ApplicationFiled: December 11, 2019Publication date: March 10, 2022Applicant: Merck Patent GmbHInventors: Dagmar KLASS, Carsten FRITZSCH, Constanze BROCKE, Dmitry USHAKOV, Beate SCHNEIDER
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Patent number: 11268026Abstract: Liquid-crystalline media containing one or more compounds of formula T and one or more compounds of formulae I, II and/or III, high-frequency components containing these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g., phased array antennas.Type: GrantFiled: March 22, 2019Date of Patent: March 8, 2022Assignee: Merck Patent GmbHInventors: Dagmar Klass, Carsten Fritzsch
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Patent number: 11254874Abstract: The present invention relates to liquid-crystalline media comprising one or more chiral compounds and one or more compounds selected from the group of compounds of formulae I, II and III, in which the parameters have the meaning indicated in claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: May 19, 2016Date of Patent: February 22, 2022Assignee: Merck Patent GmbHInventors: Michael Wittek, Dagmar Klass
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Patent number: 11180698Abstract: The present invention relates to liquid-crystalline media comprising one or more pleochroic compounds, and one or more compounds selected from the group of compounds of formulae I, II and III, in which the groups have the meanings as set forth in claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: January 20, 2017Date of Patent: November 23, 2021Assignee: Merck Patent GmbHInventors: Michael Wittek, Dagmar Klass, Peer Kirsch
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Patent number: 11008514Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterised in that it comprises one or more compounds of the formula I in a total concentration of ?40%, in which the parameters have the meanings indicated in claim 1, and to the use of the liquid-crystalline medium for electro-optical purposes, in particular in liquid-crystal light valves for lighting devices for motor vehicles, and to liquid-crystal light valves which comprise this medium and lighting devices for motor vehicles which contain such liquid-crystal light valves.Type: GrantFiled: October 5, 2016Date of Patent: May 18, 2021Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass
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Publication number: 20210139777Abstract: The present invention relates to a liquid-crystalline medium having a clearing point of 120° C. or more, comprising one or more compounds selected from the group of the compounds of the formulae IA, IB, IC, ID and II in which the groups and parameters occurring have the meanings indicated in Claim 1, in a total concentration of 65% or more, and to the use thereof for electro-optical purposes, in particular for liquid-crystal light valves for use in lighting devices for motor vehicles, to liquid-crystal light valves containing this medium, and to lighting devices based on liquid-crystal light valves of this type.Type: ApplicationFiled: May 28, 2018Publication date: May 13, 2021Applicant: MERCK PATENT GMBHInventors: Michael WITTEK, Dagmar KLASS
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Publication number: 20210122725Abstract: The present invention relates to dibenzofuans and dibenzothiophenes thiophenes of formula I in which the occurring groups and parameters have the meanings as indicated in claim 1, to liquid-crystalline media comprising same and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas.Type: ApplicationFiled: October 16, 2018Publication date: April 29, 2021Applicant: MERCK PATENT GMBHInventors: Dmitry USHAKOV, Beate SCHNEIDER, Carsten FRITZSCH, Dagmar KLASS
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Publication number: 20210122977Abstract: The present invention relates to isothiocyanato tolane derivatives of formula I in which the occurring groups have the meanings indicated in claim 1, to a process for their preparation, to liquid-crystalline media comprising same and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas.Type: ApplicationFiled: September 11, 2018Publication date: April 29, 2021Applicant: MERCK PATENT GMBHInventors: Dmitry USHAKOV, Beate SCHNEIDER, Carsten FRITZSCH, Michael WITTEK, Dagmar KLASS
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Publication number: 20210115337Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds selected from the group of compounds of formula I in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: ApplicationFiled: March 13, 2018Publication date: April 22, 2021Applicant: MERCK PATENT GMBHInventors: Michael WITTEK, Dagmar KLASS
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Patent number: 10975308Abstract: A liquid-crystalline media comprising one or more compounds of formula S where the parameters have the meaning defined in claim 1, and one or more compounds of the formula I and one or more compounds of the formula II or one or more compounds of the formula I and one or more compounds of the formula III or one or more compounds of the formula II and one or more compounds of the formula III or one or more compounds of the formula I and one or more compounds of the formula II and one or more compounds of the formula III: in which the parameters have the meaning indicated in claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: April 27, 2016Date of Patent: April 13, 2021Assignee: MERCK PATENT GMBHInventors: Atsutaka Manabe, Rocco Fortte, Dagmar Klass, Renate Seeger
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Publication number: 20210102122Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula CC in which the groups occurring have the meanings indicated in Claim 1, and to the use of the liquid-crystalline medium for electro-optical purposes, in particular in liquid-crystal light valves for lighting devices for vehicles, and to liquid-crystal light valves which comprise this medium and lighting devices for vehicles which contain liquid-crystal light valves of this type.Type: ApplicationFiled: April 24, 2018Publication date: April 8, 2021Applicant: Merck Patent GmbHInventors: Michael WITTEK, Dagmar KLASS
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Patent number: 10858587Abstract: Liquid-crystalline media containing one or more compounds of formulae I-1, I-2 and/or I-3 and one or more compounds of formulae II and/or III and components containing these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: October 18, 2017Date of Patent: December 8, 2020Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass
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Publication number: 20200347301Abstract: Liquid-crystalline media comprising one or more compounds of formula T as defined in claim 1, and high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.Type: ApplicationFiled: April 29, 2020Publication date: November 5, 2020Applicant: MERCK PATENT GMBHInventors: Constanze BROCKE, Dmitry USHAKOV, Beate SCHNEIDER, Dagmar KLASS, Carsten FRITZSCH
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Publication number: 20200255737Abstract: The present invention relates to liquid-crystalline media comprising one or more pleochroic compounds, and one or more compounds selected from the group of compounds of formulae I, II and III, in which the groups have the meanings as set forth in claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: ApplicationFiled: January 20, 2017Publication date: August 13, 2020Applicant: Merck Patent GmbHInventors: Michael WITTEK, Dagmar KLASS, Peer KIRSCH
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Patent number: 10711197Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds selected from the group of compounds of formulae I, II and III, in which the parameters R1-R3, Z21, Z31, Z32 and rings A11, A12, A13, A21, A22, A31, and A32 are as defined herein, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: January 26, 2017Date of Patent: July 14, 2020Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass, Atsutaka Manabe, Christian Jasper, Volker Reiffenrath, Constanze Brocke, Detlef Pauluth
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Patent number: 10711195Abstract: The present invention relates to liquid crystal mixtures comprising one or more compounds of the formula A and, in addition one or more compounds of formula I or one or more compounds of formula II wherein the individual radicals have the respective meanings indicated in claim 1, to the use thereof for high-frequency components, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media.Type: GrantFiled: March 22, 2017Date of Patent: July 14, 2020Assignee: Merck Patent GmbHInventors: Atsutaka Manabe, Christian Jasper, Volker Reiffenrath, Constanze Brocke, Detlef Pauluth, Dagmar Klass, Renate Seeger
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Patent number: 10676670Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds of formula T and one or more compounds selected from the group of compounds of formulae I, II and III, in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: December 14, 2015Date of Patent: June 9, 2020Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass
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Patent number: 10550326Abstract: The present invention relates to liquid-crystalline media comprising one or more polymerisable compounds, preferably of formula P Pa-(Spa)s1-(A1-Z1)n1-A2-Q-A3-(Z4-A4)n2-(Spb)s2-Pb??P and one or more compounds selected from the group of compounds of formulae I, II, and III, in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.Type: GrantFiled: April 20, 2015Date of Patent: February 4, 2020Assignee: MERCK PATENT GMBHInventors: Michael Wittek, Dagmar Klass
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Publication number: 20190352564Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds of formula C as defined in claim 1, and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas (e.g. phased array antennas).Type: ApplicationFiled: May 16, 2019Publication date: November 21, 2019Applicant: MERCK PATENT GMBHInventors: Dagmar KLASS, Carsten FRITZSCH, Dmitry USHAKOV, Beate SCHNEIDER
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Publication number: 20190330530Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds of formula DFS in which the groups and parameters occurring have the meanings indicated in claim 1, to high-frequency components comprising same, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas. The present invention further relates to novel mesogenic compounds.Type: ApplicationFiled: October 23, 2017Publication date: October 31, 2019Applicant: Merck Patent GmbHInventors: Atsutaka MANABE, Christian JASPER, Volker REIFFENRATH, Constanze BROCKE, Detlef PAULUTH, Dagmar KLASS, Michael WITTEK, Renate SEEGER, Dmitry USHAKOV, Beate SCHNEIDER