Patents by Inventor Detlef Pauluth

Detlef Pauluth 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).

  • Oxaphenanthrene derivatives
    Patent number: 8133887
    Abstract: The invention relates to compounds of the formula (I), in which R1, R2, R3, R4, Y and A have the meanings indicated, and to processes for the preparation thereof and to the use thereof for the preparation of medicaments.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: March 13, 2012
    Assignee: Merck Patent GmbH
    Inventors: Andreas Taugerbeck, Detlef Pauluth, Beate Kretschmer, Hanns Wurziger, Axel Jansen, David Maillard
  • Compounds for use in liquid crystal media
    Patent number: 8129002
    Abstract: The present invention is related to compounds for use in liquid crystal media, liquid crystal media comprising said compounds, the use of said media in electro-optical devices, said electro-optical devices, and the use of said compounds in mesogenic media for use in electro-optical devices that may be operated in an optically isotropic state.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: March 6, 2012
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Elvira Montenegro, Louise Diane Farrand, Detlef Pauluth, Michael Heckmeier
  • Process for the preparation of ring compounds
    Patent number: 8124817
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 28, 2012
    Assignee: Merck Patent GmbH
    Inventors: Detlef Pauluth, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • THIOPHENE DERIVATIVES, AND LC MEDIA COMPRISING SAME
    Publication number: 20120001123
    Abstract: The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same.
    Type: Application
    Filed: February 3, 2010
    Publication date: January 5, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Axel Jansen, Detlef Pauluth, Harald Hirschmann, Markus Czanta
  • LIQUID-CRYSTAL MEDIUM
    Publication number: 20110248216
    Abstract: The invention relates to a liquid-crystalline medium having negative dielectric anisotropy which comprises at least one compound of the formula I in which R1, R1* and a have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PS-VA, PALC, FFS or IPS effect.
    Type: Application
    Filed: December 17, 2009
    Publication date: October 13, 2011
    Applicant: MERCK PATENT GMBH
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Konstantin Schneider, Detlef Pauluth
  • Liquid-crystalline medium
    Patent number: 8025935
    Abstract: The invention relates to a liquid-crystalline medium having negative dielectric anisotropy based on a mixture of polar compounds, which comprises at least one compound of the formula I in which R11 and R12 have the meanings indicated in claim 1, in amounts of ?30% by weight, based on the medium, and to the use thereof for an active-matrix display based on the ECB, PALC, FFS or IPS effect.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: September 27, 2011
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Elisabeth Meyer, Detlef Pauluth, Andreas Taugerbeck
  • -Indacene and indeno[5,6-d][1,3]dioxol-derivatives and use thereof as components of liquid-crystal mixtures
    Patent number: 7922934
    Abstract: The invention relates 1,2,3,6,7,8-hexahydro-s-indacene derivatives and 6,7-dihydro-5H-indeno[5,6-d]-1,3-dioxole derivatives, and to the use thereof as component(s) in liquid-crystalline media. In addition, the present invention relates to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: April 12, 2011
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Lars Lietzau, Detlef Pauluth, Markus Czanta
  • Thiophene derivatives, and LC media containing same
    Publication number: 20110049427
    Abstract: The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same.
    Type: Application
    Filed: March 30, 2009
    Publication date: March 3, 2011
    Applicant: MERCK PATENT GESELLSCHAFT
    Inventors: Axel Jansen, Detlef Pauluth, Harald Hirschmann, Markus Czanta
  • PROCESS FOR THE PREPARATION OF RING COMPOUNDS
    Publication number: 20110034738
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Application
    Filed: October 19, 2010
    Publication date: February 10, 2011
    Inventors: Detlef PAULUTH, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • Process for the preparation of ring compounds
    Patent number: 7842845
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: November 30, 2010
    Assignee: Merck GmbH
    Inventors: Detlef Pauluth, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • OPTICAL COMPENSATION FILM FOR LIQUID CRYSTAL DISPLAYS AND INVENTIONS ASSOCIATED THEREWITH
    Publication number: 20100271576
    Abstract: Compensation films for liquid crystal displays, polarizer plates having at least one such compensation film, liquid crystal displays having compensation films, and a method for producing compensation films, polarizer plates, and liquid crystal displays, as well as the use of compounds of the formula (I) described below in more detail as additives to compensation films for liquid crystal displays is provided. The optical compensation films include one or more rod-shaped liquid crystals of the formula (I) as additives, wherein the radicals have the meanings provided in the description for adjusting suitable retardation values Re and Rth.
    Type: Application
    Filed: December 4, 2008
    Publication date: October 28, 2010
    Applicants: LOFO HIGH TECH FILM GMBH, MERCK PATENT GMBH
    Inventors: Detlef Pauluth, Bernhard Rieger, Ulrich Siemann, Ilona Herm
  • LIQUID-CRYSTALLINE MEDIUM AND LIQUID-CRYSTAL DISPLAY
    Publication number: 20100252777
    Abstract: Disclosed are a dielectrically negative, liquid-crystalline medium which contains a (first) dielectrically negative component (component A), which contains one or more dielectrically negative compounds of formula I and a further (second) dielectrically negative component (component B), and the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PS-VA, FFS or IPS effect, and displays of this type.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 7, 2010
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Melanie KLASEN-MEMMER, Axel Jansen, Detlef Pauluth
  • Process for the preparation of ring compounds
    Patent number: 7786332
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: August 31, 2010
    Assignee: Merck Patent GmbH
    Inventors: Detlef Pauluth, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • 2, 5-SELENOPHENE DERIVATIVES AND 2, 5-TELLUROPHENE DERIVATIVES
    Publication number: 20100216986
    Abstract: The invention relates to 2,5-selenophene derivatives and 2,5-tellurophene derivatives, inter alia for use as components in liquid-crystal mixtures, and to liquid-crystal mixtures which comprise the compounds, and to liquid-crystal displays based on these mixtures. The invention furthermore relates to processes for the preparation of the compounds and to Se/Te-containing intermediates.
    Type: Application
    Filed: August 7, 2008
    Publication date: August 26, 2010
    Applicant: MERCK PATENT GESELLSCHAFT
    Inventors: Axel Jansen, Detlef Pauluth, Melanie Klasen-Memmer
  • OPTICAL COMPENSATION FILMS
    Publication number: 20100208181
    Abstract: The invention relates to compensation films for liquid-crystal displays with additions of rod-shaped liquid crystals mentioned below, to polariser plates which have at least one compensation film of this type, to liquid-crystal displays which have compensation films of the said type, and to processes for the production of the said compensation films, polariser plates and liquid-crystal displays, to the use of the compounds described in greater detail below as additions to compensation films for liquid-crystal displays, and to further subject-matters of the invention which can be seen below.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Applicants: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG, LOFO HIGH TECH FILM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Bernd FIEBRANZ, Bernhard RIEGER, Detlef PAULUTH, Axel JANSEN, Ulrich SIEMANN, Llona HERM
  • Liquid-crystal compounds and LC media
    Publication number: 20100181533
    Abstract: Disclosed are novel liquid-crystal compounds, processes and intermediates for the preparation thereof, the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays containing the same.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Applicant: MERCK KGAA
    Inventors: Axel Jansen, Detlef Pauluth, Bernd Fiebranz, Bernhard Rieger
  • Liquid-crystalline medium
    Patent number: 7754103
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds, characterized in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R1A, X, XA, L1-7, A1, Z1 and n have the meanings indicated in claim 1.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: July 13, 2010
    Assignee: Merck Patent GmbH
    Inventors: Atsutaka Manabe, Elvira Montenegro, Gerald Scholz, Detlef Pauluth
  • S-INDACENE AND INDENO[5,6-D][1,3]DIOXOL-DERIVATIVES AND USE THEREOF AS COMPONENTS OF LIQUID-CRYSTAL MIXTURES
    Publication number: 20100155662
    Abstract: The invention relates 1,2,3,6,7,8-hexahydro-s-indacene derivatives and 6,7-dihydro-5H-indeno[5,6-d]-1,3-dioxole derivatives, and to the use thereof as component(s) in liquid-crystalline media. In addition, the present invention relates to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.
    Type: Application
    Filed: July 11, 2006
    Publication date: June 24, 2010
    Inventors: Lars Lietzau, Detlef Pauluth, Markus Czanta
  • Liquid crystalline medium
    Patent number: 7732021
    Abstract: The invention relates to liquid-crystalline compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I in which R1, X, L1, L2 and L3 have the meanings indicated in Claim 1.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: June 8, 2010
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
  • LIQUID-CRYSTALLINE MEDIUM
    Publication number: 20100134751
    Abstract: The invention relates to a liquid-crystalline medium having negative dielectric anisotropy based on a mixture of polar compounds, which comprises at least one compound of the formula I in which R11 and R12 have the meanings indicated in claim 1, in amounts of ?30% by weight, based on the medium, and to the use thereof for an active-matrix display based on the ECB, PALC, FFS or IPS effect.
    Type: Application
    Filed: August 3, 2006
    Publication date: June 3, 2010
    Inventors: Melanie Klasen-Memmer, Elisabeth Meyer, Detlef Pauluth, Andreas Taugerbeck