Patents by Inventor Matthias Bremer

Matthias Bremer 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).

  • Polymerizable compounds
    Patent number: 7807068
    Abstract: The present invention relates to novel polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (polymer-stabilized) and PSA (polymer-sustained alignment) type.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: October 5, 2010
    Assignee: Merck Patent Gesellschaft
    Inventors: Matthias Bremer, Achim Goetz, Stephan Derow
  • Liquid Crystalline Medium
    Publication number: 20100243958
    Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.
    Type: Application
    Filed: June 8, 2010
    Publication date: September 30, 2010
    Inventors: Melanie Klasen-Memmer, Matthias Bremer
  • Liquid-crystalline medium
    Patent number: 7767280
    Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 3, 2010
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Melanie Klasen-Memmer, Matthias Bremer
  • LIQUID-CRYSTAL DISPLAY
    Publication number: 20100188618
    Abstract: The present invention relates to a liquid-crystal (LC) display of the PS (polymer stabilised) or PSA (polymer sustained alignment) type, and to polymerisable compounds and LC media for use in PS (polymer stabilised) and PSA displays.
    Type: Application
    Filed: July 3, 2008
    Publication date: July 29, 2010
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG
    Inventors: Matthias Bremer, Georg Bernatz
  • Cyclobutane and spiro[3.3]heptane compounds
    Patent number: 7744968
    Abstract: The present invention relates to cyclobutane and spiro[3.3]heptane compounds, to a process for the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain these liquid-crystalline media.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: June 29, 2010
    Assignee: Merck Patent GmbH
    Inventors: Volker Reiffenrath, Matthias Bremer, Melanie Klasen-Memmer
  • Stilbene derivatives, liquid-crystal mixtures and electro-optical displays
    Patent number: 7732022
    Abstract: Disclosed are fluorostilbene compounds of formula I, liquid-crystal media which comprise these compounds, the use of the media in electro-optical displays, in particular in VAN LCDs, and a process for the preparation of these compounds.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 8, 2010
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Atsutaka Manabe
  • Liquid-crystal medium
    Patent number: 7731865
    Abstract: The present invention relates to liquid-crystal (LIQUID CRYSTALLINE) media comprising polymerizable compounds, in particular for use in LIQUID CRYSTALLINE displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, and to PS(A) displays containing LIQUID CRYSTALLINE media of this type.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: June 8, 2010
    Assignee: Merck Patent GmbH
    Inventors: Georg Bernatz, Andreas Taugerbeck, Matthias Bremer, Achim Goetz
  • LIQUID-CRYSTALLINE MEDIUM
    Publication number: 20100102275
    Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Inventors: Melanie Klasen-Memmer, Matthias Bremer
  • Liquid-crystalline medium comprising fluorinated indane compound
    Patent number: 7704567
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of negative dielectric anisotropy, which comprises at least one compound of the formula I in which R11, R12, A1, A2, Z1, Z2, m and n are as defined in Claim 1, and to the use thereof for an active-matrix display based on the ECB, PALC or IPS effect.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: April 27, 2010
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Lars Lietzau, Matthias Bremer
  • Liquid-crystalline medium
    Patent number: 7662443
    Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I in which Z1, Z2, Z3, a, b and c are as defined in claim 1, and to electro-optical displays containing a liquid-crystalline medium of this type.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: February 16, 2010
    Assignee: Merck Patent Gesellschaft mit Beschraenkter Haftung
    Inventors: Michael Heckmeier, Brigitte Schuler, Martin Engel, Peer Kirsch, Matthias Bremer
  • LIQUID-CRYSTAL DISPLAY
    Publication number: 20090324853
    Abstract: The present invention relates to a liquid-crystal (LC) display of the PSA (polymer sustained alignment) type, and to novel polymerisable compounds and novel LC media for use in PSA displays.
    Type: Application
    Filed: May 20, 2008
    Publication date: December 31, 2009
    Applicant: Merck Patent GmbH
    Inventors: Georg Bernatz, Andreas Taugerbeck, Matthias Bremer, Achim Goetz
  • LIQUID-CRYSTALLINE MEDIUM
    Publication number: 20090309066
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of dielectrically negative, polar compounds which comprises at least one compound of the formula I in which the parameters have the meanings indicated in claim 1, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect, and to displays of this type.
    Type: Application
    Filed: July 17, 2007
    Publication date: December 17, 2009
    Inventors: Melanie Klasen-Memmer, Georg Bernatz, Izumi Saito, Matthias Bremer, Lars Lietzau, Volker Reiffenrath
  • Cyclopenta[b]naphthalene derivatives
    Patent number: 7612243
    Abstract: The present invention relates to cyclopenta[b]naphthalene derivatives to the use thereof in liquid-crystalline or mesogenic media, to liquid-crystalline or mesogenic media comprising at least one of these cyclopenta[b]naphthalene derivatives, and to electro-optical display elements containing these liquid-crystalline or mesogenic media.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 3, 2009
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Matthias Bremer, Melanie Klasen-Memmer, Michael Heckmeier
  • Liquid-crystalline medium
    Patent number: 7582337
    Abstract: Disclosed are a liquid-crystalline medium based on a mixture of polar compounds, which contains at least one compound of formula I and the use thereof for an active-matrix display based on the ECB, FFS, PALC or IPS effect.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: September 1, 2009
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Izumi Saito
  • Cyclopenta[a]naphthaline derivatives
    Patent number: 7575785
    Abstract: The present invention relates to cyclopenta[a]naphthalene derivatives of the general formulae I to V in which B, Z, A, n, R, X1, X1a, X1b, X2, X3, E1 and E2 are as defined in the claims, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one of these cyclopenta[a]naphthalene derivatives, and to electro-optical display elements containing these liquid-crystalline media.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: August 18, 2009
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Matthias Bremer, Melanie Klasen-Memmer
  • Liquid-crystal medium
    Patent number: 7560147
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds which comprises at least one compound of the formula I in which R11, R12, A1, A2, Z1, Z2, m and n have the meanings indicated in claim 1, and to the use thereof for an active-matrix display based on the ECB, PALC or IPS effect.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: July 14, 2009
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Detlef Pauluth, Barbara Hornung, Wolfgang Schmidt, Rainer Wingen
  • POLYMERIZABLE COMPOUNDS
    Publication number: 20090141215
    Abstract: The present invention relates to novel polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (polymer-stabilized) and PSA (polymer-sustained alignment) type.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Inventors: Matthias Bremer, Achim Goetz, Stephan Derow
  • LIQUID-CRYSTAL MEDIUM
    Publication number: 20090103011
    Abstract: The present invention relates to liquid-crystal (LIQUID CRYSTALLINE) media comprising polymerizable compounds, in particular for use in LIQUID CRYSTALLINE displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type, and to PS(A) displays containing LIQUID CRYSTALLINE media of this type.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 23, 2009
    Inventors: Georg BERNATZ, Andreas Taugerbeck, Matthias Bremer, Achim Goetz
  • As-indacen derivatives
    Patent number: 7517471
    Abstract: The present invention relates to compounds of the formula I where X1, X2, R1, R2, A1, A2, Z1, Z2, m, n and rings B and B? are as defined in claim 1.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: April 14, 2009
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Matthias Bremer, Melanie Klasen-Memmer
  • Dibenzofuran derivatives, dibenzothiophene derivatives and fluorene derivatives
    Patent number: 7514127
    Abstract: The present invention relates to compounds of the formula I where Y, X1, X2, X3, R1, R2, A1, A2, Z1, Z2, m and n are as defined in Claim 1, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements containing the liquid-crystalline media according to the invention.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: April 7, 2009
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Matthias Bremer, Melanie Klasen-Memmer