Patents by Inventor Stephan Derow

Stephan Derow 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).

  • Patent number: 10550327
    Abstract: Polymerisable compounds and processes and intermediates for the preparation thereof. Also liquid-crystal (LC) media comprising the polymerisable compounds, and the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: February 4, 2020
    Assignee: Merck Patent GmbH
    Inventors: Martin Engel, Andreas Taugerbeck, Constanze Brocke, Helmut Haensel, Stephan Derow, Julian Vogt
  • Patent number: 9567526
    Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: February 14, 2017
    Assignee: MERCK PATENT GMBH
    Inventors: Martin Engel, Eveline Baron, Constanze Brocke, Helga Haas, Stephan Derow, Christoph Marten, Qiong Tong
  • Patent number: 9487702
    Abstract: The present invention relates to a liquid crystal (LC) medium comprising a polymerizable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in an LC display, especially in an LC display of the PSA (“polymer sustained alignment”) type, and to an LC display comprising the LC medium.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: November 8, 2016
    Assignee: MERCK PATENT GMBH
    Inventors: Eveline Baron, Julian Vogt, Qiong Tong, Stephan Derow
  • Patent number: 9428694
    Abstract: The present invention relates to a liquid crystal (LC) medium, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type, and to LC displays, especially PS or PSA displays, comprising said LC medium.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: August 30, 2016
    Assignee: Merck Patent GmbH
    Inventors: Martin Engel, Melanie Klasen-Memmer, Christoph Marten, Stephan Derow
  • Patent number: 9090823
    Abstract: The present invention relates to liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 28, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow
  • Patent number: 9045683
    Abstract: The present invention relates to 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 sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 2, 2015
    Assignee: Merck Patent GmbH
    Inventors: Andreas Taugerbeck, Achim Goetz, Stephan Derow
  • Publication number: 20150146155
    Abstract: The present invention relates to a liquid crystal (LC) medium, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type, and to LC displays, especially PS or PSA displays, comprising said LC medium.
    Type: Application
    Filed: May 21, 2013
    Publication date: May 28, 2015
    Applicant: Merck Patent GmbH
    Inventors: Martin Engel, Melanie Klasen-Memmer, Christoph Marten, Stephan Derow
  • Patent number: 9005721
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 14, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best
  • Patent number: 9005720
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: April 14, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best
  • Publication number: 20150070609
    Abstract: The present invention relates to a liquid crystal (LC) medium comprising a polymerizable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in an LC display, especially in an LC display of the PSA (“polymer sustained alignment”) type, and to an LC display comprising the LC medium.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 12, 2015
    Applicant: Merck Patent GmbH
    Inventors: Eveline BARON, Julian VOGT, Qiong TONG, Stephan DEROW
  • Publication number: 20140375943
    Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 25, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Martin ENGEL, Eveline BARON, Constanze BROCKE, Helga HAAS, Stephan DEROW, Christoph MARTEN, Qiong TONG
  • Publication number: 20140139786
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.
    Type: Application
    Filed: April 12, 2013
    Publication date: May 22, 2014
    Applicant: Merck Patent GmbH
    Inventors: Martin ENGEL, Andreas TAUGERBECK, Constanze BROCKE, Helmut HAENSEL, Stephan DEROW, Julian VOGT
  • Publication number: 20140022473
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Application
    Filed: July 3, 2013
    Publication date: January 23, 2014
    Applicant: MERCK PATENT GmbH
    Inventors: Achim GOETZ, Melanie KLASEN-MEMMER, Stephan DEROW, Sabine SCHOEN, Peter BEST
  • Publication number: 20130306910
    Abstract: The present invention relates to liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 21, 2013
    Applicant: Merck Patent GmbH
    Inventors: Achim GOETZ, Melanie KLASEN-MEMMER, Stephan DEROW
  • Patent number: 8586684
    Abstract: The invention relates to a conjugated copolymer comprising indenofluorene and triarylamine units and to its use in organic electronic devices.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: November 19, 2013
    Assignee: MERCK PATENT GmbH
    Inventors: Michael Heckmeier, William Mitchell, Weimin Zhang, David Sparrowe, Giles Lloyd, Steven Tierney, Stephan Derow
  • Patent number: 8545720
    Abstract: The present invention relates to liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: October 1, 2013
    Assignee: MERCK PATENT GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow
  • Publication number: 20130093975
    Abstract: The present invention relates to polymerisable 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 sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Application
    Filed: June 1, 2011
    Publication date: April 18, 2013
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Andreas Taugerbeck, Achim Goetz, Stephan Derow
  • Patent number: 8043670
    Abstract: The invention relates to new polymerizable mesogenic or liquid crystalline compounds comprising a terminal cyclohexylphenyl group wherein the phenyl group has polar substituents, to polymerizable mesogenic or liquid crystalline mixtures and anisotropic polymers prepared thereof, and to the use of the new compounds and the mixtures and polymers prepared thereof in optical and electrooptical devices, adhesives, synthetic resins with anisotropic mechanical properties, cosmetics, diagnostics, liquid crystal pigments, decorative and security applications, nonlinear optics, optical information storage, electronic devices like organic field effect transistors (FET or OFET) or electroluminescent devices.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: October 25, 2011
    Assignee: Merck Patent GmbH
    Inventors: Markus Klein, Stephan Derow
  • Patent number: 7936426
    Abstract: The invention relates to a transflective liquid crystal display (LCD) with a polymerised LC film comprising at least one photoisomerisable compound and having a pattern of regions with different retardation and/or different orientation of the LC material.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: May 3, 2011
    Assignee: Merck Patent GmbH
    Inventors: Richard Harding, Stephan Derow, Mark Verrall, Shirley Ann Marden, Rick Hamilton
  • Publication number: 20100272925
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Application
    Filed: April 23, 2010
    Publication date: October 28, 2010
    Applicant: MERCK PATENT GESELLSCHAFT
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best