Patents by Inventor Martin Engel

Martin Engel 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).

  • Publication number: 20180030020
    Abstract: 4,6-difluorodibenzofuran derivatives of the formula I the preparation thereof, the use thereof as components in liquid-crystalline media and electro-optical display elements which contain the liquid-crystalline media.
    Type: Application
    Filed: September 20, 2017
    Publication date: February 1, 2018
    Applicant: Merck Patent GmbH
    Inventors: Volker Reiffenrath, Matthias Bremer, Rocco Fortte, Harald Hirschmann, Martin Engel
  • Patent number: 9835890
    Abstract: The present invention relates to a liquid crystal (LC) display of the FFS type comprising a liquid crystal medium with negative dielectric anisotropy and a di- or multireactive polymerizable compound, and an alignment layer inducing planar alignment in the LC medium.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: December 5, 2017
    Assignee: MERCK PATENG GMBH
    Inventors: Martin Engel, Helmut Haensel, Nico John
  • Patent number: 9822302
    Abstract: The compounds of the formula I, and a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formulae II-1 to II-4, in which the parameters have the meanings defined herein, are suitable for use in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: November 21, 2017
    Assignee: Merck Patent GmbH
    Inventors: Martin Engel, Thorsten Kodek, Ingo Almeroth, Rocco Fortte
  • Patent number: 9824873
    Abstract: The invention relates to an ionization chamber for connection to a mass spectrometer. The ionization chamber has a temperature-control block with a gas inlet and a gas channel which starts at the gas inlet and leads into a gas outlet. A temperature-control device is positioned along the gas channel and ensures that a gas flowing in the gas channel is brought to a specific temperature, i.e. it is heated or cooled, before it enters the ionization chamber. The temperature-control block has a formed part into which a structure of the gas channel is incorporated and which is fabricated by means of a sol-gel process, for example out of a glass or ceramic material.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 21, 2017
    Inventors: Andreas Brekenfeld, Martin Engel
  • 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
  • Publication number: 20160333270
    Abstract: The compounds of the formula I, and a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formulae II-1 to II-4, in which the parameters have the meanings defined herein, are suitable for use in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Applicant: Merck Patent GmbH
    Inventors: Martin ENGEL, Thorsten KODEK, Ingo ALMEROTH, Rocco FORTTE
  • Publication number: 20160264865
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula IA, IB, IC, ID and/or IE, in which Z1 denotes a single bond, —CH2CH2—, —CH?CH—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO—, —OCO—, —C2F4—, —C?C—, —CF?CF— or —CH?CHCHO—, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, UB-FFS, PS-FFS, PS-IPS or IPS effect.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Applicant: MERCK PATENT GmbH
    Inventors: Harald HIRSCHMANN, Monika BAUER, Martina WINDHORST, Martin ENGEL
  • 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
  • Publication number: 20160197275
    Abstract: The present invention relates to organic electroluminescent devices which comprise aromatic ring systems with two or three condensed rings as emitter materials, and to their possible uses.
    Type: Application
    Filed: November 27, 2013
    Publication date: July 7, 2016
    Inventors: Junyou PAN, Martin ENGEL, Herwig BUCHHOLZ
  • Publication number: 20160159763
    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: February 3, 2016
    Publication date: June 9, 2016
    Applicant: MERCK PATENT GMBH
    Inventors: Andreas TAUGERBECK, Achim GOETZ, Alexander HAHN, Martin ENGEL
  • Publication number: 20160090533
    Abstract: Liquid-crystalline medium which comprises at least one compound of the formula I, in which R1 and R1* each, independently of one another, denote an alkyl or alkoxy radical having 1 to 15 C atoms, where, in addition, one or more CH2 groups in these radicals may each be replaced, independently of one another, by —C?C—, —CF2O—, —OCF2—, —CH?CH—, ?—O—, —CO—O—, —O—CO— in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen, L1 and L2 each, independently of one another, denote F, Cl, CF3 or CHF2, and the use thereof for an active-matrix display, in particular based on the VA, PSA, PA-VA, PS-VA, PALC, IPS, PS-IPS, FFS or PS-FFS effect.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 31, 2016
    Applicant: MERCK PATENT GMBH
    Inventors: Harald HIRSCHMANN, Monika BAUER, Martina WINDHORST, Marcus REUTER, Matthias BREMER, Rocco FORTTE, Volker REIFFENRATH, Martin ENGEL, Nico JOHN, Christoph MARTEN
  • Publication number: 20160086784
    Abstract: The invention relates to an ionization chamber for connection to a mass spectrometer. The ionization chamber has a temperature-control block with a gas inlet and a gas channel which starts at the gas inlet and leads into a gas outlet. A temperature-control device is positioned along the gas channel and ensures that a gas flowing in the gas channel is brought to a specific temperature, i.e. it is heated or cooled, before it enters the ionization chamber. The temperature-control block has a formed part into which a structure of the gas channel is incorporated and which is fabricated by means of a sol-gel process, for example out of a glass or ceramic material.
    Type: Application
    Filed: August 14, 2015
    Publication date: March 24, 2016
    Inventors: Andreas BREKENFELD, Martin ENGEL
  • Patent number: 9279082
    Abstract: 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: December 27, 2011
    Date of Patent: March 8, 2016
    Assignee: Merck Patent GmbH
    Inventors: Andreas Taugerbeck, Achim Goetz, Alexander Hahn, Martin Engel
  • Publication number: 20160060528
    Abstract: The invention relates to compounds of the formula I, in which X1, X2, Sp, and R are as defined herein, and to the use thereof in liquid-crystal media, but also to the use of these liquid-crystal media in liquid-crystal displays, and also to liquid-crystal displays of this type per se.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 3, 2016
    Applicant: MERCK PATENT GMBH
    Inventors: Achim GOETZ, Rocco FORTTE, Martin ENGEL, Sabrina MAAG, Ingo ALMEROTH, Thomas MERGNER, Thorsten KODEK, Detlef PAULUTH
  • Publication number: 20150340612
    Abstract: The invention relates to organic electroluminescent devices comprising organic compounds with a double or triple bond, to which at least one aromatic ring is bonded, as emitter compounds. The invention also relates to possible uses of said devices.
    Type: Application
    Filed: December 9, 2013
    Publication date: November 26, 2015
    Applicant: MERCK PATENT GMBH
    Inventors: JUNYOU PAN, Martin ENGEL, Herwig BUCHHOLZ
  • Publication number: 20150270489
    Abstract: The invention concerns polymers, electroluminescence devices, compositions and their use.
    Type: Application
    Filed: September 18, 2013
    Publication date: September 24, 2015
    Inventors: Junyou Pan, Martin Engel, Nils Koenen, Aurélie Ludemann
  • Publication number: 20150259602
    Abstract: 4,6-difluorodibenzofuran derivatives of the formula I the preparation thereof, the use thereof as components in liquid-crystalline media and electro-optical display elements which contain the liquid-crystalline media.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 17, 2015
    Applicant: MERCK PATENT GMBH
    Inventors: Volker REIFFENRATH, Matthias BREMER, Rocco FORTTE, Harald HIRSCHMANN, Martin ENGEL
  • Patent number: 9133395
    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 PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 15, 2015
    Assignee: MERCK PATENT GMBH
    Inventors: Andreas Taugerbeck, Martin Engel
  • Publication number: 20150205158
    Abstract: The present invention relates to a liquid crystal (LC) display of the FFS type comprising a liquid crystal medium with negative dielectric anisotropy and a di- or multireactive polymerizable compound, and an alignment layer inducing planar alignment in the LC medium.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 23, 2015
    Applicant: Merck Patent GmbH
    Inventors: Martin ENGEL, Helmut HAENSEL, Nico JOHN
  • Patent number: 9062693
    Abstract: A fluid operated actuator (100) is provided. The fluid operated actuator (100) includes a body (101) forming a piston bore (201). A piston (111) is movable within the piston bore (201). The fluid operated actuator (100) also includes a valve unit (105) coupled to the body (101) and including a fluid inlet port (217), a fluid exhaust port (220), and a valve member (214) configured to selectively open a fluid flow path between the fluid inlet port (217) and the piston bore (201) and between the exhaust port (220) and the piston bore (201). The fluid operated actuator (100) can also include a control unit (106) coupled to the body (101) and the valve unit (105). The control unit (106) can include a pilot input port (317a) in fluid communication with the fluid inlet port (217). The control unit (106) can also include first and second pilot output ports (317b, 317c) in fluid communication with the valve member (214).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: June 23, 2015
    Assignee: Norgren GmbH
    Inventors: Martin Engels, Roland Verhulsdonk, Ralph Reidel