Patents by Inventor Jochen Pfister

Jochen Pfister 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: 11056652
    Abstract: The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. Furthermore, the present invention relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: July 6, 2021
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Stieber, Elvira Montenegro, Teresa Mujica-Fernaud, Frank Voges
  • Publication number: 20210016816
    Abstract: The invention relates to a transport device (100), more particularly a pram (102), having at least three wheels (116, 118, 120) for moving on a surface (180, 182) and having a handle (110) for a user, wherein at least one wheel of the at least three wheels is designed as a drive wheel (122, 124, 126), which can be driven under electromotive power by means of an associated electrical drive unit (140, 142, 144), in order to permit an at least partial electromotive support to the manual pushing or pulling operation of the transport device by the user on the surface, wherein the transport device is provided with at least one acceleration sensor (172, 174) and a predefined braking torque (?Fmot) can be applied periodically to the transport device in pushing or pulling operation by means of the electrical drive unit and wherein a control device (170) assigned to the at least one acceleration sensor is designed to analyse the acceleration values (ax) from the at least one acceleration sensor to detect a presence or
    Type: Application
    Filed: January 12, 2019
    Publication date: January 21, 2021
    Inventors: Bertram Schillinger, Jochen Pfister, Joerg Baur, Norbert Martin, Stefan Groh
  • Publication number: 20200303649
    Abstract: The invention relates to phenanthrene compounds comprising one or more arylamino groups. Said compounds can be used in electronic devices, in particular OLED's.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Inventors: Teresa Mujica-Fernaud, Elvira MONTENEGRO, Jochen PFISTER
  • Patent number: 10727413
    Abstract: The invention relates to phenanthrene compounds comprising one or more arylamino groups. Said compounds can be used in electronic devices, in particular OLED's.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: July 28, 2020
    Assignee: Merck Patent GmbH
    Inventors: Teresa Mujica-Fernaud, Elvira Montenegro, Jochen Pfister
  • Patent number: 10665790
    Abstract: The present application relates to a compound of a formula (I) which contains a spirobifluorene basic structure condensed onto a benzofuran unit. The application furthermore relates to a process for the preparation of the compound of the formula (I), and to the use of the compound of the formula (I) in an electronic device.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: May 26, 2020
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Voges, Elvira Montenegro, Teresa Mujica-Fernaud
  • Publication number: 20200083463
    Abstract: The present invention relates to iridium complexes suitable for use in organic electroluminescent devices, especially as emitters.
    Type: Application
    Filed: March 26, 2018
    Publication date: March 12, 2020
    Applicant: Merck Patent GmbH
    Inventors: Philipp Stoessel, Armin Auch, Falk May, Jochen Pfister
  • Patent number: 10573818
    Abstract: The present invention relates to compounds of formula (1) which are suitable for use in electronic devices, especially in organic electroluminescent devices.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: February 25, 2020
    Assignee: Merck Patent GmbH
    Inventors: Teresa Mujica-Fernaud, Elvira Montenegro, Jochen Pfister, Irina Martynova, Frank Stieber
  • Patent number: 10510960
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: December 17, 2019
    Assignee: Merck Patent GmbH
    Inventors: Teresa Mujica-Fernaud, Elvira Montenegro, Jochen Pfister
  • Publication number: 20190312203
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices, which comprise these compounds.
    Type: Application
    Filed: May 31, 2017
    Publication date: October 10, 2019
    Applicant: Merck Patent GmbH
    Inventors: Rémi ANÉMAIN, Teresa MUJICA-FERNAUD, Myoung-Gi JO, Hyeon-Hui KANG, Jochen PFISTER
  • Publication number: 20190288209
    Abstract: The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. Furthermore, the present invention relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 19, 2019
    Inventors: Jochen PFISTER, Frank STIEBER, Elvira MONTENEGRO, Teresa MUJICA-FERNAUD, Frank VOGES
  • Patent number: 10374168
    Abstract: The present application relates to heterospirobifluorene compounds, to a process for the preparation thereof, and to electronic devices, in particular organic electroluminescent devices, comprising the heterospirobifluorene derivatives.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: August 6, 2019
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Voges, Elvira Montenegro, Teresa Mujica-Fernaud
  • Patent number: 10355217
    Abstract: The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. Furthermore, the present invention relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: July 16, 2019
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Stieber, Elvira Montenegro, Teresa Mujica-Fernaud, Frank Voges
  • Patent number: 10224492
    Abstract: The present application relates to spirobifluorene derivatives of a formula (I), to the use thereof in electronic devices, especially in organic electroluminescent devices (OLEDs), where they may be used in hole-transporting function, and to processes for preparing said derivatives. The compounds have one or more properties selected from very good hole-conducting properties, very good electron-blocking properties, high glass transition temperature, high oxidation stability, good solubility and high thermal stability.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: March 5, 2019
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Stieber, Elvira Montenegro, Teresa Mujica-Fernaud
  • Publication number: 20180240979
    Abstract: The present application relates to a compound of a formula (I) which contains a spirobifluorene basic structure condensed onto a benzofuran unit. The application furthermore relates to a process for the preparation of the compound of the formula (I), and to the use of the compound of the formula (I) in an electronic device.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: JOCHEN PFISTER, Frank Voges, Elvira Montenegro, Teresa Mujica-Fernaud
  • Publication number: 20180219156
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Application
    Filed: June 28, 2016
    Publication date: August 2, 2018
    Inventors: TERESA MUJICA-FERNAUD, Elvira MONTENEGRO, Tobias GROSSMANN, Jochen PFISTER
  • Publication number: 20180212149
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Application
    Filed: July 1, 2016
    Publication date: July 26, 2018
    Inventors: Jochen PFISTER, Teresa MUJICA-FERNAUD, Elvira MONTENEGRO, Frank STIEBER, Frank VOGES
  • Patent number: 10032989
    Abstract: The present application relates to spirobifluorene derivatives of a formula (I), to the use thereof in electronic devices, and to processes for preparing said derivatives.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 24, 2018
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Teresa Mujica-Fernaud, Elvira Montenegro
  • Patent number: 9978950
    Abstract: The present application relates to a compound of a formula (I) which contains a spirobifluorene basic structure condensed onto a benzofuran unit. The application furthermore relates to a process for the preparation of the compound of the formula (I), and to the use of the compound of the formula (I) in an electronic device.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 22, 2018
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Voges, Elvira Montenegro, Teresa Mujica-Fernaud
  • Publication number: 20180026188
    Abstract: The present application relates to spirobifluorene derivatives of a formula (I), to the use thereof in electronic devices, and to processes for preparing said derivatives.
    Type: Application
    Filed: January 19, 2016
    Publication date: January 25, 2018
    Inventors: Jochen PFISTER, Teresa MUJICA-FERNAUD, Elvira MONTENEGRO
  • Publication number: 20180006245
    Abstract: The present application relates to spirobifluorene derivatives of a formula (I), to the use thereof in electronic devices, and to processes for preparing said derivatives.
    Type: Application
    Filed: December 8, 2015
    Publication date: January 4, 2018
    Inventors: Jochen PFISTER, Frank STIEBER, Elvira MONTENEGRO, Teresa MUJICA-FERNAUD