Patents by Inventor Wolfgang Schade

Wolfgang Schade 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: 20220149389
    Abstract: A gas diffusion electrode may be provided comprising an electron conducting layer with a first side and an opposite second side, wherein the first side is provided with a microstructuring, wherein the gas diffusion electrode additionally has a hydrophobic membrane with a first side and an opposite second side, wherein the second side of the membrane is arranged on the first side of the electron conducting layer. A battery or an accumulator or an electrolyser or a galvanic cell may be provided with a gas diffusion electrode of this type.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Wolfgang Schade, Andreas Gabler
  • Publication number: 20220082558
    Abstract: An optical sensor has a substrate with first and second sides, one side being provided with first and second waveguides. The first and second waveguides have respective first and second measuring points along their respective lengths, each measuring point includes at least one interruption. The first measuring point, which belongs to the first waveguide, is functionalized by at least one coating while the second measuring point, which belongs to the second waveguide, is not functionalized by that same coating. The functionalized coating may include a substance (e.g., antibody) which corresponds to a pathogenic germ. A light source may simultaneously direct light into both waveguides and a light detector may simultaneously detect light signals exiting the waveguides. Differences in light intensities of the received light signals at one or more wavelengths, may reveal the presence of a pathogenic germ in a liquid sample applied to the first and second measurement points.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: WOLFGANG SCHADE, EIKE HÜBNER, VLADISLAV REIMER
  • Publication number: 20210316269
    Abstract: The invention relates to a continuous flow reactor having a wall which delimits a channel, wherein at least one sub-area is arranged in the channel that has microstructuring which includes individual structures, the diameter of which on a base is between about 10 ?m to about 100 ?m. The invention further relates to methods for reacting a gaseous or liquid educt under the action of a catalyst.
    Type: Application
    Filed: August 7, 2018
    Publication date: October 14, 2021
    Inventors: Andreas Gabler, Wolfgang Schade, Thomas Gimpel, Patrick Preuster, Peter Wasserscheid
  • Publication number: 20210208679
    Abstract: A fiber-optic sensor (1) is configured to detect curvature of an article (6). The sensor includes at least one light source (2), at least one optical fiber (4) and at least one receiver (3). The optical fiber (4) has at least one longitudinal portion (41, 42, 43) in which the refractive index for light at a predetermined wavelength is reduced with respect to the remaining longitudinal portions. A method for detecting curvature of an article such as a data glove (6) or an endoscope may utilize such a fiber-optic sensor.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Inventors: MARTIN ANGELMAHR, Wolfgang Schade
  • Patent number: 11056024
    Abstract: The invention relates to a seal containing a substrate which can be applied to an object to be sealed, so that said seal is changed when it is removed without authorization, wherein the substrate contains or comprises a polymer and/or a glass and at least one optical waveguide is arranged in the substrate, at least one first Bragg grating being arranged in said optical waveguide, wherein the substrate has a thickness of less than 200 ?m. The invention further relates to a system having a seal of this kind and having an evaluation device, and also to a sealing method.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: July 6, 2021
    Assignees: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V., OHB System AG
    Inventors: Wolfgang Schade, Günter Flachenecker, Markus Thiel, Rainer Rathje, Christian Gorecki, Andreas Thoma
  • Publication number: 20210141173
    Abstract: A device may be provided comprising at least one optoelectronic component and at least one optical waveguide, which are configured to transfer light between the optoelectronic component and the optical waveguide, wherein the optical waveguide contains at least one first longitudinal portion in which at least one Bragg grating is introduced, which has a grating constant which is variable along the longitudinal extent of said Bragg grating, and the optoelectronic component is arranged at a lateral distance from the optical waveguide. Alternatively or in addition, a method may be provided for transferring light between at least one optoelectronic component and at least one optical waveguide.
    Type: Application
    Filed: March 29, 2018
    Publication date: May 13, 2021
    Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Wolfgang SCHADE, Martin ANGELMAHR
  • Patent number: 10969541
    Abstract: A method for determining a curvature and/or torsion of an optical waveguide of a fibre-optic sensor, comprising at least two Bragg gratings introduced into the optical waveguide and extending through a common cross-sectional plane, situated in a radial direction, through the optical waveguide, wherein the Bragg gratings are introduced in the core and/or on the boundary between the core and the cladding and/or in an inner edge region of the cladding within an evanescence region of the light, the method comprising: providing reference data of intensities of reflected light portions of light coupled into the optical waveguide, in particular depending on known reference deformations of the optical waveguide, measuring at least one light intensity of reflected light portions of light coupled into the optical waveguide, wherein the optical waveguide has a deformation to be determined, and determining the deformation by comparing the light intensity with the reference data.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: April 6, 2021
    Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Photonik Inkubator GmbH
    Inventors: Wolfgang Schade, Martin Angelmahr, Christian Waltermann
  • Patent number: 10605975
    Abstract: A light distributor, a system consisting of a light distributor and an LED luminaire, and a method for producing a light distributor are provided. The light distributor may include a transparent main body having a light entrance area and a light exit area, at least one light-scattering structure with a changed refractive index inside the main body for scattering light, and at least one light-guiding structure with a changed refractive index inside the main body for guiding light. The light-scattering structure and the light-guiding structure may be produced by means of ultrashort pulse laser processing. The light-scattering structure and the light-guiding structure with a changed refractive index may be arranged in the main body.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: March 31, 2020
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Stefan Kontermann, Wolfgang Schade, Christian Winter
  • Patent number: 10557969
    Abstract: An optical component may be provided having a substrate with a first refractive index, in which space regions with a second refractive index are arranged, wherein the optical component contains at least one optical metamaterial, which contains a plurality of individual pixels each comprising a space region which has the first or the second refractive index, wherein the substrate contains at least one polymer. Further, a sensor may be provided with such an optical component and a process for measuring any of an expansion or a temperature.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: February 11, 2020
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Wolfgang Schade, Michael Köhring, Konrad Bethmann
  • Publication number: 20190339322
    Abstract: The invention relates to an optical insulation monitoring device for power cables, having at least one optical waveguide for transmitting an optical signal integrated into a polymer film. The polymer film is arranged in such a way that the radially outer surface of the cable is surrounded by the polymer film in at least one longitudinal portion of the cable. At least some of the optical waveguides can be designed as multimode waveguides. The optical waveguides may be integrated in a plurality of layers in the polymer film, the optical waveguides of a first layer being arranged in staggered fashion with respect to the optical waveguides of a second layer arranged above or below the first layer. In this way, at least a section of the polymer film in the film plane is completely covered by the optical waveguides without any unwanted crosstalk between adjacent optical waveguides resulting.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventor: Wolfgang Schade
  • Patent number: 10330866
    Abstract: An optical component comprising at least one first waveguide having a first core and a casing surrounding the first core, and comprising at least one second waveguide having a second core, wherein the first core and the second core are guided adjacent and at a distance to one another in a longitudinal section, and at least one Bragg grating is arranged in said longitudinal section, and at least the first core, the first casing the second core and the Bragg grating are arranged in a single substrate.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: June 25, 2019
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., BAKER HUGHES INTEQ GMBH
    Inventors: Wolfgang Schade, Michael Köhring, Christian Waltermann, Konrad Bethmann, Thomas Kruspe, Sebastian Jung, Gunnar Tackmann
  • Publication number: 20190170930
    Abstract: A method for determining a curvature and/or torsion of an optical waveguide of a fibre-optic sensor, comprising at least two Bragg gratings introduced into the optical waveguide and extending through a common cross-sectional plane, situated in a radial direction, through the optical waveguide, wherein the Bragg gratings are introduced in the core and/or on the boundary between the core and the cladding and/or in an inner edge region of the cladding within an evanescence region of the light, the method comprising: providing reference data of intensities of reflected light portions of light coupled into the optical waveguide, in particular depending on known reference deformations of the optical waveguide, measuring at least one light intensity of reflected light portions of light coupled into the optical waveguide, wherein the optical waveguide has a deformation to be determined, and determining the deformation by comparing the light intensity with the reference data.
    Type: Application
    Filed: August 8, 2017
    Publication date: June 6, 2019
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Photonik Inkubator GmbH
    Inventors: Wolfgang Schade, Martin Angelmahr, Christian Waltermann
  • Patent number: 10283821
    Abstract: The invention relates to a battery comprising a battery housing and at least one battery cell and at least one fiber optic sensor which has at least one waveguide with a core and a material surrounding said core. At least one fiber Bragg grating is introduced in the core and is mechanically coupled to the battery housing and/or to the battery cell in order to detect a change in size of the battery housing and/or of the battery cell. At least a second fiber Bragg grating is introduced in the core and is mechanically decoupled from the battery housing and the battery cell. The invention further relates to a method for the open loop or closed loop control of the charging and/or discharging of a battery, measurement values being acquired by at least one fiber optic sensor.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 7, 2019
    Assignees: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V., Stobich Technology GmbH
    Inventors: Wolfgang Schade, Jochen Stöbich
  • Patent number: 10247583
    Abstract: A fiber optic sensor may be provided comprising an optical waveguide having at least one first core and a cladding surrounding the first core, wherein the first core extends substantially over the entire length of the optical waveguide and at least one Bragg grating is introduced into the first core, wherein the Bragg grating has an elongated cross section, wherein the short semi-axis is smaller than the diameter of the first core and the center of gravity of the cross section of the at least one Bragg grating lies on the axis of symmetry of the optical waveguide. A method may be provided for determining torsion with such a sensor. A method for the production of such a sensor may be provided.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 2, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Wolfgang Schade, Christian Waltermann
  • Publication number: 20190066543
    Abstract: The invention relates to a seal containing a substrate which can be applied to an object to be sealed, so that said seal is changed when it is removed without authorization, wherein the substrate contains or comprises a polymer and/or a glass and at least one optical waveguide is arranged in the substrate, at least one first Bragg grating being arranged in said optical waveguide, wherein the substrate has a thickness of less than 200 ?m. The invention further relates to a system having a seal of this kind and having an evaluation device, and also to a sealing method.
    Type: Application
    Filed: February 20, 2017
    Publication date: February 28, 2019
    Inventors: Wolfgang Schade, Günter Flachenecker, Markus Thiel, Rainer Rathje, Christian Gorecki, Andreas Thoma
  • Patent number: 10184888
    Abstract: A device for determining a refractive index may be provided. The device including at least one waveguide having a core and a cladding surrounding the core, the cladding being at least partly removed in at least one first longitudinal portion and the core including at least one fiber Bragg grating in at least one second longitudinal portion. A method for determining a refractive index or a pressure change in a fluid may also provided. The method may include at least one waveguide having a core and a cladding surrounding the core, the cladding being at least partly removed in at least one longitudinal portion. A method for producing such a device may also be provided.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: January 22, 2019
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., TRUSTEES OF BOSTON UNIVERSITY
    Inventors: Wolfgang Schade, Jörg Burgmeier, Anna Lena Baumann, Björn Reinhard
  • Publication number: 20180329139
    Abstract: An optical component comprising at least one first waveguide having a first core and a casing surrounding the first core, and comprising at least one second waveguide having a second core, wherein the first core and the second core are guided adjacent and at a distance to one another in a longitudinal section, and at least one Bragg grating is arranged in said longitudinal section, and at least the first core, the first casing the second core and the Bragg grating are arranged in a single substrate.
    Type: Application
    Filed: November 14, 2016
    Publication date: November 15, 2018
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Baker Hughes Inteq GmbH
    Inventors: Wolfgang Schade, Michael Köhring, Christian Waltermann, Konrad Bethmann, Thomas Kruspe, Sebastian Jung, Gunnar Tackmann
  • Patent number: 10120131
    Abstract: The invention relates to a planar-optical element having at least one photonic component, which is arranged in at least one substrate containing or consisting of at least one polymer, wherein the substrate includes at least one first film layer having a first side and an opposite second side and a second film layer having a first side and an opposite second side, wherein the first side of the second film layer is arranged on the second side of the first film layer and at least the second film layer contains nanowires, at least in a subarea. The invention also relates to a corresponding sensor element and a method for the production thereof.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: November 6, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V
    Inventor: Wolfgang Schade
  • Patent number: 10067288
    Abstract: The invention relates to a method and a device for producing at least one fiber Bragg grating in a waveguide, wherein the waveguide has at least one core having a first refractive index and the fiber Bragg grating contains a plurality of spatial regions which each occupy a partial volume of the core and have a second refractive index, wherein the spatial regions are each produced by the action of laser radiation on a partial volume of the core, wherein the laser radiation contains a plurality of pulse trains each containing a plurality of individual pulses, wherein the time interval between successive individual pulses is smaller than the time interval between successive pulse trains and the time interval between successive individual pulses is chosen between 10 ns and 100 ps or the pulse train has a duration of 50 fs to 50 ps.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: September 4, 2018
    Assignee: Fraunhofer Gesellschaft Zur Forderung Der Angew. Forschung E.V.
    Inventors: Wolfgang Schade, Jörg Burgmeier
  • Publication number: 20180248233
    Abstract: The invention relates to a battery comprising a battery housing and at least one battery cell and at least one fiber optic sensor which has at least one waveguide with a core and a material surrounding said core. At least one fiber Bragg grating is introduced in the core and is mechanically coupled to the battery housing and/or to the battery cell in order to detect a change in size of the battery housing and/or of the battery cell. At least a second fiber Bragg grating is introduced in the core and is mechanically decoupled from the battery housing and the battery cell. The invention further relates to a method for the open loop or closed loop control of the charging and/or discharging of a battery, measurement values being acquired by at least one fiber optic sensor.
    Type: Application
    Filed: September 28, 2015
    Publication date: August 30, 2018
    Inventors: Wolfgang Schade, Jochen Stöbich