Patents by Inventor Stefan Kaiser

Stefan Kaiser 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: 20260029276
    Abstract: Calibration device for calibrating the sensitivity of an optical sensor arrangement, wherein the calibration device comprises a reflecting element with a reflecting region, said reflecting region comprising a multiplicity of reflecting faces varying in their orientation, a light source able to provide light and arranged such that said divergent light from the light source is able to illuminate said reflecting region, the optical sensor arrangement to be calibrated, wherein the optical sensor arrangement has an entrance opening for receiving incoming light and has at least a sensor for detecting light received through the entrance opening, and wherein said entrance opening is oriented towards said reflecting region, and a light tight casing preventing light of origin outside the calibration device from entering said entrance opening. The invention is further directed to a method.
    Type: Application
    Filed: July 16, 2025
    Publication date: January 29, 2026
    Inventor: Stefan KAISER
  • Patent number: 12519157
    Abstract: A housing for a traction battery of a hybrid or electric vehicle may include at least two housing parts and at least one coolant tube. The at least two housing parts may include a first housing part and a second housing part, which are separate from one another. Each of the housing parts may include a bottom and a plurality of side walls perpendicularly projecting from the bottom. The at least one coolant tube may be arranged between a first side wall of the first housing part and a second side wall of the second housing part. The at least two housing parts may each be glued to the at least one coolant tube via a respective adhesive layer of a plurality of adhesive layers such that the at least two housing parts are connected to one another via the at least one coolant tube.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: January 6, 2026
    Assignee: Mahle International GmbH
    Inventors: Davide Belardo, Ingo Haeusler, Dierk Hoffmann, Stefan Kaiser, Ruediger Knauss, Michael Mundorff, Nico Storz
  • Publication number: 20250364579
    Abstract: A membrane stack assembly for a humidifier in a fuel cell system is disclosed. The assembly includes a membrane stack having first and second fluid paths, allowing separate flow of two fluids while enabling moisture transfer through gas-tight, moisture-permeable membranes. The membranes are arranged in a spaced, stacked configuration along a stacking direction between two opposing end plates. At least one belt is provided, with a first belt section positioned on an outer side of the first end plate and a second belt section positioned on an outer side of the second end plate, securing the membrane stack between the end plates.
    Type: Application
    Filed: May 20, 2025
    Publication date: November 27, 2025
    Inventors: Ruediger Knauss, Stefan Kaiser, Niko Storz, Ingo Haeusler, Till Becker
  • Publication number: 20250346096
    Abstract: A device for a frameless vehicle door includes a counter bearing, a guide rail mounted thereon for a window regulator, and an adjusting device for inclining the guide rail along an adjusting direction oriented obliquely to the counter bearing. The adjusting device can be actuated by a tool. An access direction of the tool is oriented obliquely to the adjusting direction. The adjusting device has at least two adjusting components that can be moved relative to one another, namely, a threaded bolt oriented along the adjusting direction and at least one threaded nut screwed thereon. One of the adjusting components is fixed to the guide rail or the counter bearing for conjoint rotation, and the other is rotatably mounted. The rotatably mounted adjusting component has a drive contour and can be driven by to axially adjust the adjusting components with respect to one another along the adjusting direction.
    Type: Application
    Filed: June 14, 2023
    Publication date: November 13, 2025
    Inventors: Stefan KAISER, David KRAUSE, Andreas LIEB, Christoph LURZ, Eike RITTHALER, Bernd STROBEL, Frank WAGNER
  • Patent number: 12406836
    Abstract: The present invention relates to a device for plasma generation in a wide pressure range. The device comprises a first plasma source (1) in a first discharge chamber (2) in order to generate a first plasma in a low-pressure range, a second plasma source (3) in a second discharge chamber (4) in order to generate a second plasma in a high-pressure range, a first coupling element (5) for coupling the device to a system, in order to guide gas out of the system, and a second coupling element (6) for coupling the device to an optical sensor (12). The first discharge chamber (2) has a first optical connection with at least one optical lens (7, 8) to the second coupling element (6) and the second discharge chamber (4) has a second optical connection with at least one optical lens (8) to the second coupling element (6). This invention further relates to a system for optical gas analysis or gas detection and corresponding methods for plasma generation and for operating the system.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: September 2, 2025
    Assignee: INFICON AG
    Inventors: Astrid Waldner, Bernhard Andreaus, Urs Wälchli, Stefan Kaiser
  • Patent number: 12406940
    Abstract: A semiconductor chip having a crack stop structure is disclosed. The crack stop structure includes one or more recesses formed in the semiconductor chip. The one or more recesses extend adjacent to and along a periphery of the semiconductor chip. The one or more recesses are filled with a metal material. The metal material has an intrinsic tensile stress at room temperature that induces compressive stress in at least a region of the periphery of the semiconductor chip.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: September 2, 2025
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Sergey Ananiev, Andreas Bauer, Michael Goroll, Maria Heidenblut, Stefan Kaiser, Gunther Mackh, Kabula Mutamba, Reinhard Pufall, Georg Reuther
  • Publication number: 20250244271
    Abstract: A device (10) for determining a density of radicals (5) of a radical type in a measuring space (4) comprises a catalyst material (1) which can be brought into contact with the measuring space at least in the region of a first surface (15) of the catalyst material, wherein the catalyst material is suitable for triggering an exothermic recombination reaction of radicals of the radical type when radicals of the radical type come into contact with the first surface; a temperature actuator (2) in thermal contact with the first surface; and a temperature sensor (3) in thermal contact with the first surface. The device is designed to control the temperature actuator by means of a control signal in such a way that the measured value detected by the temperature sensor is kept at a setpoint value, and wherein the control signal can be evaluated in order to determine the density of radicals of the radical type in the measuring space.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 31, 2025
    Inventors: Bernhard ANDREAUS, Oskar UNTERMARZONER, Urs WÄLCHLI, Stefan KAISER, Martin WÜEST
  • Patent number: 12319195
    Abstract: A headlamp for a vehicle, having: an LED unit for providing a headlamp beam and a control unit for controlling the LED unit. To this end, provision is made according to the invention that the LED unit has a coding resistance that is designed to identify the headlamp as a left headlamp or as a right headlamp.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: June 3, 2025
    Assignee: Hella GmbH & Co. KGaA
    Inventors: Marius Dan Anghel, Stefan Kaiser, Fabian Kopka
  • Patent number: 12255364
    Abstract: A membrane assembly for a humidification device of a fuel cell system may include a membrane. The membrane may be permeable to water and impermeable to air. The membrane may extend in a flat form in a longitudinal direction and in a transverse direction that is transverse with respect to the longitudinal direction in an extent plane. The membrane may include in a height direction extending transversely with respect to the longitudinal direction and transversely with respect to the transverse direction a top side and a bottom side averted from the top side. The membrane may include an encircling outer margin in the extent plane. The outer margin may have an upper edge at the top side and a lower edge at the bottom side, between which an encircling face surface extends.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: March 18, 2025
    Assignee: Mahle International GmbH
    Inventors: Swen-Juri Bauer, Andreas Gruener, Stefan Kaiser, Aleksandar Radlovic, Lukas Schikora, Alexander Tuntukas
  • Publication number: 20250046589
    Abstract: A chamber, for bounding a plasma generation area in a vacuum pressure sensor, includes an electrically conductive casing element located radially on an outside relative to a central axis. The chamber includes electrically conductive wall elements arranged substantially perpendicular to the central axis and connected to the electrically conductive casing element. At least one of the wall elements has a first opening, through which the central axis extends. The electrically conductive casing element comprises at least a first and a second region. The first region is located closer to the central axis than the second region. The electrically conductive casing element is conical at least in part.
    Type: Application
    Filed: October 25, 2024
    Publication date: February 6, 2025
    Applicant: INFICON AG
    Inventors: Urs WÄLCHLI, Stefan KAISER, Bernhard ANDREAUS, Martin WÜEST, Astrid WALDNER, Michael TREFZER
  • Patent number: 12154771
    Abstract: Chamber (11, 12, 13) for bounding a plasma generation area (42) in a vacuum pressure sensor (40), wherein the chamber comprises an electrically conductive casing element (1, 1?, 1?) located radially on the outside relative to a central axis, wherein the chamber comprises electrically conductive wall elements (2, 2?, 2?) arranged substantially perpendicular to the central axis and connected to the casing element, wherein at least one of the wall elements has a first opening (3), through which the central axis extends, wherein the casing element comprises at least a first (B1) and a second region (B2), wherein the first region is located closer to the central axis than the second region. The invention further relates to a vacuum pressure sensor comprising the chamber.
    Type: Grant
    Filed: February 2, 2024
    Date of Patent: November 26, 2024
    Assignee: INFICON AG
    Inventors: Urs Wälchli, Stefan Kaiser, Bernhard Andreaus, Martin Wüest, Astrid Waldner, Michael Trefzer
  • Patent number: 12085467
    Abstract: The invention relates to a method 100 for determining a pressure in a vacuum system, wherein the method comprises the steps of: a) generating 101 a plasma in a sample chamber which is fluid-dynamically connected to the vacuum system and which is in electrical contact with a first electrode and a second electrode; b) measuring 102 a current intensity of an electrical current flowing through the plasma between the first electrode and the second electrode; c) measuring 103 a first radiation intensity of electromagnetic radiation of a first wavelength range which is emitted from the plasma, wherein the first wavelength range contains at least a first emission line of a first plasma species of a first chemical element; d) measuring 104 a second radiation intensity of electromagnetic radiation of a second wavelength range which is emitted from the plasma, wherein the second wavelength range contains a second emission line of the first plasma species of the first chemical element or of a second plasma species of
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: September 10, 2024
    Assignee: INFICON AG
    Inventors: Carsten Strietzel, Urs Wälchli, Stefan Kaiser, Christian Riesch, Bernhard Andreaus, Mario Weder
  • Publication number: 20240194465
    Abstract: Chamber (11, 12, 13) for bounding a plasma generation area (42) in a vacuum pressure sensor (40), wherein the chamber comprises an electrically conductive casing element (1, 1?, 1?) located radially on the outside relative to a central axis, wherein the chamber comprises electrically conductive wall elements (2, 2?, 2?) arranged substantially perpendicular to the central axis and connected to the casing element, wherein at least one of the wall elements has a first opening (3), through which the central axis extends, wherein the casing element comprises at least a first (B1) and a second region (B2), wherein the first region is located closer to the central axis than the second region. The invention further relates to a vacuum pressure sensor comprising the chamber.
    Type: Application
    Filed: February 2, 2024
    Publication date: June 13, 2024
    Inventors: Urs WÄLCHLI, Stefan KAISER, Bernhard ANDREAUS, Martin WÜEST, Astrid WALDNER, Michael TREFZER
  • Publication number: 20240177979
    Abstract: The present invention relates to a device for plasma generation in a wide pressure range. The device comprises a first plasma source (1) in a first discharge chamber (2) in order to generate a first plasma in a low-pressure range, a second plasma source (3) in a second discharge chamber (4) in order to generate a second plasma in a high-pressure range, a first coupling element (5) for coupling the device to a system, in order to guide gas out of the system, and a second coupling element (6) for coupling the device to an optical sensor (12). The first discharge chamber (2) has a first optical connection with at least one optical lens (7, 8) to the second coupling element (6) and the second discharge chamber (4) has a second optical connection with at least one optical lens (8) to the second coupling element (6). This invention further relates to a system for optical gas analysis or gas detection and corresponding methods for plasma generation and for operating the system.
    Type: Application
    Filed: March 21, 2022
    Publication date: May 30, 2024
    Inventors: Astrid WALDNER, Bernhard ANDREAUS, Urs WÄLCHLI, Stefan KAISER
  • Patent number: 11976992
    Abstract: A vacuum pressure sensor includes a vacuum-tight electrical feedthrough. The feedthrough has an electrically insulating insulator element with a through-opening, having a first boundary surface adjacent to the through-opening and a second boundary surface also adjacent to the through-opening and opposite to the first boundary surface, and an electrically conductive conductor element which extends through the through-opening and which is connected to the insulator element in a vacuum-tight manner along a circumferential line of the conductor element. The insulator element is transmissive to electromagnetic radiation in an optical wavelength range and the first boundary surface and/or the second boundary surface is formed as a curved surface.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 7, 2024
    Assignee: INFICON AG
    Inventors: Stefan Kaiser, Bernhard Andreaus
  • Publication number: 20240145408
    Abstract: An electronic chip is disclosed. In one example, the electronic chip comprises a substrate comprising a central portion and an edge portion around at least part of the central portion. An active region is arranged in the central portion. A crack guiding structure combined with a crack stop structure is provided, both being arranged in the edge portion.
    Type: Application
    Filed: October 11, 2023
    Publication date: May 2, 2024
    Applicant: Infineon Technologies AG
    Inventors: Maria HEIDENBLUT, Michael GOROLL, Stefan KAISER, Sergey ANANIEV, Sabine BOGUTH, Gunther MACKH, Andreas BAUER, Georg Michael REUTHER
  • Patent number: 11920824
    Abstract: A humidifying device for transferring water and/or water vapour from waste air of a waste air flow to supply air of a supply air flow is provided. In the compensating chamber of the housing of the humidifying device, at least one spreading means is arranged, which spreads apart the plate stack of the humidifying device and the housing cover closing the housing in the direction of the longitudinal axis.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: March 5, 2024
    Assignee: Mahle International GmbH
    Inventors: Swen-Juri Bauer, Andreas Gruener, Stefan Kaiser, Aleksandar Radlovic, Lukas Schikora, Alexander Tuntukas
  • Publication number: 20230073289
    Abstract: A housing for a traction battery of a hybrid or electric vehicle may include at least two housing parts and at least one coolant tube. The at least two housing parts may include a first housing part and a second housing part, which are separate from one another. Each of the housing parts may include a bottom and a plurality of side walls perpendicularly projecting from the bottom. The at least one coolant tube may be arranged between a first side wall of the first housing part and a second side wall of the second housing part. The at least two housing parts may each be glued to the at least one coolant tube via a respective adhesive layer of a plurality of adhesive layers such that the at least two housing parts are connected to one another via the at least one coolant tube.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 9, 2023
    Inventors: Davide Belardo, Ingo Haeusler, Dierk Hoffmann, Stefan Kaiser, Ruediger Knauss, Michael Mundorff, Nico Storz
  • Publication number: 20220388444
    Abstract: A headlamp for a vehicle, having: an LED unit for providing a headlamp beam and a control unit for controlling the LED unit. To this end, provision is made according to the invention that the LED unit has a coding resistance that is designed to identify the headlamp as a left headlamp or as a right headlamp.
    Type: Application
    Filed: August 17, 2022
    Publication date: December 8, 2022
    Applicant: HELLA GmbH & Co. KGaA
    Inventors: Marius Dan ANGHEL, Stefan KAISER, Fabian KOPKA
  • Publication number: 20220341802
    Abstract: Vacuum-tight electrical feedthrough 10, comprising an electrically insulating insulator element 2 having a through-opening 23, having a first boundary surface 21 adjacent to the through-opening, and having a second boundary surface 22 also adjacent to the through-opening and opposite to the first boundary surface, and an electrically conductive conductor element 1 which extends through the through-opening 23 and which is connected to the insulator element 2 in a vacuum-tight manner along a circumferential line of the conductor element 1, wherein the insulator element 2 is transmissive to electromagnetic radiation 25 in an optical wavelength range, and wherein the first boundary surface 21 and/or the second 22 boundary surface is formed as a curved surface, in particular as a convex or concave surface. The invention further relates to a vacuum pressure sensor having the vacuum-tight electrical feedthrough and a method for measuring a radiation intensity of electromagnetic radiation.
    Type: Application
    Filed: September 20, 2019
    Publication date: October 27, 2022
    Inventors: Stefan KAISER, Bernhard ANDREAUS