Patents by Inventor Steffen Schmidt

Steffen Schmidt 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: 20250194184
    Abstract: A power semiconductor device includes: a semiconductor body with a drift region of a first conductivity type and load terminals at opposite first and second sides of the semiconductor body. The power semiconductor device is configured to conduct a forward load current between the load terminals. A trench grid structure extending from the first side into the semiconductor body includes a plurality of macro cells. Each macro cell includes at least one first type micro cell configured for the forward load current conduction and a number of second type micro cells not configured for the forward load current conduction. Each micro cell is laterally confined by a respective portion of the trench grid structure. In each macro cell, the number of the second type micro cells is equal to or greater than the number of first type micro cells.
    Type: Application
    Filed: December 4, 2024
    Publication date: June 12, 2025
    Inventors: Alexander Philippou, Thorsten Arnold, Steffen Schmidt, Franz Josef Niedernostheide
  • Patent number: 12312420
    Abstract: A process for producing a crosslinked cellulose ether including contacting an activated cellulose material with (i) an aqueous crosslinking agent emulsion, wherein the aqueous crosslinking agent emulsion is a mixture of (ia) at least one crosslinking agent; (ib) water; and (ic) any other optional components desired; and (ii) at least one etherification reagent; wherein the aqueous crosslinking agent emulsion (i) and the at least one etherification reagent (ii) react with the activated cellulose material to form the crosslinked cellulose ether; and a crosslinked cellulose ether produced by the above process.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: May 27, 2025
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Alexandra Hild, Jöerg Neubauer, Steffen Schmidt, Robert Baumann
  • Publication number: 20240336920
    Abstract: Described are antisense oligonucleotides comprising one or more ?-L-threofuranosyl (TNA) nucleosides as well as methods to modulate the properties of antisense oligonucleotides by the introduction of TNA nucleosides. These are particularly applicable for antisense gapmer oligonucleotides.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 10, 2024
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Jessica Marine Aurore BASTIEN, Konrad BLEICHER, Helle CHRISTIANSEN, Erich KOLLER, Meiling LI, Helle NYMARK, Adrian SCHAEUBLIN, Steffen SCHMIDT
  • Patent number: 12087723
    Abstract: A semiconductor assembly includes a substrate including a metal die attach surface, a semiconductor die that is arranged on the substrate, the semiconductor die being configured as a power semiconductor device and comprising a semiconductor body, a rear side metallization, and a front side layer stack, the front side layer stack comprising a front side metallization and a contaminant protection layer that is between the front side metallization and the semiconductor body, and a diffusion soldered joint between the metal die attach surface and the rear side metallization, the diffusion soldered joint comprising one or more intermetallic phases throughout the diffusion soldered joint, wherein the contaminant protection layer is configured to prevent transmission of contaminants into the semiconductor body.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: September 10, 2024
    Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Victor Verdugo, Katrin Schmidt, Steffen Schmidt, Markus Schmitt
  • Patent number: 11898145
    Abstract: The present disclosure provides antisense oligonucleotides targeting Regulator of telomere elongation helicase 1 (RTEL1). The disclosure also provides, enhanced antisense oligonucleotides targeting RTEL1 for use in treating and/or preventing a hepatitis B virus (HBV) infection. Also disclosed are pharmaceutical compositions and their use.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: February 13, 2024
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Erik Funder, Natascha Hruschka, Susanne Kammler, Erich Koller, Brian Leonard, Souphalone Luangsay, Susanne Mohr, Tobias Nilsson, Søren Ottosen, Lykke Pedersen, Søren V. Rasmussen, Steffen Schmidt, Sabine Sewing, Daniel Turley, Johanna Marie Walther
  • Publication number: 20230197674
    Abstract: A semiconductor assembly includes a substrate including a metal die attach surface, a semiconductor die that is arranged on the substrate, the semiconductor die being configured as a power semiconductor device and comprising a semiconductor body, a rear side metallization, and a front side layer stack, the front side layer stack comprising a front side metallization and a contaminant protection layer that is between the front side metallization and the semiconductor body, and a diffusion soldered joint between the metal die attach surface and the rear side metallization, the diffusion soldered joint comprising one or more intermetallic phases throughout the diffusion soldered joint, wherein the contaminant protection layer is configured to prevent transmission of contaminants into the semiconductor body.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 22, 2023
    Inventors: Victor Verdugo, Katrin Schmidt, Steffen Schmidt, Markus Schmitt
  • Patent number: 11610861
    Abstract: A method of soldering elements together includes providing a substrate having a metal die attach surface, providing a semiconductor die that is configured as a power semiconductor device and having a semiconductor body, a rear side metallization, and a front side layer stack, the front side layer stack having a front side metallization and a contaminant protection layer, arranging the semiconductor die on the substrate with a region of solder material between the die attach surface and the rear side metallization, and performing a soldering process that reflows the region of solder material to form a soldered joint between the metal die attach surface and the rear side metallization, wherein the soldering process comprises applying mechanical pressure to the front side metallization.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: March 21, 2023
    Assignee: Infineon Technologies Austria AG
    Inventors: Victor Verdugo, Katrin Schmidt, Steffen Schmidt, Markus Schmitt
  • Publication number: 20220251556
    Abstract: Enhanced antisense oligonucleotides targeting Regulator of telomere elongation helicase 1 (RTEL1), leading to modulation of the expression of RTEL1 or modulation of RTEL1 activity are provided. This disclosure relates to the use of enhanced antisense oligonucleotides targeting RTEL1 for use in treating and/or preventing a hepatitis B virus (HBV) infection, in particular a chronic HBV infection. This disclosure further relates to the use of the enhanced antisense oligonucleotides targeting RTEL1 for destabilizing cccDNA, such as HBV cccDNA. A pharmaceutical composition and its use in the treatment and/or prevention of a HBV infection is also described.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 11, 2022
    Applicant: HOFFMANN-LA ROCHE INC.
    Inventors: Erik FUNDER, Natascha HRUSCHKA, Susanne KAMMLER, Erich KOLLER, Brian LEONARD, Souphalone LUANGSAY, Susanne MOHR, Tobias NILSSON, Søren OTTOSEN, Lykke PEDERSEN, Søren V. RASMUSSEN, Steffen SCHMIDT, Sabine SEWING, Daniel TURLEY, Johanna Marie WALTHER
  • Publication number: 20220106411
    Abstract: A process for producing a crosslinked cellulose ether including contacting an activated cellulose material with (i) an aqueous crosslinking agent emulsion, wherein the aqueous crosslinking agent emulsion is a mixture of (ia) at least one crosslinking agent; (ib) water; and (ic) any other optional components desired; and (ii) at least one etherification reagent; wherein the aqueous crosslinking agent emulsion (i) and the at least one etherification reagent (ii) react with the activated cellulose material to form the crosslinked cellulose ether; and a crosslinked cellulose ether produced by the above process.
    Type: Application
    Filed: April 17, 2020
    Publication date: April 7, 2022
    Inventors: Alexandra Hild, Jöerg Neubauer, Steffen Schmidt, Robert Baumann
  • Publication number: 20220084981
    Abstract: A method of soldering elements together includes providing a substrate having a metal die attach surface, providing a semiconductor die that is configured as a power semiconductor device and having a semiconductor body, a rear side metallization, and a front side layer stack, the front side layer stack having a front side metallization and a contaminant protection layer, arranging the semiconductor die on the substrate with a region of solder material between the die attach surface and the rear side metallization, and performing a soldering process that reflows the region of solder material to form a soldered joint between the metal die attach surface and the rear side metallization, wherein the soldering process comprises applying mechanical pressure to the front side metallization, and wherein the contaminant protection layer is configured to prevent transmission of contaminants into the semiconductor body after the soldering process is completed.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 17, 2022
    Inventors: Victor Verdugo, Katrin Schmidt, Steffen Schmidt, Markus Schmitt
  • Patent number: 11251266
    Abstract: A power semiconductor device includes a semiconductor body having a drift region of a first conductivity type inside an active region. An edge termination region includes: a guard region of a second conductivity type at a front side of the semiconductor body and surrounding the active region; and a field plate trench structure extending vertically into the body from the front side and at least partially filled with a conductive material that is electrically connected with the guard region and insulated from the body external of the guard region. A first portion of the field plate trench structure at least partially extends into the guard region and is at least partially arranged below a metal layer arranged at the front side. A second portion of the field plate trench structure extends outside of the guard region and surrounds the active area, the metal layer not extending above the second portion.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 15, 2022
    Assignee: Infineon Technologies AG
    Inventors: Philip Christoph Brandt, Manfred Pfaffenlehner, Frank Dieter Pfirsch, Francisco Javier Santos Rodriguez, Steffen Schmidt, Frank Umbach
  • Publication number: 20210095277
    Abstract: The present invention relates to antisense LNA oligonucleotides (oligomers) complementary to SREBF1 pre-mRNA intron and exon sequences, which are capable of inhibiting the expression of SREBP1 protein. Inhibition of SREBF1 expression is beneficial for a range of medical disorders including cardiovascular disease, type 2 diabetes, fatty liver, metabolic diseases, and cancer.
    Type: Application
    Filed: January 16, 2019
    Publication date: April 1, 2021
    Applicant: Roche Innovation Center Copenhagen A/S
    Inventors: Eva Marie W. LINDHOLM, Steffen SCHMIDT
  • Publication number: 20200266269
    Abstract: A power semiconductor device includes a semiconductor body having a drift region of a first conductivity type inside an active region. An edge termination region includes: a guard region of a second conductivity type at a front side of the semiconductor body and surrounding the active region; and a field plate trench structure extending vertically into the body from the front side and at least partially filled with a conductive material that is electrically connected with the guard region and insulated from the body external of the guard region. A first portion of the field plate trench structure at least partially extends into the guard region and is at least partially arranged below a metal layer arranged at the front side. A second portion of the field plate trench structure extends outside of the guard region and surrounds the active area, the metal layer not extending above the second portion.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Inventors: Philip Christoph Brandt, Manfred Pfaffenlehner, Frank Dieter Pfirsch, Francisco Javier Santos Rodriguez, Steffen Schmidt, Frank Umbach
  • Patent number: 10738792
    Abstract: A vortex pump with an impeller is provided. The impeller includes blades for delivering solids-containing media which are arranged in bundles. The spacing the blades in the bundles is smaller than the spacing of the bundles from each other.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: August 11, 2020
    Assignee: KSB Aktiengesellschaft
    Inventors: Alexander Christ, Jochen Fritz, Christoph Jaeger, Toni Klemm, Steffen Schmidt, Rolf Witzel
  • Publication number: 20200216845
    Abstract: The present invention relates to antisense oligonucleotides that are capable of modulating expression of RelA in a target cell. The oligonucleotides are complementary to mammalian RELA pre-m RNA intron sequence. The present invention further relates to conjugates of the oligonucleotide and pharmaceutical compositions and methods for treatment of cancer, inflammation or autoimmune diseases using the oligonucleotide.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 9, 2020
    Inventors: Eva Marie W. LINDHOLM, Lykke PEDERSEN, Steffen SCHMIDT
  • Publication number: 20190367920
    Abstract: The present invention relates to antisense oligonucleotides that are capable of modulating expression of NF-?B1 in a target cell. The oligonucleotides are complementary to mammalian NFKB1 pre-mRNA intron sequence. The present invention further relates to conjugates of the oligonucleotide and pharmaceutical compositions and methods for treatment of cancer, inflammation or autoimmune diseases using the oligonucleotide.
    Type: Application
    Filed: January 10, 2018
    Publication date: December 5, 2019
    Applicant: Roche Innovation Center Copenhagen A/S
    Inventors: Eva Marie W. LINDHOLM, Lykke PEDERSEN, Steffen SCHMIDT
  • Publication number: 20190345496
    Abstract: The present invention relates to antisense oligonucleotides that are capable of modulating expression of RelB in a target cell. The oligonucleotides are complementary to mammalian RELB pre-mRNA sequence. The present invention further relates to conjugates of the oligonucleotide and pharmaceutical compositions and methods for treatment of cancer, inflammation or autoimmune diseases using the oligonucleotide.
    Type: Application
    Filed: January 10, 2018
    Publication date: November 14, 2019
    Inventors: Eva Marie W. LINDHOLM, Lykke PEDERSEN, Steffen SCHMIDT
  • Publication number: 20190345495
    Abstract: The present invention relates to antisense oligonucleotides that are capable of modulating expression of NF-kB2 in a target cell. The oligonucleotides are complementary to mammalian NFKB2 pre-mRNA sequence. The present invention further relates to conjugates of the oligonucleotide and pharmaceutical compositions and methods for treatment of cancer, inflammation or autoimmune diseases using the oligonucleotide.
    Type: Application
    Filed: January 10, 2018
    Publication date: November 14, 2019
    Inventors: Eva Marie W. LINDHOLM, Lykke PEDERSEN, Steffen SCHMIDT
  • Publication number: 20190338286
    Abstract: The present invention relates to antisense oligonucleotides that are capable of modulating expression of c-Rel in a target cell. The present invention further relates to conjugates of the oligonucleotide and pharmaceutical compositions and methods for treatment of cancer, inflammation or autoimmune diseases using the oligonucleotide.
    Type: Application
    Filed: January 10, 2018
    Publication date: November 7, 2019
    Inventors: Eva Marie W. LINDHOLM, Lykke PEDERSEN, Steffen SCHMIDT
  • Publication number: 20180187692
    Abstract: A vortex pump with an impeller is provided. The impeller includes blades for delivering solids-containing media which are arranged in bundles. The spacing the blades in the bundles is smaller than the spacing of the bundles from each other.
    Type: Application
    Filed: June 27, 2016
    Publication date: July 5, 2018
    Inventors: Alexander CHRIST, Jochen FRITZ, Christoph JAEGER, Toni KLEMM, Steffen SCHMIDT, Rolf WITZEL