Patents by Inventor Ulf HOFFMANN

Ulf HOFFMANN 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: 11713277
    Abstract: Glass or glass ceramic substrates are provided that have a decorative coating. Methods for coating a glass or glass ceramic substrate with a decorative coating are also provided. In the method, a first, textured layer is applied which is filled with a further layer, so that a layer material of graded composition is formed.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: August 1, 2023
    Assignee: SCHOTT AG
    Inventors: Silke Knoche, Angelina Milanovska, Lutz Klippe, Ulf Hoffmann, Ella Ruhl
  • Patent number: 11639779
    Abstract: The present disclosure relates to products and methods for modifying the reflection of a light source in a fireplace and other products.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 2, 2023
    Assignees: SCHOTT AG, SCHOTT CORPORATION
    Inventors: Theodore A. Wegert, Zachary D. Wimmer, Falk Gabel, Ulf Hoffmann, Thomas Zenker, Thomas Emmerich Maldonado
  • Patent number: 11160370
    Abstract: A glass-ceramic cooktop is provided that is made of glass-ceramic material with a flat upper side and an underside. The glass-ceramic material has transmittance values of greater than 0.1% in the visible light range in the total wavelength region greater than 420 nm, a light transmittance in the visible range of 0.8-2.5%, and a transmittance of 0-85% in the infrared at 1600 nm, and wherein the glass-ceramic material has high quartz mixed crystals as the prevalent crystal phase. The underside is flat, unstructured, and coplanar with the upper side.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: November 2, 2021
    Assignee: SCHOTT AG
    Inventors: Birgit Doerk, Evelin Weiss, Thomas Zenker, Ulf Hoffmann, Silke Knoche, Martin Taplan, Friedrich Siebers, Thomas Kraus, Lutz Klippe, Wolfgang Schmidbauer
  • Publication number: 20190277468
    Abstract: The present disclosure relates to products and methods for modifying the reflection of a light source in a fireplace and other products.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Applicants: SCHOTT Corporation, SCHOTT AG
    Inventors: Theodore A. Wegert, Zachary D. Wimmer, Falk Gabel, Ulf Hoffmann, Thomas Zenker, Thomas Emmerich Maldonado
  • Publication number: 20190241467
    Abstract: Glass or glass ceramic substrates are provided that have a decorative coating. Methods for coating a glass or glass ceramic substrate with a decorative coating are also provided. In the method, a first, textured layer is applied which is filled with a further layer, so that a layer material of graded composition is formed.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Applicant: SCHOTT AG
    Inventors: Silke Knoche, Angelina Milanovska, Lutz Klippe, Ulf Hoffmann, Ella Ruhl
  • Patent number: 10308548
    Abstract: Glass or glass ceramic substrates are provided that have a decorative coating. Methods for coating a glass or glass ceramic substrate with a decorative coating are also provided. In the method, a first, textured layer is applied which is filled with a further layer, so that a layer material of graded composition is formed.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: June 4, 2019
    Assignee: SCHOTT AG
    Inventors: Silke Knoche, Angelina Milanovska, Lutz Klippe, Ulf Hoffmann, Ella Ruhl
  • Publication number: 20180325258
    Abstract: A glass-ceramic cooktop is provided that is made of glass-ceramic material with a flat upper side and an underside. The glass-ceramic material has transmittance values of greater than 0.1% in the visible light range in the total wavelength region greater than 420 nm, a light transmittance in the visible range of 0.8-2.5%, and a transmittance of 0-85% in the infrared at 1600 nm, and wherein the glass-ceramic material has high quartz mixed crystals as the prevalent crystal phase. The underside is flat, unstructured, and coplanar with the upper side.
    Type: Application
    Filed: July 23, 2018
    Publication date: November 15, 2018
    Applicant: SCHOTT AG
    Inventors: Birgit DOERK, Evelin WEISS, Thomas ZENKER, Ulf HOFFMANN, Silke KNOCHE, Martin TAPLAN, Friedrich SIEBERS, Thomas KRAUS, Lutz KLIPPE, Wolfgang SCHMIDBAUER
  • Patent number: 10028580
    Abstract: A glass-ceramic cooktop is provided that is made of glass-ceramic material with a flat upper side and an underside. The glass-ceramic material has transmittance values of greater than 0.1% in the visible light range in the total wavelength region greater than 420 nm, a light transmittance in the visible range of 0.8-2.5%, and a transmittance of 0-85% in the infrared at 1600 nm, and wherein the glass-ceramic material has high quartz mixed crystals as the prevalent crystal phase. The underside is flat, unstructured, and coplanar with the upper side.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: July 24, 2018
    Assignee: SCHOTT AG
    Inventors: Birgit Doerk, Evelin Weiss, Thomas Zenker, Ulf Hoffmann, Silke Knoche, Martin Taplan, Friedrich Siebers, Thomas Kraus, Lutz Klippe, Wolfgang Schmidbauer
  • Publication number: 20150101849
    Abstract: A transparent electrical conductor with a transparent substrate and an electrically conductive layer on the substrate are provided. The conductive layer has a plurality of electrically conductive nanoscale additives. The additives are in electrically conductive contact with one another, in order to form the electrically conductive layer. The substrate is formed from a glass or glass-ceramic material or a composite material having a glass and/or glass-ceramic. The additives are embedded in a matrix layer at least in some regions. The matrix layer is formed by a transparent matrix material. In order to make such a transparent electrical conductor useful, particularly for application in a display, as a touch sensor, or the like for cooking surfaces, the transparent electrical conductor exhibits a temperature resistance of at least 140° C. The additives are dispersed in a matrix material, which is applied as a coating material onto the substrate in one coating step.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 16, 2015
    Inventors: Matthias Bockmeyer, Ulf Hoffmann, Franziska Riethmueller
  • Publication number: 20150037539
    Abstract: Glass or glass ceramic substrates are provided that have a decorative coating. Methods for coating a glass or glass ceramic substrate with a decorative coating are also provided. In the method, a first, textured layer is applied which is filled with a further layer, so that a layer material of graded composition is formed.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Inventors: Silke Knoche, Angelina Milanovska, Lutz Klippe, Ulf Hoffmann, Ella Ruhl
  • Patent number: 8877327
    Abstract: A glass or glass ceramic article is provided that has a glass or glass ceramic substrate with a decorative coating. The decorative coating includes a decoration layer and a sealing layer. The decoration layer is applied to at least some surface portions of the glass or glass ceramic substrate, and the sealing layer is applied to at least portions of the decoration layer. The decoration layer is a cured sol-gel coating having inorganic solid particles, and the sealing layer is a cured silicone coating comprising inorganic solid particles. Methods for producing such glass or glass ceramic articles are also provided.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: November 4, 2014
    Assignee: Schott AG
    Inventors: Ulf Hoffmann, Ella Ruhl, Angelina Milanovska, Matthias Bockmeyer
  • Publication number: 20130266781
    Abstract: A glass or glass ceramic article is provided that has a glass or glass ceramic substrate with a decorative coating. The decorative coating includes a decoration layer and a sealing layer. The decoration layer is applied to at least some surface portions of the glass or glass ceramic substrate, and the sealing layer is applied to at least portions of the decoration layer. The decoration layer is a cured sol-gel coating having inorganic solid particles, and the sealing layer is a cured silicone coating comprising inorganic solid particles. Methods for producing such glass or glass ceramic articles are also provided.
    Type: Application
    Filed: July 20, 2011
    Publication date: October 10, 2013
    Applicant: SCHOTT AG
    Inventors: Ulf Hoffmann, Ella Ruhl, Angelina Milanovska, Matthias Bockmeyer
  • Publication number: 20130140293
    Abstract: A glass-ceramic cooktop is provided that is made of glass-ceramic material with a flat upper side and an underside. The glass-ceramic material has transmittance values of greater than 0.1% in the visible light range in the total wavelength region greater than 420 nm, a light transmittance in the visible range of 0.8-2.5%, and a transmittance of 0-85% in the infrared at 1600 nm, and wherein the glass-ceramic material has high quartz mixed crystals as the prevalent crystal phase. The underside is flat, unstructured, and coplanar with the upper side.
    Type: Application
    Filed: June 6, 2012
    Publication date: June 6, 2013
    Applicant: SCHOTT AG
    Inventors: Birgit DOERK, Evelin WEISS, Thomas ZENKER, Ulf HOFFMANN, Silke KNOCHE, Martin TAPLAN, Friedrich SIEBERS, Thomas KRAUS, Lutz KLIPPE, Wolfgang SCHMIDBAUER