Patents by Inventor Jörg Hessenkemper

Jörg Hessenkemper 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).

  • HOT-FORMED, CHEMICALLY PRESTRESSABLE GLASS ARTICLES WITH A LOW PROPORTION OF CRYSTALS AND METHODS AND DEVICES FOR PRODUCING
    Publication number: 20240092684
    Abstract: A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 ?m and up to at most 5 ?m.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Applicant: SCHOTT AG
    Inventors: Thomas SCHMIADY, Thomas SEUTHE, Jörg HESSENKEMPER, Sebastian LEUKEL, Susanne KRÜGER
  • Hot-formed, chemically prestressable glass articles with a low proportion of crystals and methods and devices for producing
    Patent number: 11878939
    Abstract: A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 ?m and up to at most 5 ?m.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 23, 2024
    Assignee: SCHOTT AG
    Inventors: Thomas Schmiady, Thomas Seuthe, Jörg Hessenkemper, Sebastian Leukel, Susanne Krüger
  • METHOD OF MAKING HIGH QUALITY GLASS PRODUCTS FROM HIGH VISCOSITY MELTS
    Publication number: 20240010539
    Abstract: A method of making glass products includes: heating material to obtain a glass melt; heating the glass melt in a melting tank having a melting tank bottom, the glass melt having a melt volume, a melt surface, and a viscosity of 102 dPas at a temperature above 1580° C. The glass melt is heated such that at least some of the glass melt has a viscosity of 102.5 dPas or less. An amount of thermal energy introduced directly into the melt volume is more than 60% of a total amount of thermal energy introduced into the glass melt. A maximum difference between a temperature at a location on the melt surface and a temperature at a location at the melting tank bottom vertically underneath the location on the melt surface is such that a difference in glass melt densities is less than 0.05 g/cm3 per meter distance between the locations.
    Type: Application
    Filed: September 20, 2023
    Publication date: January 11, 2024
    Applicant: Schott AG
    Inventors: Hildegard Römer, Michael Hahn, Stefan Rosner, Volker Trinks, Rainer Eichholz, Christoph Bergmann, Armin Vogl, Jörg Hessenkemper, Horst Blei, Klaus Schönberger, Sybille Haas, Guido Räke, Stefan Schmitt, Christoph Berndhäuser, Olaf Claussen, Christopher Klein, Wolfgang Schmidbauer
  • GLASS, METHOD FOR PRODUCING A GLASS, AND GLASS MELTING APPARATUS
    Publication number: 20220281766
    Abstract: A glass element has, per kg of glass, 50 or fewer inclusions having a size of 2 ?m to 10 ?m. The glass element can be made of borosilicate glass.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 8, 2022
    Applicant: SCHOTT AG
    Inventors: Armin VOGEL, Joerg HESSENKEMPER, Knut JAKOBI, Klaus-Dieter DUCH, Andreas SPRENGER, Michael HAHN, Klaus-Peter KOENIG, Thomas PFEIFFER
  • SHEET-LIKE CHEMICALLY TOUGHENED OR CHEMICALLY TOUGHENABLE GLASS ARTICLE AND METHOD FOR PRODUCING SAME
    Publication number: 20220153629
    Abstract: A chemically toughened or chemically toughenable sheet-like glass article is provided. The glass article includes a glass with a composition having Al2O3, SiO2, Li2O, and B2O3. The glass and/or the glass article includes not more than 7 w t% of B2O3.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Applicant: SCHOTT AG
    Inventors: Inge BURGER, Thomas SEUTHE, Jochen ALKEMPER, Susanne KRÜGER, Oliver HOCHREIN, Rüdiger DIETRICH, Jovana DJORDJEVIC-REISS, Thomas SCHMIADY, Jörg HESSENKEMPER, Sebastian LEUKEL, Julia WEISSHUHN
  • HOT-FORMED, CHEMICALLY PRESTRESSABLE GLASS ARTICLES WITH A LOW PROPORTION OF CRYSTALS AND METHODS AND DEVICES FOR PRODUCING
    Publication number: 20210039982
    Abstract: A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 ?m and up to at most 5 ?m.
    Type: Application
    Filed: August 5, 2020
    Publication date: February 11, 2021
    Applicant: SCHOTT AG
    Inventors: Thomas Schmiady, Thomas Seuthe, Jörg Hessenkemper, Sebastian Leukel, Susanne Krüger