Patents by Inventor Andreas Sprenger

Andreas Sprenger 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).

  • 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
  • Process and device for production of molten glass
    Publication number: 20060162387
    Abstract: The invention concerns a process and a device from the production of molten glass. According to the invention, measures will be taken to lead the current of the molten glass through the tank furnace so that cutoffs of the glass current between the surface of the glass bath, on the one hand, and the outlet opening on the other hand are avoided and a an equal holding period of all melt particles in the tank furnace is achieved.
    Type: Application
    Filed: March 13, 2006
    Publication date: July 27, 2006
    Inventors: Stefan Schmitt, Rule Kirchhoff, Wilfried Linz, Norbert Osterhage, Gerhard Lautenschlager, Andreas Sprenger, Klaus-Dieter Duch, Frank Karetta, Ludwig Dursch, Rainer Eichholz
  • Process for production of molten glass
    Patent number: 7040122
    Abstract: The invention concerns a process and a device from the production of molten glass. According to the invention, measures will be taken to lead the current of the molten glass through the tank furnace so that cutoffs of the glass current between the surface of the glass bath, on the one hand, and the outlet opening on the other hand are avoided and a an equal holding period of all melt particles in the tank furnace is achieved.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: May 9, 2006
    Assignee: Schott AG
    Inventors: Stefan Schmitt, Rule Kirchhoff, Wilfried Linz, Norbert Osterhage, Gerhard Lautenschläger, Andreas Sprenger, Klaus-Dieter Duch, Frank Karetta, Ludwig Dürsch, Rainer Eichholz
  • Lithium-aluminosilicate flat float glass
    Publication number: 20050250639
    Abstract: Lithium-aluminosilicate flat float glass with a high thermal stability, which can be chemically and thermally tempered and is refined without using the standard refining agents arsenic oxide and/or antimony oxide, having a composition which, in % by weight based on the total composition, contains the following main constituents: Li2O ??2.5-6.0? ? Na2O + K2O <4 B2O3 ???0-<4 Al2O3 ??15-30? SiO2 ??55-75? ? TiO2 + ZrO2 <2 in order to avoid the crystallization of undesirable beta-quartz and/or keatite solid solutions and the use of this glass.
    Type: Application
    Filed: April 12, 2005
    Publication date: November 10, 2005
    Inventors: Friedrich Siebers, Gerhard Lautenschlager, Klaus Schneider, Andreas Sprenger
  • Process and device for production of molten glass
    Publication number: 20030066314
    Abstract: According to the invention, measures will be taken to lead the current of the molten glass through the tank furnace so that cutoffs of the glass current between the surface of the glass bath, on the one hand, and the outlet opening on the other hand are avoided and a an equal holding period of all melt particles in the tank furnace is achieved.
    Type: Application
    Filed: August 19, 2002
    Publication date: April 10, 2003
    Inventors: Stefan Schmitt, Rule Kirchhoff, Wilfried Linz, Norbert Osterhage, Gerhard Lautenschlager, Andreas Sprenger, Klaus-Dieter Duch, Frank Karetta, Ludwig Dursch, Rainer Eichholz
  • Alkali-free aluminoborosilicate glass, its use and process for its preparation
    Patent number: 6465381
    Abstract: The invention relates to an alkali-free aluminoboro-silicate glass which has the following composition (in % by weight, based on oxide): SiO2 >60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; with MgO+CaO+SrO+BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1. The glass is particularly suitable for use as a substrate glass in display technology.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: October 15, 2002
    Assignee: Schott Glas
    Inventors: Gerhard Lautenschläger, Klaus Schneider, Thomas Kloss, Andreas Sprenger