Patents by Inventor Stefan Meinhardt

Stefan Meinhardt 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: 20190276355
    Abstract: Chemically tempered lithium aluminosilicate glasses and methods of tempering are provided. The method allows fast tempering at moderate temperatures, which leads to a deep zone of surface tension with a high level of surface tension.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Applicant: SCHOTT AG
    Inventors: Stefan MEINHARDT, Rolf WEITNAUER
  • Patent number: 10351471
    Abstract: Chemically tempered lithium aluminosilicate glasses and methods of tempering are provided. The method allows fast tempering at moderate temperatures, which leads to a deep zone of surface tension with a high level of surface tension.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: July 16, 2019
    Assignee: SCHOTT AG
    Inventors: Stefan Meinhardt, Rolf Weitnauer
  • Publication number: 20160347655
    Abstract: Chemically tempered lithium aluminosilicate glasses and methods of tempering are provided. The method allows fast tempering at moderate temperatures, which leads to a deep zone of surface tension with a high level of surface tension.
    Type: Application
    Filed: August 10, 2016
    Publication date: December 1, 2016
    Applicant: SCHOTT AG
    Inventors: Stefan MEINHARDT, Rolf WEITNAUER
  • Patent number: 8597777
    Abstract: The transparent fire-resistant glazing has at least two glass or glass ceramic panes with a gap between them, which is filled with a UV-cured material. It is made by curing a UV-curable material filling the gap with UV radiation. The UV-curable material includes polymerizable components, namely a monomer with acrylate functionality and an oligomer, and at least one bromine-containing flame retardant. The fire retardant can be a polybrominated diphenyl ether, a brominated alcohol, or a polybrominated cycloalkane, and/or a mixtures thereof. The glazing is made by a process in which the panes are cleaned and masked to form the gap between them, the UV-curable material is filled into the gap and then cured with the UV radiation.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: December 3, 2013
    Assignee: Schott AG
    Inventors: Jens Klossek, Ruediger Freitag, Klaus-Dieter Schwabe, Stefan Meinhardt
  • Publication number: 20120321898
    Abstract: Chemically tempered lithium aluminosilicate glasses and methods of tempering are provided. The method allows fast tempering at moderate temperatures, which leads to a deep zone of surface tension with a high level of surface tension.
    Type: Application
    Filed: February 28, 2011
    Publication date: December 20, 2012
    Applicant: SCHOTT AG
    Inventors: Stefan Meinhardt, Rolf Weitnauer
  • Publication number: 20120251804
    Abstract: The transparent fire-resistant glazing has at least two glass or glass ceramic panes with a gap between them, which is filled with a UV-cured material. It is made by curing a UV-curable material filling the gap with UV radiation. The UV-curable material includes polymerizable components, namely a monomer with acrylate functionality and an oligomer, and at least one bromine-containing flame retardant. The fire retardant can be a polybrominated diphenyl ether, a brominated alcohol, or a polybrominated cycloalkane, and/or a mixtures thereof. The glazing is made by a process in which the panes are cleaned and masked to form the gap between them, the UV-curable material is filled into the gap and then cured with the UV radiation.
    Type: Application
    Filed: June 4, 2012
    Publication date: October 4, 2012
    Inventors: Jens Klossek, Ruediger Freitag, Klaus-Dieter Schwabe, Stefan Meinhardt
  • Patent number: 8211532
    Abstract: The transparent fire-resistant glazing has at least two glass or glass ceramic panes with a gap between them, which is filed with a UV-cured material made by curing a UV-curable material with UV radiation. The UV-curable material includes at least one bromine-containing flame retardant, which is a polybrominated diphenyl ether, a brominated alcohol, or a polybrominated cycloalkane, and/or a mixtures thereof. The glazing is made by a process in which the panes are cleaned and masked so that there is a gap between them, the UV-curable material is filled into the gap and then cured with UV radiation.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: July 3, 2012
    Assignee: Schott AG
    Inventors: Jens Klossek, Ruediger Freitag, Klaus-Dieter Schwabe, Stefan Meinhardt
  • Publication number: 20110256390
    Abstract: The invention relates to transparent fire-resistant glass elements made from at least two panes, wherein a layer made from a UV-curable material is arranged between each of said panes, to a method for the production thereof and to the use thereof as multiple glass elements in mobile units such as doors and windows or fixed as elements of walls or façades.
    Type: Application
    Filed: October 27, 2009
    Publication date: October 20, 2011
    Inventors: Jens Klossek, Ruediger Freitag, Klaus-Dieter Schwabe, Stefan Meinhardt
  • Patent number: 5852063
    Abstract: According to a process for preparing joint sealing foam, gypsum hydrate is uspended in water, the water slurry is intimately mixed with diphenylmethane diisocyanate prepolymers and/or toluene diisocyanate, is introduced into the joint and is allowed to set in.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: December 22, 1998
    Assignee: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventor: Stefan Meinhardt