Patents by Inventor Ronny Hengst

Ronny Hengst 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).

  • Fluorescent glass ceramics and glasses with europium content
    Patent number: 11905207
    Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0 and which are suitable in particular for the production of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: February 20, 2024
    Assignee: Ivoclar Vivadent AG
    Inventors: Marc Dittmer, Ronny Hengst, Christian Ritzberger
  • Fluorescent glass ceramics and glasses with europium content
    Patent number: 11440834
    Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0? and which are suitable in particular for the production of restorations, the fluorescence properties of which largely correspond to those of natural teeth.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: September 13, 2022
    Assignee: Ivoclar Vivadent AG
    Inventors: Marc Dittmer, Ronny Hengst, Christian Ritzberger
  • Fluorescent glass ceramics and glasses with cerium and tin content
    Patent number: 11440833
    Abstract: The invention relates to glass ceramics and glasses with cerium and tin content, which comprise the following components: Component wt.-% SiO2 42.0 to 80.0 Al2O3 0.1 to 42.0 Cerium, calculated as CeO2 0.5 to 10.0 Tin, calculated as SnO 0.1 to 4.0 and which are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: September 13, 2022
    Assignee: Ivoclar Vivadent AG
    Inventors: Ronny Hengst, Marc Dittmer
  • Fluorescent Glass Ceramics And Glasses With Europium Content
    Publication number: 20220204383
    Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0 and which are suitable in particular for the production of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 30, 2022
    Inventors: Marc Dittmer, Ronny Hengst, Christian Ritzberger
  • Glazing Material
    Publication number: 20220127201
    Abstract: A glazing material for producing a glazed ceramic body, in which at a first temperature T1, the glazing material has a viscosity of more than 102.5 Pa·s, in particular more than 104.0 Pa·s, preferably more than 105.6 Pa·s and particularly preferably more than 107.0 Pa·s, and, which at a second temperature T2, which is higher than the first temperature, a viscosity of less than 109 Pa·s, in particular less than 107 Pa·s and preferably less than 105.6 Pa·s. The glazing material can be used for glazing a non-densely sintered substrate material.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Inventors: Frank Rothbrust, Ronny Hengst, Sebastian Krolikowski, Christian Ritzberger, Diana Tauch
  • Process for producing a glazed ceramic body
    Patent number: 11254618
    Abstract: A process for producing a glazed ceramic body, in which a glazing material is applied to a non-densely sintered substrate material and the substrate material and the glazing material are subjected to a heat treatment in order to obtain the glazed body.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 22, 2022
    Assignee: Ivoclar Vivadent AG
    Inventors: Frank Rothbrust, Ronny Hengst, Sebastian Krolikowski, Christian Ritzberger, Diana Tauch
  • Process For Producing A Glazed Ceramic Body
    Publication number: 20210002181
    Abstract: The invention relates to a process for producing a glazed ceramic body, in which (a) a glazing material is applied to a non-densely sintered substrate material and (b) the substrate material and the glazing material are subjected to a heat treatment in a temperature range which extends from a first temperature T1 to a second temperature T2, which is higher than the first temperature, in order to obtain the glazed body. The invention also relates to the use of a glazing material for glazing a non-densely sintered substrate material.
    Type: Application
    Filed: March 23, 2018
    Publication date: January 7, 2021
    Inventors: Frank Rothbrust, Ronny Hengst, Sebastian Krolikowski, Christan Ritzberger, Diana Tauch
  • Fluorescent Glass Ceramics And Glasses With Europium Content
    Publication number: 20200262739
    Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0? and which are suitable in particular for the production of restorations, the fluorescence properties of which largely correspond to those of natural teeth.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 20, 2020
    Inventors: Marc Dittmer, Ronny Hengst, Christian Ritzberger
  • Fluorescent Glass Ceramics And Glasses With Cerium And Tin Content
    Publication number: 20200262738
    Abstract: The invention relates to glass ceramics and glasses with cerium and tin content, which comprise the following components: Component wt.-% SiO2 42.0 to 80.0 Al2O3 0.1 to 42.0 Cerium, calculated as CeO2 0.5 to 10.0 Tin, calculated as SnO 0.1 to 4.0 and which are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 20, 2020
    Inventors: Ronny Hengst, Marc Dittmer