Patents by Inventor Marc DITTMER

Marc DITTMER 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: 20250091939
    Abstract: Glasses and glass ceramics with high content of cerium and tin, which include the following components: Component Wt. % SiO2 48.0 to 75.0 Li2O 8.0 to 20.5 Cerium, calculated as CeO2 4.0 to 20.0 Tin, calculated as SnO 3.1 to 15.7 and which are particularly suitable for the preparation of dental restorations with fluorescence properties largely corresponding to those of natural teeth.
    Type: Application
    Filed: September 19, 2024
    Publication date: March 20, 2025
    Inventors: Marc Dittmer, Markus Rampf, Christian Ritzberger
  • Publication number: 20250091936
    Abstract: Glasses with high content of cerium and tin including the following components: Component Wt. - % SiO2 38.0 to 68.0? Cerium, calculated as CeO2 4.0 to 23.0 Tin, calculated as SnO 3.0 to 18.0 Li2O 1.0 to 5.0? Alkali metal oxide MeI2O 5.8 to 15.9 Oxide of divalent elements MeIIO 3.2 to 10.5 Oxide of trivalent elements MeIII2O3 3.5 to 11.8 and which are particularly suitable for the preparation of dental restorations whose fluorescence properties largely correspond to those of natural teeth.
    Type: Application
    Filed: September 19, 2024
    Publication date: March 20, 2025
    Inventors: Marc Dittmer, Markus Rampf, Christian Ritzberger
  • Patent number: 12252435
    Abstract: Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: March 18, 2025
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Rampf, Marc Dittmer, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
  • Publication number: 20250017827
    Abstract: Acid-stable glass fillers and self-adhesive dental composite cements with good transparency containing them. X-ray opaque glass filler with the following composition (wt. %): SiO2: 54.0-64.0; Al2O3: 10.0-25.0; B2O3: 0.0-10.0; La2O3: 0.1-10.0; WO3: 5.0-14.0; ZrO2: 0.1-7.0; MgO: 1.0-7.9; CaO: 0.1-6.0; ZnO: 0-6.0; SrO: 0-6.0, and radically polymerizable composition comprising, in addition to the radiopaque glass filler, at least one radically polymerizable monomer without an acid group, at least one radically polymerizable monomer containing an acid group, and at least one initiator for the radical polymerization. The glass filler is characterized by a high acid stability.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 16, 2025
    Inventors: Christian RITZBERGER, Norbert MOSZNER, Yohann CATEL, Marc DITTMER, Alexandros GIANASMIDIS
  • Publication number: 20240423765
    Abstract: An exposure device (100) for illuminating a dental object (101), having a chamber (103) for receiving the dental object (101); and a radiation source (105) for exposing the dental object (101) to a wavelength greater than 350 nm and to a power density greater than 10 W/cm2.
    Type: Application
    Filed: June 25, 2024
    Publication date: December 26, 2024
    Inventors: Christian NIEDRIG, Markus RAMPF, Marc DITTMER, Christian RITZBERGER
  • Publication number: 20240300851
    Abstract: Quartz solid solution glass ceramics and precursors thereof are described, which are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 12, 2024
    Inventors: Markus RAMPF, Marc DITTMER, Christian RITZBERGER
  • Publication number: 20240228366
    Abstract: Quartz solid solution glass ceramics and precursors thereof are described. which are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.
    Type: Application
    Filed: February 17, 2022
    Publication date: July 11, 2024
    Inventors: Markus RAMPF, Marc DITTMER, Christian RITZBERGER
  • Publication number: 20240190758
    Abstract: A lithium silicate glass ceramics having lithium disilicate as main crystal phase and having not more than 40 wt.-% of lithium disilicate crystals.
    Type: Application
    Filed: December 7, 2023
    Publication date: June 13, 2024
    Inventors: Markus Rampf, Christian Ritzberger, Marc Dittmer
  • Publication number: 20240132396
    Abstract: Quartz solid solution glass ceramics and precursors thereof are described. which are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.
    Type: Application
    Filed: February 17, 2022
    Publication date: April 25, 2024
    Inventors: Markus RAMPF, Marc DITTMER, Christian RITZBERGER
  • 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
  • Publication number: 20230202905
    Abstract: Lithium silicate glass ceramics and precursors thereof are described, which comprise copper and are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Inventors: Marc DITTMER, Markus RAMPF, Christian RITZBERGER, Katrin SULSER
  • Publication number: 20230201083
    Abstract: A radically polymerizable dental material having at least one radically polymerizable monomer without acid groups, at least one radically polymerizable monomer containing an acid group, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one initiator for the radical polymerization, wherein the filler is an acid-treated fluoroaluminosilicate glass filler and/or radiopaque glass filler.
    Type: Application
    Filed: December 28, 2022
    Publication date: June 29, 2023
    Inventors: Norbert Moszner, Alexandros Gianasmidis, Delphine Catel, Yohann Catel, Andy Brot, Tim Haldner, Christian Ritzberger, Philipp Bielec, Marc Dittmer, Barbara Grabenbauer
  • Publication number: 20230202906
    Abstract: Lithium silicate glass ceramics and precursors thereof are described, which contain tin and are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Inventors: Marc DITTMER, Christian RITZBERGER, Markus RAMPF, Katrin SULSER
  • Publication number: 20230119981
    Abstract: An exposure apparatus (100) for illuminating a dental object (101), including a chamber (103) for receiving the dental object (101); and a radiation source (105) for emitting radiation having a wavelength shorter than 350 nm into the chamber (103).
    Type: Application
    Filed: October 13, 2022
    Publication date: April 20, 2023
    Inventors: Christian Niedrig, Christian Ritzberger, Marc Dittmer, Markus Rampf
  • Publication number: 20230125010
    Abstract: An oven (100) for heating a dental object (101), having a chamber (103) for receiving the dental object (101); a radiation source (105) for emitting radiation having a wavelength smaller than 350 nm into the chamber (103); and heating means (113) for heating the dental object (101) in the chamber (103).
    Type: Application
    Filed: October 13, 2022
    Publication date: April 20, 2023
    Inventors: Christian RITZBERGER, Markus RAMPF, Marc DITTMER, Christian NIEDRIG
  • Publication number: 20230121316
    Abstract: A forming apparatus (100) for a dental object (101), having a forming means (127) for producing a predetermined spatial shape of the dental object (101); and a radiation source (105) for emitting radiation having a wavelength shorter than 350 nm onto the material (129) of the dental object (101).
    Type: Application
    Filed: October 13, 2022
    Publication date: April 20, 2023
    Inventors: Markus RAMPF, Marc DITTMER, Christian NIEDRIG, Christian RITZBERGER
  • Publication number: 20230012752
    Abstract: A process for the preparation of multi-coloured dental restorations is described, in which glasses and glass ceramics with various compositions are given the shapes of dental restorations and colour changes are effected in the glasses and glass ceramics by irradiating them with artificial electromagnetic radiation and subjecting them to a heat treatment.
    Type: Application
    Filed: December 22, 2020
    Publication date: January 19, 2023
    Inventors: Christian Ritzberger, Marc Dittmer, Markus Rampf, Christian Niedrig
  • 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
  • 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
  • Publication number: 20220227663
    Abstract: Lithium silicate-low quartz glass ceramics are described which are characterized by a combination of very good mechanical and optical properties and can therefore be used in particular as restoration material in dentistry.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Inventors: Christian Ritzberger, Markus Rampf, Wolfram Höland, Marc Dittmer, Marcel Schweiger