Patents by Inventor Kai Rist

Kai Rist 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: 20230413464
    Abstract: A circuit housing (100) for a wearable intraoral application, including an inner layer (105-1) of a first material (101-1) for waterproof enclosure of an electronic circuit (103); and an outer layer (105-2) of a second material (101-2) for spatially fitting the circuit housing to a set of teeth (111), at least partially covering the first material (101-1).
    Type: Application
    Filed: May 30, 2023
    Publication date: December 21, 2023
    Inventors: Alexander Skawran, Marvin Kuhn, Kai Rist
  • Publication number: 20230357556
    Abstract: A polymerizable composition, which includes (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 9, 2023
    Inventor: Kai Rist
  • Patent number: 11753537
    Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: September 12, 2023
    Assignee: Ivoclar Vivadent AG
    Inventor: Kai Rist
  • Patent number: 11697696
    Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable compound and (b) at least one initiator for the radical polymerization, wherein the composition furthermore comprises (c) at least one UV absorber and (d) at least one optical brightener and comprises at least one radically polymerizable oligomer and at least one radically polymerizable, polyfunctional monomer as the at least one radically polymerizable compound (a).
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: July 11, 2023
    Assignee: Ivoclar Vivadent AG
    Inventor: Kai Rist
  • Patent number: 11596582
    Abstract: The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: March 7, 2023
    Assignee: Ivoclar Vivadent AG
    Inventors: Kai Rist, Annette Schmidt, Ahmad Shaaban
  • Publication number: 20220370300
    Abstract: Radically polymerizable dental material, which contains at least one ABA or AB block copolymer, preferably at least one monofunctional, radically polymerizable monomer (a) and preferably at least one radically polymerizable urethane di(meth)acrylate telechel (b).
    Type: Application
    Filed: May 4, 2022
    Publication date: November 24, 2022
    Inventors: Norbert Moszner, Jörg Angermann, Iris Lamparth, Yohann Catel, Kai Rist
  • Publication number: 20210138729
    Abstract: The present invention relates to a method for building a shaped body by layer-wise solidification of photopolymerizable building material by means of stereolithography characterized in that the positioning of a blade with respect to a vat bottom is adjusted in such a manner that the resulting predetermined, uniform layer thickness is higher than the predefined layer thickness to be set by lowering a building platform, but does not exceed the predefined layer thickness by more than 50%.
    Type: Application
    Filed: October 13, 2020
    Publication date: May 13, 2021
    Inventors: Hendrik John, Jörg Ebert, KaI Rist, Sonja Baumgartner, Malte Hartmann
  • Patent number: 10736820
    Abstract: Radically polymerizable dental material, which contains at least one sulphonic acid ester of Formula 1: in which A is H, CN, an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical or a combination thereof; X is COO— or —CON(R1)— or is absent; B is an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical, or a combination thereof; R1 is hydrogen or an aromatic, cycloaliphatic, linear or branched aliphatic C1-C10-hydrocarbon radical; m is an integer from 1 to 6, n is an integer from 1 to 6 and p is an integer from 1 to 6; wherein m and p cannot simultaneously be greater than 1. The compounds of Formula 1 are active as chain transfer agents in radical polymerization.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: August 11, 2020
    Assignees: Ivoclar Vivadent AG, Technicshe Universität Wien
    Inventors: Norbert Moszner, Iris Lamparth, Urs Karl Fischer, Kai Rist, Peter Burtscher, Robert Liska, Christian Gorsche, Konstanze Seidler
  • Publication number: 20200199346
    Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 25, 2020
    Inventor: Kai Rist
  • Publication number: 20200199268
    Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable compound and (b) at least one initiator for the radical polymerization, wherein the composition furthermore comprises (c) at least one UV absorber and (d) at least one optical brightener and comprises at least one radically polymerizable oligomer and at least one radically polymerizable, polyfunctional monomer as the at least one radically polymerizable compound (a).
    Type: Application
    Filed: December 6, 2019
    Publication date: June 25, 2020
    Inventor: Kai Rist
  • Patent number: 10667993
    Abstract: The invention relates to a polymerizable composition which comprises a thermolabile polymerizable compound of Formula I: A-[X-(T-X-Sp-X)p-T-X-Q-(Z)n]m?? Formula I, wherein T represents a thermolabile Diels-Alder or hetero-Diels-Alder group of the Formula The invention also relates to the use of the polymerizable composition according to the present invention and the compounds of Formula I according to the present invention as polymerization resin or for the preparation of polymerization resins and polymerizates such as adhesives, composites, stereolithographic materials, shaped parts, duromers and mounting and fixing elements, and as dental material and for the preparation of dental materials such as adhesives, cements and filling composites.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 2, 2020
    Assignees: Ivoclar Vivadent AG, Karlsruher Institute Für Technologie
    Inventors: Norbert Moszner, Iris Lamparth, Kai Rist, Christoph Barner-Kowollik, Alexander Schenzel, Marcel Langer
  • Publication number: 20200078271
    Abstract: The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.
    Type: Application
    Filed: August 16, 2019
    Publication date: March 12, 2020
    Inventors: Kai Rist, Annette Schmidt, Ahmed Shaaban
  • Patent number: 10213367
    Abstract: Radically polymerizable dental material, which contains at least one compound of Formula I: and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The materials are characterized by debonding-on-demand properties.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: February 26, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Kai Rist, Iris Lamparth, Peter Burtscher, Christian Gorsche, Robert Liska
  • Publication number: 20180369075
    Abstract: Radically polymerizable dental material, which contains at least one sulphonic acid ester of Formula 1: in which A is H, CN, an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical or a combination thereof; X is COO— or —CON(R1)— or is absent; B is an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical, or a combination thereof; R1 is hydrogen or an aromatic, cycloaliphatic, linear or branched aliphatic C1-C10-hydrocarbon radical; m is an integer from 1 to 6, n is an integer from 1 to 6 and p is an integer from 1 to 6; wherein m and p cannot simultaneously be greater than 1. The compounds of Formula 1 are active as chain transfer agents in radical polymerization.
    Type: Application
    Filed: May 2, 2016
    Publication date: December 27, 2018
    Applicant: Technische Universität Wien
    Inventors: Norbert Moszner, Iris Lamparth, Urs Karl Fischer, Kai Rist, Peter Burtscher, Robert Liska, Christian Gorsche, Konstanze Seidler
  • Publication number: 20180200155
    Abstract: The invention relates to a polymerizable composition which comprises a thermolabile polymerizable compound of Formula I: A-[X-(T-X-Sp-X)p-T-X-Q-(Z)n]m?? Formula I, wherein T represents a thermolabile Diels-Alder or hetero-Diels-Alder group of the Formula The invention also relates to the use of the polymerizable composition according to the present invention and the compounds of Formula I according to the present invention as polymerization resin or for the preparation of polymerization resins and polymerizates such as adhesives, composites, stereolithographic materials, shaped parts, duromers and mounting and fixing elements, and as dental material and for the preparation of dental materials such as adhesives, cements and filling composites.
    Type: Application
    Filed: October 11, 2016
    Publication date: July 19, 2018
    Inventors: Norbert MOSZNER, Iris LAMPARTH, Kai RIST, Christoph BARNER-KOWOLLIK, Alexander SCHENZEL, Marcel LANGER
  • Publication number: 20170156993
    Abstract: Radically polymerizable dental material, which contains at least one compound of Formula I: and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The materials are characterized by debonding-on-demand properties.
    Type: Application
    Filed: July 9, 2015
    Publication date: June 8, 2017
    Inventors: Norbert Moszner, Kai Rist, Iris Lamparth, Peter Burtscher, Christian Gorsche, Robert Liska
  • Patent number: 9320686
    Abstract: The invention relates to a dental restorative material which comprises a thermolabile compound of Formula I: [(Z1)m-Q1-X)]k-T-[Y-Q2-(Z2)n]l??Formula I, in which T represents a thermolabile unit which contains at least one thermolabile group based on non-covalent interactions, Z1 and Z2 in each case independently represent a polymerizable group selected from vinyl groups, CH2?CR1—CO—O— and CH2?CR1—CO—NR2— or an adhesive group selected from —Si(OR)3, —COOH, —O—PO(OH)2, —PO(OH)2, —SO2OH and —SH, Q1 in each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, Q2 in each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, X and Y in each case independently are missing or represent —O—, —
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 26, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Thomas Hirt, Kai Rist, Ulrich Salz, Christoph Weder, Gina Fiore, Christian Heinzmann, Volker Rheinberger
  • Publication number: 20140371341
    Abstract: The invention relates to a dental restorative material which comprises a thermolabile compound of Formula I: [(Z1)m-Q1-X)]k-T-[Y-Q2-(Z2)n]l??Formula I, in which T represents a thermolabile unit which contains at least one thermolabile group based on non-covalent interactions, Z1 and Z2 in each case independently represent a polymerizable group selected from vinyl groups, CH2?CR1—CO—O— and CH2?CR1—CO—NR2— or an adhesive group selected from —Si(OR)3, —COOH, —O—PO(OH)2, —PO(OH)2, —SO2OH and —SH, Q1 in each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, Q2 in each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, X and Y in each case independently are missing or represent —O—,
    Type: Application
    Filed: September 10, 2012
    Publication date: December 18, 2014
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Norbert Moszner, Thomas Hirt, Kai Rist, Ulrich Salz, Christoph Weder, Gina Fiore, Christian Heinzmann, Volker Rheinberger
  • Publication number: 20110275675
    Abstract: Dental material which contains an antimicrobial active ingredient according to general formula (I), in which R1=H, C1 to C3 alkylene residue; R2=a linear or branched C4 to C20 alkylene residue; R3=a C6 to C20 alkylene residue; and A?=Cl?, Br?, I?, F?, OH?, alkyl and aryl alcoholate, thiolate, NO3?, BO33?, PO43?, HPO42?, H2PO4?, alkyl and aryl phosphate, alkyl and aryl phosphonate, PF6?, TiF62?, BF4?, acetylacetonate, ?-diketonate or anion of a ?-keto ester. The dental material is suitable in particular as tooth filling material, material for inlays or onlays, tooth cement, enamel/dentine adhesive, veneering material for crowns and bridges, or as material for false teeth.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 10, 2011
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Kai Rist, Ulrich Salz, Volker Rheinberger