Patents by Inventor Caroline RENN

Caroline RENN 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).

  • Patent number: 11918664
    Abstract: The present invention relates to an aqueous dental glass ionomer composition for use in the treatment of cavitated carious lesions, which composition comprises a water-soluble, polymerizable polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the polymerizable polymer has a polymer backbone and pendant groups having one or more polymerizable carbon-carbon double bonds. The dental glass ionomer composition is used as a permanent direct restoration.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: March 5, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Florian Szillat, Caroline Renn, Christoph Weber, Uwe Walz, Joachim Klee
  • Patent number: 11904030
    Abstract: The present invention relates to a dental composition comprising a radically polymerizable compound, a redox initiator system comprising one or more clathrate compounds comprising a host molecule and one or more guest molecules, wherein the host molecule is selected from cyclodextrines, crown ethers, cucurbituriles and calixarenes and the one or more guest molecules are reducing agents, and an oxidizing agent. Furthermore, the present invention relates to a use of the redox initiator system in a dental composition.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 20, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Florian Szillat, Caroline Renn, Christian Scheufler, Jörg Brenneisen
  • Patent number: 11883510
    Abstract: The present invention relates to a dental composition comprising a photoinitiator system comprising a particulate carrier supporting a coinitiator covalently bonded to the surface of the carrier. Furthermore, the present invention relates to a use of the particulate carrier in a dental composition. The particulate carrier displays multiple covalently bonded tertiary amino groups and/or tertiary phosphine groups on the surface, for crosslinking monomers, oligomers and/or polymers having one or more polymerizable double bonds.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: January 30, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Maximilian Maier, Joachim E. Klee, Christian Scheufler, Caroline Renn, Florian Szillat
  • Patent number: 11844848
    Abstract: The present invention relates to a photocurable dental composition comprising a specific polymerization initiator system containing the combination of a photoinitiator compound and a coinitiator compound being a sulfinate compound or a sulfonate compound. The present invention also relates to the use of this polymerization initiator system in a photocurable dental composition.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: December 19, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Florian Szillat, Maximilian Maier, Caroline Renn, Oliver Elsner, Joachim E. Klee, Jorg Kempter, Jacques Lalevee, Mariem Bouzrati-Zerelli, Julie Kirschner
  • Publication number: 20230355482
    Abstract: The present invention is related to a dental composition comprising at least one polymerizable monomer having at least one ethylenically unsaturated group; and a radical initiator system comprising a photosensitizer having an absorption maximum ranging from 400 nm to 800 nm; and at least one thiophenium compound as coinitiator.
    Type: Application
    Filed: September 23, 2021
    Publication date: November 9, 2023
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Jacques LALEVÉE, Mira ABDALLAH, Thomas TIGGES, Kira NEUHAUS, Caroline RENN, Liu HUAIBING
  • Publication number: 20230132972
    Abstract: The present invention relates to a process for the preparation of a dental resin-modified glass ionomer composition comprising a polymerizable polyacidic polymer, wherein the process comprises the following steps as further defined in claim 1.
    Type: Application
    Filed: December 11, 2017
    Publication date: May 4, 2023
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christian SCHEUFLER, Maximilian MAIER, Joachim E. KLEE, Caroline RENN
  • Patent number: 11628125
    Abstract: The present invention relates to an initiator modified polyacidic polymer having a covalently bonded initiator compound, and to a dental resin-modified glass ionomer composition comprising this polyacidic polymer. Furthermore, the present invention relates to a use of the initiator modified polyacidic polymer for the preparation of a dental composition. The covalently bonded initiator compound of the initiator modified polyacidic polymer may be any compound of a redox initiator system, a photoinitiator system, for example a Norrish type I or II photoinitiator, an electron donor component, a sensitizer component or a coinitiator component.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 18, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Maximilian Maier, Joachim E. Klee, Christian Scheufler, Caroline Renn, Florian Szillat
  • Publication number: 20230100120
    Abstract: The present invention relates to a dental composition comprising a photoinitiator system comprising a particulate carrier supporting a coinitiator covalently bonded to the surface of the carrier. Furthermore, the present invention relates to a use of the particulate carrier in a dental composition. The particulate carrier displays multiple covalently bonded tertiary amino groups and/or tertiary phosphine groups on the surface, for crosslinking monomers, oligomers and/or polymers having one or more polymerizable double bonds.
    Type: Application
    Filed: October 4, 2022
    Publication date: March 30, 2023
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
  • Publication number: 20220226198
    Abstract: A redox curing dental composition comprising: a. one or more compounds having a radical polymerizable carbon-carbon double bond; b. a redox initiator system comprising a reducing agent which is a compound of the following formula (I): wherein R1 and R2 which may be the same or different, independently represent a C1-18 hydrocarbyl group, or R1 and R2 form together with the silicon atom to which they are bonded a 3 to 8-membered silicon-containing alicyclic ring, which groups R1 and/or R2 may be substituted with one to three substituents selected from the group consisting of a C1-6 alkoxy group, a halogen atom, or a carboxylic acid group; and (ii) an oxidizing agent adapted to oxidize the reducing agent of formula (I) in the absence of light for generating a radical capable of initiating radical polymerization of the one or more compounds having a radical polymerizable carbon-carbon double bond.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 21, 2022
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Florian SZILLAT, Jacques LALEVÉE, Caroline RENN
  • Patent number: 11224557
    Abstract: The present invention relates to a dental composition which is a resin modified dental cement composition, comprising a radically polymerizable compound and a redox initiator system comprising one or more clathrate compounds comprising a host molecule and one or more guest molecules, wherein the guest molecule is an oxidising agent selected from organic peroxides and organic hydroperoxides. Furthermore, the present invention relates to a use of the redox initiator system in a dental composition which is a resin modified dental cement composition.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: January 18, 2022
    Assignee: DENTSPLY SIRONA INC
    Inventors: Florian Szillat, Caroline Renn, Oliver Elsner, Joachim Klee, Christian Scheufler
  • Publication number: 20220000721
    Abstract: A dental composition comprising (a) a polymerizable monomer; and (b) an initiator system comprising (b-1) a sensitizer or an oxidizing agent of a redox initiator system; and (b-2) a coinitiator of the following formula (I): Q-X?? (I) wherein Q and X are as defined in claim 1.
    Type: Application
    Filed: November 13, 2019
    Publication date: January 6, 2022
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Joachim E. KLEE, Oliver ELSNER, Florian SZILLAT, Caroline RENN
  • Publication number: 20210308019
    Abstract: The present invention relates to an aqueous dental glass ionomer composition for use in the treatment of cavitated carious lesions, which composition comprises a water-soluble, polymerizable polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the polymerizable polymer has a polymer backbone and pendant groups having one or more polymerizable carbon-carbon double bonds. The dental glass ionomer composition is used as a permanent direct restoration.
    Type: Application
    Filed: June 10, 2021
    Publication date: October 7, 2021
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: SZILLAT Florian, Caroline Renn, Christoph Weber, Uwe Walz, Joachim Klee
  • Patent number: 11071693
    Abstract: The present invention relates to an aqueous dental glass ionomer composition for use in the treatment of cavitated carious lesions, which composition comprises a water-soluble, polymerizable polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the polymerizable polymer has a polymer backbone and pendant groups having one or more polymerizable carbon-carbon double bonds. The dental glass ionomer composition is used as a permanent direct restoration.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 27, 2021
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Szillat Florian, Caroline Renn, Christoph Weber, Uwe Walz, Joachim Klee
  • Publication number: 20210186821
    Abstract: The present invention relates to a photocurable dental composition comprising a specific polymerization initiator system containing the combination of a photoinitiator compound and a coinitiator compound being a sulfinate compound or a sulfonate compound. The present invention also relates to the use of this polymerization initiator system in a photocurable dental composition.
    Type: Application
    Filed: October 9, 2018
    Publication date: June 24, 2021
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Florian SZILLAT, Maximilian MAIER, Caroline RENN, Oliver ELSNER, Joachim E. KLEE, Jorg KEMPTER, Jacques LALEVEE, Mariem BOUZRATI-ZERELLI, Julie KIRSCHNER
  • Publication number: 20210069069
    Abstract: The present invention relates to a dental composition comprising a photoinitiator system comprising a particulate carrier supporting a coinitiator covalently bonded to the surface of the carrier. Furthermore, the present invention relates to a use of the particulate carrier in a dental composition. The particulate carrier displays multiple covalently bonded tertiary amino groups and/or tertiary phosphine groups on the surface, for crosslinking monomers, oligomers and/or polymers having one or more polymerizable double bonds.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 11, 2021
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
  • Publication number: 20210069070
    Abstract: The present invention relates to an initiator modified polyacidic polymer having a covalently bonded initiator compound, and to a dental resin-modified glass ionomer composition comprising this polyacidic polymer. Furthermore, the present invention relates to a use of the initiator modified polyacidic polymer for the preparation of a dental composition. The covalently bonded initiator compound of the initiator modified polyacidic polymer may be any compound of a redox initiator system, a photoinitiator system, for example a Norrish type I or II photoinitiator, an electron donor component, a sensitizer component or a coinitiator component.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 11, 2021
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
  • Patent number: 10899861
    Abstract: The present invention relates to a polymerizable polyacidic polymer and to a process for preparing the polymerizable polyacidic polymer. Furthermore, the present invention relates to an aqueous dental composition comprising the polymerizable polyacidic polymer, to a use of the polymerizable polyacidic polymer for the preparation of a dental composition and to an acrylic acid derivative copolymer.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: January 26, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Joachim Klee, Caroline Renn, Florian Szillat, Oliver Elsner, Christian Scheufler, Ulrich Lampe, Helmut Ritter
  • Publication number: 20200405585
    Abstract: The present invention relates to a dental composition comprising a radically polymerizable compound, a redox initiator system comprising one or more clathrate compounds comprising a host molecule and one or more guest molecules, wherein the host molecule is selected from cyclodextrines, crown ethers, cucurbituriles and calixarenes and the one or more guest molecules are reducing agents, and an oxidizing agent. Furthermore, the present invention relates to a use of the redox initiator system in a dental composition.
    Type: Application
    Filed: March 5, 2019
    Publication date: December 31, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Florian SZILLAT, Caroline RENN, Christian SCHEUFLER, Jörg BRENNEISEN
  • Patent number: 10849831
    Abstract: A dental composition comprising a polymerizable acidic compound of the following formula (I): wherein R1 which may be the same or different when more than one R1 is present, represents a hydrogen atom or a methyl group; R2 which may be the same or different when more than one R2 is present, represents a hydrogen atom, a straight-chain or branched C1-6 alkyl group, a C3-8 cycloalkyl group or a straight-chain or branched C2-6 alkenyl group; R3 which may be the same or different when more than one R3 is present, represents a monovalent organic moiety substituted by a group selected from —COOM, —PO3M, —O—PO3M2 and —SO3M, wherein M independently represents a hydrogen atom or a metal atom; or R2 and R3 form together a divalent organic moiety substituted by a group selected from —COOM, —PO3M, —O—PO3M2 and —SO3M, wherein M independently represents a hydrogen atom or a metal atom; L represents a (m+n+1)-valent organic linker group; X represents a hydrogen atom or a group selected from —COOM, —PO3M, —O—PO3M2 or —S
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: December 1, 2020
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Caroline Renn, Florian Szillat, Joachim E. Klee, Christian Scheufler, Oliver Elsner, Thomas Tigges, Mattias Worm, Helmut Ritter, Xiaoming Jin
  • Patent number: 10624821
    Abstract: The present invention relates to an aqueous dental glass ionomer composition comprising (A) a reactive particulate glass, (B) a water-soluble, polymerizable polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the polymerizable polymer has a polymer backbone and hydrolysis-stable pendant groups having one or more polymerizable carbon-carbon double bonds, wherein the polymerizable polymer is obtainable by a process comprising a) a step of copolymerizing a mixture comprising (i) a first copolymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and (ii) a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary amino groups and a second polymerizable organic moiety, for obtaining an amino group containing copolymer; b) a step of coupling to the amino group containing copolymer a compound having a polymerizable moiety and a functional
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: April 21, 2020
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Caroline Renn, Oliver Elsner, Julia Gansel, Christian Scheufler, Uwe Walz, Christoph Weber, Joachim E. Klee, Maxmilian Maier