Patents by Inventor Joachim E. Klee

Joachim E. Klee 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: 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
  • Patent number: 11000454
    Abstract: Disclosed here in is a dental composition having a novel polymerizable compound, a photosensitizer and an iodonium salt. Further disclosed are method of preparing a dental composition.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: May 11, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Christoph Fik, Maximilian Maier, Joachim E. Klee
  • 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
  • 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
  • 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
  • Publication number: 20200323743
    Abstract: The present invention relates to a dental composition comprising (i) an acidic polymerizable compound of the following formula (Ia), (Ib) or (Ic): wherein X, Y, Y?, Z, L, R2, R3 and R4 are as defined in claim 1; and (ii) an initiator system. Furthermore, the present invention relates to the use of the polymerizable compound of formula (I) for the preparation of a dental composition.
    Type: Application
    Filed: May 19, 2017
    Publication date: October 15, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Sven POHLE, Joachim E. KLEE, Marina STOJILJKOVIC, Dr. Magnus Schmidt, Dr. Markus Ringwald
  • Patent number: 10780026
    Abstract: A method of forming a dental composite includes photopolymerizing a dental composition. The dental composition includes a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical. The photopolymerizing forms the dental composite such that the dental composite has a flexural modulus of about 9500 MPa or greater and the polymerizable stable radical reduces shrinkage stress of the dental composite caused by the photopolymerizing by 10% or greater. A method of forming a dental composite composition includes combining a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical to form the dental composite composition.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: September 22, 2020
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Hui Lu, Xiaoming Jin, Joachim E. Klee, Bernard Koltisko
  • Publication number: 20200157266
    Abstract: Described herein are a polymerizable antibacterial nanogel and hydrolytically stable antibacterial nanogel composition and methods of preparing such compositions, use of polymerizable antibacterial nanogels and hydrolytically stable antibacterial nanogels as additives to a dental product, such as a resin monomer, a cement, an adhesive and composite formulations. Methods and compositions for forming hydrolytically stable antibacterial monomers are also described.
    Type: Application
    Filed: August 29, 2019
    Publication date: May 21, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Xiaoming JIN, Christian Scheufler, Joachim E. KLEE, Hui LU
  • 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
  • Publication number: 20200085697
    Abstract: The present invention relates to a dental composition comprising a specific radically polymerizable compound and a radical initiator system. Furthermore, the present invention relates to the specific radically polymerizable compound and its use in a dental composition. The specific radically polymerizable compound of the present invention has an allyl (meth)acrylamide group and a phosphoric acid ester group.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 19, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER
  • Patent number: 10588830
    Abstract: The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: March 17, 2020
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Joachim E. Klee, Florian Szillat, Maximilian Maier, Helmut Ritter, Jacques Lalevee, Jean Pierre Fouassier, Fabrice Morlet-Savary, Celine Dietlin, Mariem Bouzrati-Zerelli, Christoph P Fik
  • Publication number: 20200069530
    Abstract: The present disclosure relates to methods and compositions to stabilize a nanogel and use of such nanogel as additives in dental compositions.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Xiaoming JIN, Bassam USTA, Christian Scheufler, Joachim E. KLEE, Thomas TIGGES, Kira NEUHAUS, Jörg Brenneisen, Hui LU
  • Publication number: 20200022884
    Abstract: The present invention relates to a dental composition comprising a specific polymerizable compound and a polymerization initiator system. Furthermore, the present invention relates to the specific polymerizable compound as such and its use in a dental composition. The specific polymerizable compound of the present invention has an N-allyl (meth)acrylamide group, which nitrogen atom is substituted with an alkyl or alkenyl group optionally substituted by a group selected from a hydroxyl group, a C1-4 alkoxy group, a tertiary amino group and a carboxyl group, wherein 1 to 8 carbon atoms in the main chain of the alkyl or alkenyl group may independently from each other be replaced by a heteroatom selected from an oxygen atom and a sulfur atom.
    Type: Application
    Filed: December 12, 2017
    Publication date: January 23, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Joachim E. KLEE, Christian SCHEUFLER, Christoph WEBER
  • Patent number: 10512594
    Abstract: The present invention relates to a dental composition comprising an initiator system comprising a sensitizer compound having an acylsilyl- or acylgermyl-group and a specific coinitiator compound. The present invention also relates to an initiator system consisting essentially of the sensitizer compound having an acylsilyl- or acylgermyl-group and a coinitiator compound wherein a C—H bond dissociation energy is less than 95 Kcal/mol. Furthermore, the present invention relates to the use of this initiator system for the preparation of a dental composition.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: December 24, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Joachim E. Klee, Florian Szillat, Maximilian Maier, Helmut Ritter, Jacques Lalevee, Jean Pierre Fouassier, Fabrice Morlet-Savary, Celine Dietlin, Mariem Bouzrati-Zerelli, Christoph P Fik
  • Publication number: 20190350817
    Abstract: A light-curable dental impression material comprising (a) a polymerizable polysiloxane resin composition comprising compounds of formula (I) E-(L1-Z)n-L2-E ??(I) (b) a particulate filler; and (c) a photoinitiator.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Xiaoming JIN, Christos Angeletakis, Yi Liu, Joachim E. Klee, Christoph Weber, Xin Huo
  • Patent number: 10449125
    Abstract: A process for producing a water-soluble, hydrolysis-stable, polymerizable polymer, 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 group reactive with an amino group of repeating units derived from the second copolymerizable monomer in the amino group containing copolymer obtained in the first step wherein the optionally protected amino group is deprotected, so that polymerizable pendant groups are linked to the backbone by hydrolysis-stable linking groups, and, optionally, a step of deprotecting the protected carboxylic ac
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: October 22, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Joachim E. Klee, Helmut Ritter, Maximilliam Maier, Julia Gansel, Andreas Facher, Oliver Elsner, Sven Pohle
  • Publication number: 20190224081
    Abstract: A method of forming a dental composite includes photopolymerizing a dental composition. The dental composition includes a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical. The photopolymerizing forms the dental composite such that the dental composite has a flexural modulus of about 9500 MPa or greater and the polymerizable stable radical reduces shrinkage stress of the dental composite caused by the photopolymerizing by 10% or greater. A method of forming a dental composite composition includes combining a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical to form the dental composite composition.
    Type: Application
    Filed: February 19, 2018
    Publication date: July 25, 2019
    Inventors: Hui LU, Xiaoming JIN, Joachim E. KLEE, Bernard KOLTISKO
  • Publication number: 20190201297
    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 —SO
    Type: Application
    Filed: January 2, 2019
    Publication date: July 4, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Caroline Renn, Florian Szillat, Joachim E. Klee, Christian Scheufler, Oliver Elsner, Thomas Tigges, Mattias Worm, Helmut Ritter, Xiaoming Jin
  • Publication number: 20190117523
    Abstract: Disclosed here in is a dental composition having a novel polymerizable compound, a photosensitizer and an iodonium salt. Further disclosed are method of preparing a dental composition.
    Type: Application
    Filed: May 19, 2017
    Publication date: April 25, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Maximilian MAIER, Joachim E. KLEE
  • Publication number: 20190117522
    Abstract: Dental composition comprising (a) a homogeneous phase comprising monomer combinations (i) and (ii), (i) and (iii), (ii) and (iii), or (i), (ii) and (iii), or comprising monomer (iii), wherein (i) represents one or more compounds having one or more radically polymerizable carbon-carbon double bonds; (ii) represents one or more compounds having one or more cationically polymerizable groups; and (iii) represents one or more compounds having a combination of one or more radically polymerizable carbon-carbon double bonds and one or more cationically polymerizable groups; (b) an initiator system comprising (iv) one or more radical polymerization initiator of the following formula (I): wherein M is Ge or Si; R1, R2 and R3 may be the same or different, independently represent an organic group, and R4 represents a hydrogen atom, an organic or organometallic group; provided that when R4 is a hydrogen atom, the initiator system further comprises a sensitizer compound having a light absorption maximum in the rang
    Type: Application
    Filed: April 7, 2017
    Publication date: April 25, 2019
    Applicant: DENTSPLY SIRONA inc.
    Inventors: Joachim E. Klee, Maximilian MAIER, Christoph P. FIK, Jscques LALEVEE, Jean Pierre FOUASSIER, Fabrice MORLET-SAVARY, Celine DIETLIN, Mariem BOUZRATI-ZERELLI