Patents by Inventor Karsten Dede
Karsten Dede 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).
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Patent number: 11844849Abstract: Dental compositions and methods of formulating a dental composition are described. In one embodiment, the dental composition comprises a polymerizable resin comprising one or more ethylenically unsaturated monomers or oligomers and nanoparticles. The nanoparticles have a refractive index of at least 1.600 and an average discrete or aggregate particle size of no greater than 100 nm. The dental composition further comprises inorganic metal oxide filler having a discrete or aggregate average particle size of at least 200 nm. The nanoparticles are present at a concentration to provide a refractive index differential between the cured polymerizable resin and inorganic metal oxide filler such that the contrast ratio of the dental composition is at least 40.Type: GrantFiled: January 7, 2022Date of Patent: December 19, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Bradley D. Craig, Timothy D. Dunbar, Karsten Dede, Adrian S. Eckert, Ahmed S. Abuelyaman, Gregory A. Kobussen, Christoph H. Thalacker, Paul J. Homnick
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Patent number: 11612548Abstract: The invention relates to a radiation-curable radiopaque dental composition comprising a resin matrix comprising cross-linkable component(s) as Component A, ethylenically unsaturated component(s) with acidic moiety as Component B, an initiator system comprising photoinitiator(s) as Component C, reducing agent(s) as Component D, Component A containing at least two (meth)acrylate moieties and a brominated aromatic moiety selected from brominated resorcinol, catechol, tyrosol, benzoic acid, or phenol moieties. The composition can be used for producing an x-ray visible dental adhesive composition, restoration primer or dental sealant.Type: GrantFiled: November 5, 2018Date of Patent: March 28, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Christoph H. Thalacker, Adrian S. Eckert, Henry Loll, Karsten Dede
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Publication number: 20220125687Abstract: Dental compositions and methods of formulating a dental composition are described. In one embodiment, the dental composition comprises a polymerizable resin comprising one or more ethylenically unsaturated monomers or oligomers and nanoparticles. The nanoparticles have a refractive index of at least 1.600 and an average discrete or aggregate particle size of no greater than 100 nm. The dental composition further comprises inorganic metal oxide filler having a discrete or aggregate average particle size of at least 200 nm. The nanoparticles are present at a concentration to provide a refractive index differential between the cured polymerizable resin and inorganic metal oxide filler such that the contrast ratio of the dental composition is at least 40.Type: ApplicationFiled: January 7, 2022Publication date: April 28, 2022Inventors: Bradley D. Craig, Timothy D. Dunbar, Karsten Dede, Adrian S. Eckert, Ahmed S. Abuelyaman, Gregory A. Kobussen, Christoph H. Thalacker, Paul J. Homnick
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Patent number: 11246808Abstract: Dental compositions and methods of formulating a dental composition are described. In one embodiment, the dental composition comprises a polymerizable resin comprising one or more ethylenically unsaturated monomers or oligomers and nano-particles. The nanoparticles have a refractive index of at least 1.600 and an average discrete or aggregate particle size of no greater than 100 nm. The dental composition further comprises inorganic metal oxide filler having a discrete or aggregate average particle size of at least 200 nm. The nanoparticles are present at a concentration to provide a refractive index differential between the cured polymerizable resin and inorganic metal oxide filler such that the contrast ratio of the dental composition is at least 40.Type: GrantFiled: February 1, 2017Date of Patent: February 15, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Bradley D. Craig, Timothy D. Dunbar, Karsten Dede, Adrian S. Eckert, Ahmed S. Abuelyaman, Gregory A. Kobussen, Christoph H. Thalacker, Paul J. Homnick
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Publication number: 20210085570Abstract: The invention relates to a one-part dental adhesive composition comprising polymerizable component(s) with an acidic moiety as Component A, photo-initiator(s) as Component B1, transition metal ion component(s) as Component C, solvent(s) other than water as Component D1, a stabilizer as Component E, the stabilizer comprising a free radical moiety or being selected from anaerobic stabilizers, for use in a process of fixing a composite material to the surface of hard dental tissue, the composite material comprising a redox initiator system with an oxidizing agent and a reducing agent.Type: ApplicationFiled: April 29, 2019Publication date: March 25, 2021Inventors: Christoph H. Thalacker, Karsten Dede, Henry Loll, Bernd Anich, Adrian S. Eckert, Kai U. Claussen, Manfred Ludsteck
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Patent number: 10932995Abstract: The invention relates to a dental composition comprising a resin matrix, a filler matrix in an amount of at least 25 wt. % with respect to the weight of the dental composition, an initiator system, the resin matrix comprising polymerizable monomer(s) comprising two (meth)acrylate moieties connected to a brominated resorcinol, catechol, tyrosol, benzoic acid or phenol moiety. The invention relates also to a dental milling block comprising this composition in its hardened stage.Type: GrantFiled: November 5, 2018Date of Patent: March 2, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Adrian S. Eckert, Karsten Dede, Christoph H. Thalacker, Gioacchino Raia
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Publication number: 20200360240Abstract: The invention relates to a radiation-curable radiopaque dental composition comprising a resin matrix comprising cross-linkable component(s) as Component A, ethylenically unsaturated component(s) with acidic moiety as Component B, an initiator system comprising photoinitiator(s) as Component C, reducing agent(s) as Component D, Component A containing at least two (meth)acrylate moieties and a brominated aromatic moiety selected from brominated resorcinol, catechol, tyrosol, benzoic acid, or phenol moieties. The composition can be used for producing an x-ray visible dental adhesive composition, restoration primer or dental sealant.Type: ApplicationFiled: November 5, 2018Publication date: November 19, 2020Inventors: Christoph H. Thalacker, Adrian S. Eckert, Henry Loll, Karsten Dede
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Publication number: 20200360241Abstract: The invention relates to a dental composition comprising a resin matrix, a filler matrix in an amount of at least 25 wt. % with respect to the weight of the dental composition, an initiator system, the resin matrix comprising polymerizable monomer(s) comprising two (meth)acrylate moieties connected to a brominated resorcinol, catechol, tyrosol, benzoic acid or phenol moiety. The invention relates also to a dental milling block comprising this composition in its hardened stage.Type: ApplicationFiled: November 5, 2018Publication date: November 19, 2020Inventors: Adrian S. Eckert, Karsten Dede, Christoph H. Thalacker, Gioacchino Raia
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Patent number: 10617495Abstract: The invention relates to a dental milling block (1) comprising a dental article (2) having an outer surface, the dental article having been produced based on personalized data, wherein the outer surface of the dental article is at least partially covered with a surrounding material. The invention further relates to a process of producing a dental milling block, the process comprising the steps of: ?a) providing a personalized Data Set C containing geometry data of the dental article and colour data related to said geometry data, ?b) generating a layer of hardenable material on a surface, ?c) applying a colour agent to the layer of hardenable material of step b), wherein the colour agent is applied to at least some regions of those areas of the layer of hardenable material which are related to the geometry data of the dental article, ?d) consolidating the result obtained in step c) thereby obtaining an at least partially hardened layer of material.Type: GrantFiled: December 7, 2012Date of Patent: April 14, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Malte Korten, Helmar Mayr, Gallus Schechner, Christoph Thalacker, Karsten Dede, Michael Jahns
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Publication number: 20190038516Abstract: Dental compositions and methods of formulating a dental composition are described. In one embodiment, the dental composition comprises a polymerizable resin comprising one or more ethylenically unsaturated monomers or oligomers and nano-particles. The nanoparticles have a refractive index of at least 1.600 and an average discrete or aggregate particle size of no greater than 100 nm. The dental composition further comprises inorganic metal oxide filler having a discrete or aggregate average particle size of at least 200 nm. The nanoparticles are present at a concentration to provide a refractive index differential between the cured polymerizable resin and inorganic metal oxide filler such that the contrast ratio of the dental composition is at least 40.Type: ApplicationFiled: February 1, 2017Publication date: February 7, 2019Inventors: Bradley D. Craig, Timothy D. Dunbar, Karsten Dede, Adrian S. Eckert, Ahmed S. Abuelyaman, Gregory A. Kobussen, Christoph H. Thalacker, Paul J. Homnick
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Patent number: 10010488Abstract: A dental composition comprising a polymerizable monomer (1), initiator, filler component(s) in an amount of more than about 20 wt.-%, wt.-% with respect to the whole weight of the composition, the polymerizable monomer (1) being characterized as follows: having exactly two (meth)acrylate reactive moieties, having an unsymmetrical backbone as linkage between the (meth)acrylate reactive moieties, the two (meth)acrylate reactive moieties being attached onto the unsymmetrical monomer backbone as alkyl esters, the unsymmetrical backbone comprising one aromatic moiety of the phenolic type, the polymerizable monomer (1) not containing an acidic moiety, other atoms than carbon, hydrogen, nitrogen, and oxygen, a bisphenol moiety. The invention is also directed to the use of the dental composition as or for producing a dental filling material, dental cement, crown and bridge material, inlay, onlay, veneer, orthodontic device or dental mill blank.Type: GrantFiled: February 10, 2015Date of Patent: July 3, 2018Assignee: 3M Innovative Properties CompanyInventors: Adrian S. Eckert, Michael Cub, Bettina Hailand, Marion B. Kestel, Christoph Thalacker, Karsten Dede
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Patent number: 10004669Abstract: The invention relates to a dental composition comprising polymerizable monomer (1), initiator component(s), filler component(s) in an amount of more than about 20 wt.-%, wt.-% with respect to the whole weight of the composition, the polymerizable monomer (1) being characterized as follows: having exactly two (meth)acrylate reactive moieties, having an unsymmetrical backbone as linkage between the (meth)acrylate reactive moieties, the two (meth)acrylate reactive moieties being attached onto the unsymmetrical monomer backbone as alkyl esters, the unsymmetrical backbone comprising one aromatic moiety of the phenolic type, the polymerizable monomer (1) not containing an acidic moiety, other atoms than carbon, hydrogen, and oxygen, bisphenol moieties. The invention also relates to the use of the dental composition as or for producing a dental filling material, crown and bridge material, inlay, onlay, veneer or dental mill blank.Type: GrantFiled: February 18, 2015Date of Patent: June 26, 2018Assignee: 3M Innovative Properties CompanyInventors: Adrian S. Eckert, Michael Cub, Bettina Hailand-Newhook, Marion B. Kestel, Christoph Thalacker, Karsten Dede, Uwe H. Hoheisel, Reinhold Hecht, Henry Loll, Bernhard Hofmann
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Patent number: 9937106Abstract: The invention relates to a kit of parts comprising part A and part B, part A comprising a polymerizable component having an acid group in the molecule, an initiator, part B comprising an activator, and a film former with a molecular weight of at least 1000. The invention also relates to a composition obtainable by mixing the components contained in the kit of parts and to a process for producing the kit of parts comprising the steps of bringing the components contained in part B of the kit in contact with a surface, drying the surface to form a film.Type: GrantFiled: October 13, 2016Date of Patent: April 10, 2018Assignee: 3M Innovative Properties CompanyInventors: Christoph Thalacker, Karsten Dede, Alexandra Glaser, Thomas Luchterhandt, Markus Watermann
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Patent number: 9844493Abstract: An adhesive dental composition comprising a polymerizable monomer (1), a polymerizable monomer (2) comprising an acidic moiety, initiator component(s), filler component(s) in an amount of less than about 15 wt.-%, wt.-% with respect to the whole weight of the composition, the polymerizable monomer (1) being characterized as follows: having exactly two (meth)acrylate reactive moieties, having an unsymmetrical backbone as linkage between the (meth)acrylate reactive moieties, the two (meth)acrylate reactive moieties being attached onto the unsymmetrical monomer backbone as alkyl esters, the unsymmetrical backbone comprising one aromatic moiety of the phenolic type, the polymerizable monomer (1) not containing an acidic moiety, other atoms than carbon, hydrogen, and oxygen, bisphenol moieties. The invention also relates to the use of the adhesive dental composition as dental adhesive, sealant, cement or for bonding or cementing a material to the surface of hard dental tissue.Type: GrantFiled: February 18, 2015Date of Patent: December 19, 2017Assignee: 3M Innovative Properties CompanyInventors: Adrian S. Eckert, Michael Cub, Bettina Hailand, Ines Edelmann, Christoph Thalacker, Karsten Dede, Uwe H. Hoheisel, Reinhold Hecht
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Publication number: 20170165152Abstract: A dental composition comprising a polymerizable monomer (1), initiator, filler component(s) in an amount of more than about 20 wt.-%, wt.-% with respect to the whole weight of the composition, the polymerizable monomer (1) being characterized as follows: having exactly two (meth)acrylate reactive moieties, having an unsymmetrical backbone as linkage between the (meth)acrylate reactive moieties, the two (meth)acrylate reactive moieties being attached onto the unsymmetrical monomer backbone as alkyl esters, the unsymmetrical backbone comprising one aromatic moiety of the phenolic type, the polymerizable monomer (1) not containing an acidic moiety, other atoms than carbon, hydrogen, nitrogen, and oxygen, a bisphenol moiety.Type: ApplicationFiled: February 10, 2015Publication date: June 15, 2017Inventors: Adrian S. Eckert, Michael Cub, Bettina Hailand, Marion B. Kestel, Christoph Thalacker, Karsten Dede
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Publication number: 20170065495Abstract: An adhesive dental composition comprising a polymerizable monomer (1), a polymerizable monomer (2) comprising an acidic moiety, initiator component(s), filler component(s) in an amount of less than about 15 wt.-%, wt.-% with respect to the whole weight of the composition, the polymerizable monomer (1) being characterized as follows: having exactly two (meth)acrylate reactive moieties, having an unsymmetrical backbone as linkage between the (meth)acrylate reactive moieties, the two (meth)acrylate reactive moieties being attached onto the unsymmetrical monomer backbone as alkyl esters, the unsymmetrical backbone comprising one aromatic moiety of the phenolic type, the polymerizable monomer (1) not containing an acidic moiety, other atoms than carbon, hydrogen, and oxygen, bisphenol moieties. The invention also relates to the use of the adhesive dental composition as dental adhesive, sealant, cement or for bonding or cementing a material to the surface of hard dental tissue.Type: ApplicationFiled: February 18, 2015Publication date: March 9, 2017Inventors: Adrian S. Eckert, Michael Cub, Bettina Hailand, Ines Edelmann, Christoph Thalacker, Karsten Dede, Uwe H. Hoheisel, Reinhold Hecht
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Publication number: 20170056298Abstract: The invention relates to a dental composition comprising polymerizable monomer (1), initiator component(s), filler component(s) in an amount of more than about 20 wt.-%, wt.-% with respect to the whole weight of the composition, the polymerizable monomer (1) being characterized as follows: having exactly two (meth)acrylate reactive moieties, having an unsymmetrical backbone as linkage between the (meth)acrylate reactive moieties, the two (meth)acrylate reactive moieties being attached onto the unsymmetrical monomer backbone as alkyl esters, the unsymmetrical backbone comprising one aromatic moiety of the phenolic type, the polymerizable monomer (1) not containing an acidic moiety, other atoms than carbon, hydrogen, and oxygen, bisphenol moieties. The invention also relates to the use of the dental composition as or for producing a dental filling material, crown and bridge material, inlay, onlay, veneer or dental mill blank.Type: ApplicationFiled: February 18, 2015Publication date: March 2, 2017Applicant: 3M Innovative Properties CompanyInventors: Adrian S. Eckert, Michael Cub, Bettina Hailand, Marion B. Kestel, Christoph Thalacker, Karsten Dede, Uwe H. Hoheisel, Reinhold Hecht, Henry Loll, Bernhard Hofmann
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Publication number: 20170056299Abstract: The invention relates to a kit of parts comprising part A and part B, part A comprising a polymerizable component having an acid group in the molecule, an initiator, part B comprising an activator, and a film former with a molecular weight of at least 1000. The invention also relates to a composition obtainable by mixing the components contained in the kit of parts and to a process for producing the kit of parts comprising the steps of bringing the components contained in part B of the kit in contact with a surface, drying the surface to form a film.Type: ApplicationFiled: October 13, 2016Publication date: March 2, 2017Inventors: CHRISTOPH THALACKER, KARSTEN DEDE, ALEXANDRA GLASER, THOMAS LUCHTERHANDT, MARKUS WATERMANN
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Patent number: 9498313Abstract: The present disclosure relates to a kit of parts comprising part A and part B, part A comprising a polymerizable component having an acid group in the molecule, an initiator, part B comprising an activator, and a film former with a molecular weight of at least 1000. The present disclosure also relates to a composition obtainable by mixing the components contained in the kit of parts and to a process for producing the kit of parts comprising the steps of bringing the components contained in part B of the kit in contact with a surface, drying the surface to form a film.Type: GrantFiled: July 26, 2011Date of Patent: November 22, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Christoph Thalacker, Karsten Dede, Alexandra Glaser, Thomas Luchterhandt, Markus Watermann
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Patent number: 9295617Abstract: The invention relates to a dental composition having a) compound (A) with the following features: only one backbone unit (U) with 6 to 20 carbon atoms, at least 6 carbon atoms thereof forming an aromatic or an aliphatic cyclic moiety, the remaining carbon atoms either being part of substituents pending from the cyclic moiety or being part of bridging groups to spacer units, wherein one or more of the remaining carbon atoms can be replaced by an oxygen atom, the backbone unit not comprising a bisphenol structure, one or two spacer unit(s) (S) being connected to the backbone unit (U) via an ether linkage, at least one spacer unit (S) having a —CH2-CH2-CH2-CH2-O-CH2-CH(Q)-OG chain or a —CH2-CH(OG)-CH2-OM residue or a mixture of these two types of spacers within one spacer unit, with G having at least one group selected from acroyl, methacroyl, acetyl, benzoyl, and combinations thereof, M having at least one aryl group, and combinations thereof, Q having at least one group selected from hydrogen, methyl, phenylType: GrantFiled: January 12, 2012Date of Patent: March 29, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Adrian S. Eckert, Michael M. Cub, Bettina Hailand, Marion B. Kestel, Karsten Dede, Uwe H. Hoheisel, Gioacchino Raia, Christoph Thalacker, Reinhold Hecht, Thomas Luchterhandt