Patents by Inventor Barry K. Norling
Barry K. Norling 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: 10322069Abstract: Embodiments of the invention are directed to dental compositions comprising: (1) at least one cationically reactive compound; (2) at least one cationic photoinitiator; (3) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive oxirane, oxetane, or alkenyl ether, (4) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive acrylate that is capable of forming an interpenetrating network; (5) at least one free radical initiator; and (6) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive acrylate or methacrylate and at least one oxirane, oxetane, or alkenyl ether.Type: GrantFiled: April 7, 2015Date of Patent: June 18, 2019Assignee: The Board of Regents of the University of Texas SystemInventors: H. Ralph Rawls, Allen D. Johnston, Barry K. Norling, Kyumin Whang
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Publication number: 20170020789Abstract: Embodiments of the invention are directed to dental compositions comprising: (1) at least one cationically reactive compound; (2) at least one cationic photoinitiator; (3) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive oxirane, oxetane, or alkenyl ether, (4) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive acrylate that is capable of forming an interpenetrating network; (5) at least one free radical initiator; and (6) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive acrylate or methacrylate and at least one oxirane, oxetane, or alkenyl ether.Type: ApplicationFiled: April 7, 2015Publication date: January 26, 2017Inventors: H. Ralph Rawls, Allen D. Johnston, Barry K. Norling, Kyumin Whang
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Patent number: 9480260Abstract: Methods of forming antimicrobial polymeric materials comprising metallic nanoparticles are disclosed. Such methods generally comprise: combining a metal-containing material with a resin in situ; and curing the resin in the presence of a metal-containing material. Antimicrobial polymeric materials formed by said methods are also disclosed.Type: GrantFiled: June 7, 2014Date of Patent: November 1, 2016Assignee: The Board of Regents of the University of Texas SystemInventors: Kyumin Whang, H. Ralph Rawls, Barry K. Norling
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Publication number: 20140288171Abstract: Methods of forming antimicrobial polymeric materials comprising metallic nanoparticles are disclosed. Such methods generally comprise: combining a metal-containing material with a resin in situ; and curing the resin in the presence of a metal-containing material. Antimicrobial polymeric materials formed by said methods are also disclosed.Type: ApplicationFiled: June 7, 2014Publication date: September 25, 2014Inventors: Kyumin Whang, H. Ralph Rawls, Barry K. Norling
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Patent number: 7135589Abstract: Liquid crystal monomers and secondary monomers useful to blend with liquid crystal monomers to maintain a nematic state under processing conditions while maintaining low cure shrinkage, particularly suitable for use in dental resin composites.Type: GrantFiled: April 30, 2004Date of Patent: November 14, 2006Assignee: Board of Regents, The University of Texas SystemInventors: Barry K. Norling, Neera Satsangi
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Patent number: 7094358Abstract: Resin blends comprising liquid crystal monomers and secondary monomers useful to blend with liquid crystal monomers to maintain a nematic state under processing conditions while maintaining low cute shrinkage, particularly suitable for use in dental resin composites.Type: GrantFiled: March 7, 2002Date of Patent: August 22, 2006Assignee: The University of Texas SystemInventors: Barry K. Norling, Neera Satsangi
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Patent number: 7037583Abstract: Metal oxide nanoparticles having at least some surface acid sites functionalized with an adhesion promoter and at least some surface acid sites functionalized with a coupling agent. The nanoparticles are useful in forming composites comprising photopolymerizable matrix monomers, and are primarily suitable for dental and medical restoration. In a preferred embodiment, the metal oxide comprises zirconium, and the coupling agent is a zirconate.Type: GrantFiled: November 29, 2000Date of Patent: May 2, 2006Assignees: Southwest Research Institute, Board of Regents, The University of Texas SystemsInventors: Benjamin R. Furman, Stephen T. Wellinghoff, Henry R. Rawls, Hong Dixon, Barry K. Norling
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Publication number: 20040206934Abstract: Novel secondary monomers for use in monomer blends. The blends remain in a nematic state after the addition of inorganic filler and exhibit low cure shrinkage.Type: ApplicationFiled: April 30, 2004Publication date: October 21, 2004Applicant: Board of Regents, The University of Texas SystemInventors: Barry K. Norling, Neera Satsangi
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Patent number: 6743936Abstract: There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Also disclosed are the method making such functionalized particular by reacting a metal oxide with a silyl ester of a phosphonate in the presence of a non-aqueous solvent and in an inert atmosphere and the method of making the composites wherein the functionalized particles are admixed with an acrylate-based matrix monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Further disclosed is the method of dental repair wherein the composites are applied to a tooth and photopolymerized.Type: GrantFiled: October 19, 2000Date of Patent: June 1, 2004Assignees: Southwest Research Insittute, Board of Regents, The University of Texas SystemInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Patent number: 6695617Abstract: There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Also disclosed are the method making such functionalized particular by reacting a metal oxide with a silyl ester of a phosphonate in the presence of a non-aqueous solvent and in an inert atmosphere and the method of making the composites wherein the functionalized particles are admixed with an acrylate-based matrix monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Further disclosed is the method of dental repair wherein the composites are applied to a tooth and photopolymerized.Type: GrantFiled: October 18, 2000Date of Patent: February 24, 2004Assignee: Southwest Research InstituteInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Patent number: 6696585Abstract: There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Also disclosed are the method making such functionalized particular by reacting a metal oxide with a silyl ester of a phosphonate in the presence of a non-aqueous solvent and in an inert atmosphere and the method of making the composites wherein the functionalized particles are admixed with an acrylate-based matrix monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Further disclosed is the method of dental repair wherein the composites are applied to a tooth and photopolymerized.Type: GrantFiled: September 22, 2000Date of Patent: February 24, 2004Assignees: Southwest Research Institute, Board of Regents, The University of Texas SystemInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Publication number: 20030125435Abstract: A novel method of making liquid crystal monomers, novel monomer blends, and novel secondary monomers for use in such blends. The blends remain in a nematic state after additing inorganic filler, and exhibit low cure shrinkage.Type: ApplicationFiled: March 7, 2002Publication date: July 3, 2003Inventors: Barry K. Norling, Neera Satsangi
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Patent number: 6417244Abstract: Metal oxide and metal oxide-silica nanoparticles are disclosed wherein the surfaces thereof are complexed with a polymerizable, biocompatible, heterocyclic base. Polymerizable compositions are prepared by loading such nanoparticles into acrylate based monomer matrices, which compositions can then be photocured into X-ray opaque, transparent or translucent solids. Methods are disclosed for forming such complexed nanoparticles and compositions and for using such compositions as medical or dental restoratives.Type: GrantFiled: October 13, 2000Date of Patent: July 9, 2002Assignees: Southwest Research Institute, Board of Regents, The University of Texas SystemInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Patent number: 6410765Abstract: There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Also disclosed are the method making such functionalized particular by reacting a metal oxide with a silyl ester of a phosphonate in the presence of a non-aqueous solvent and in an inert atmosphere and the method of making the composites wherein the functionalized particles are admixed with an acrylate-based matrix monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Further disclosed is the method of dental repair wherein the composites are applied to a tooth and photopolymerized.Type: GrantFiled: October 17, 2000Date of Patent: June 25, 2002Assignee: Southwest Research InstituteInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Publication number: 20020013382Abstract: Metal oxide nanoparticles having at least some surface acid sites functionalized with an adhesion promoter and at least some surface acid sites functionalized with a coupling agent. The nanoparticles are useful in forming composites comprising photopolymerizable matrix monomers, and are primarily suitable for dental and medical restoration. In a preferred embodiment, the metal oxide comprises zirconium, and the coupling agent is a zirconate.Type: ApplicationFiled: November 29, 2000Publication date: January 31, 2002Inventors: Benjamin L. Furman, Stephen T. Wellinghoff, Henry R. Rawls, Hong Dixon, Barry K. Norling
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Patent number: 6258974Abstract: There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Also disclosed are the method making such functionalized particular by reacting a metal oxide with a silyl ester of a phosphonate in the presence of a non-aqueous solvent and in an inert atmosphere and the method of making the composites wherein the functionalized particles are admixed with an acrylate-based matrix monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Further disclosed is the method of dental repair wherein the composites are applied to a tooth and photopolymerized.Type: GrantFiled: June 23, 1998Date of Patent: July 10, 2001Assignee: Southwest Research InstituteInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Patent number: 6194481Abstract: Zirconium oxide nanoparticles having at least some surface acid sites functionalized with a silanating agent and at least some surface acid sites finctionalized with zirconate or a zircoaluminate. The nanoparticles are useful in composites comprising photopolymerizable alkene matrix monomers, and are primarily suitable for dental and medical restoration.Type: GrantFiled: May 19, 1999Date of Patent: February 27, 2001Assignees: Board of Regents of the University of Texas System, Southwest Research InstituteInventors: Benjamin R. Furman, Stephen T. Wellinghoff, Henry R. Rawls, Hong Dixon, Barry K. Norling
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Patent number: 4364731Abstract: Methods and compositions are provided for enhancing the bonding of polymeric materials to substrates via silane coupling agents. The methods involve depositing an oxide layer, such as alumina or silica, to a substrate, for example stainless steel. Next a silane coupling agent is applied which forms a strong chemical bond with the oxide layer. This layer is then coated or contacted with a polymeric substance. The resulting composite provides a strong adhesive bonding of substrate to polymer.Type: GrantFiled: January 29, 1981Date of Patent: December 21, 1982Assignee: Board of Regents, The University of Texas SystemInventors: Barry K. Norling, James L. Bugg, Jr.