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).

  • Patent number: 10322069
    Abstract: 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: Grant
    Filed: April 7, 2015
    Date of Patent: June 18, 2019
    Assignee: The Board of Regents of the University of Texas System
    Inventors: H. Ralph Rawls, Allen D. Johnston, Barry K. Norling, Kyumin Whang
  • Publication number: 20170020789
    Abstract: 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: Application
    Filed: April 7, 2015
    Publication date: January 26, 2017
    Inventors: H. Ralph Rawls, Allen D. Johnston, Barry K. Norling, Kyumin Whang
  • Patent number: 9480260
    Abstract: 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: Grant
    Filed: June 7, 2014
    Date of Patent: November 1, 2016
    Assignee: The Board of Regents of the University of Texas System
    Inventors: Kyumin Whang, H. Ralph Rawls, Barry K. Norling
  • Publication number: 20140288171
    Abstract: 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: Application
    Filed: June 7, 2014
    Publication date: September 25, 2014
    Inventors: Kyumin Whang, H. Ralph Rawls, Barry K. Norling
  • Patent number: 7135589
    Abstract: 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: Grant
    Filed: April 30, 2004
    Date of Patent: November 14, 2006
    Assignee: Board of Regents, The University of Texas System
    Inventors: Barry K. Norling, Neera Satsangi
  • Patent number: 7094358
    Abstract: 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: Grant
    Filed: March 7, 2002
    Date of Patent: August 22, 2006
    Assignee: The University of Texas System
    Inventors: Barry K. Norling, Neera Satsangi
  • Patent number: 7037583
    Abstract: 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: Grant
    Filed: November 29, 2000
    Date of Patent: May 2, 2006
    Assignees: Southwest Research Institute, Board of Regents, The University of Texas Systems
    Inventors: Benjamin R. Furman, Stephen T. Wellinghoff, Henry R. Rawls, Hong Dixon, Barry K. Norling
  • Publication number: 20040206934
    Abstract: 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: Application
    Filed: April 30, 2004
    Publication date: October 21, 2004
    Applicant: Board of Regents, The University of Texas System
    Inventors: Barry K. Norling, Neera Satsangi
  • Patent number: 6743936
    Abstract: 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: Grant
    Filed: October 19, 2000
    Date of Patent: June 1, 2004
    Assignees: Southwest Research Insittute, Board of Regents, The University of Texas System
    Inventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
  • Patent number: 6695617
    Abstract: 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: Grant
    Filed: October 18, 2000
    Date of Patent: February 24, 2004
    Assignee: Southwest Research Institute
    Inventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
  • Patent number: 6696585
    Abstract: 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: Grant
    Filed: September 22, 2000
    Date of Patent: February 24, 2004
    Assignees: Southwest Research Institute, Board of Regents, The University of Texas System
    Inventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
  • Publication number: 20030125435
    Abstract: 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: Application
    Filed: March 7, 2002
    Publication date: July 3, 2003
    Inventors: Barry K. Norling, Neera Satsangi
  • Patent number: 6417244
    Abstract: 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: Grant
    Filed: October 13, 2000
    Date of Patent: July 9, 2002
    Assignees: Southwest Research Institute, Board of Regents, The University of Texas System
    Inventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
  • Patent number: 6410765
    Abstract: 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: Grant
    Filed: October 17, 2000
    Date of Patent: June 25, 2002
    Assignee: Southwest Research Institute
    Inventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
  • Publication number: 20020013382
    Abstract: 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: Application
    Filed: November 29, 2000
    Publication date: January 31, 2002
    Inventors: Benjamin L. Furman, Stephen T. Wellinghoff, Henry R. Rawls, Hong Dixon, Barry K. Norling
  • Patent number: 6258974
    Abstract: 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: Grant
    Filed: June 23, 1998
    Date of Patent: July 10, 2001
    Assignee: Southwest Research Institute
    Inventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
  • Patent number: 6194481
    Abstract: 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: Grant
    Filed: May 19, 1999
    Date of Patent: February 27, 2001
    Assignees: Board of Regents of the University of Texas System, Southwest Research Institute
    Inventors: Benjamin R. Furman, Stephen T. Wellinghoff, Henry R. Rawls, Hong Dixon, Barry K. Norling
  • Patent number: 4364731
    Abstract: 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: Grant
    Filed: January 29, 1981
    Date of Patent: December 21, 1982
    Assignee: Board of Regents, The University of Texas System
    Inventors: Barry K. Norling, James L. Bugg, Jr.