Patents by Inventor Thomas Mark McCleskey
Thomas Mark McCleskey 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: 8487028Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: GrantFiled: August 20, 2012Date of Patent: July 16, 2013Assignee: Los Alamos National Security, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Patent number: 8431253Abstract: A polymer-assisted deposition process for deposition of epitaxial cubic metal nitride films and the like is presented. The process includes solutions of one or more metal precursor and soluble polymers having binding properties for the one or more metal precursor. After a coating operation, the resultant coating is heated at high temperatures under a suitable atmosphere to yield metal nitride films and the like. Such films can be used as templates for the development of high quality cubic GaN based electronic devices.Type: GrantFiled: January 22, 2009Date of Patent: April 30, 2013Assignee: Los Alamos National Security, LLCInventors: Anthony K. Burrell, Thomas Mark McCleskey, Quanxi Jia, Alexander H. Mueller, Hongmei Luo
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Publication number: 20130089663Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: ApplicationFiled: August 20, 2012Publication date: April 11, 2013Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Patent number: 8354046Abstract: Highly ordered Ge films are prepared directly on single crystal Si substrates by applying an aqueous coating solution having Ge-bound polymer onto the substrate and then heating in a hydrogen-containing atmosphere. A coating solution was prepared by mixing water, a germanium compound, ethylenediaminetetraacetic acid, and polyethyleneimine to form a first aqueous solution and then subjecting the first aqueous solution to ultrafiltration.Type: GrantFiled: September 11, 2009Date of Patent: January 15, 2013Assignee: Los Alamos National Security, LLCInventors: Quanxi Jia, Anthony K. Burrell, Eve Bauer, Filip Ronning, Thomas Mark McCleskey, Guifu Zou
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Patent number: 8278380Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: GrantFiled: December 23, 2009Date of Patent: October 2, 2012Assignee: Los Alamos National Security, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Patent number: 8158247Abstract: Light-emitting devices are prepared by coating a porous substrate using a polymer-assisted deposition process. Solutions of metal precursor and soluble polymers having binding properties for metal precursor were coated onto porous substrates. The coated substrates were heated at high temperatures under a suitable atmosphere. The result was a substrate with a conformal coating that did not substantially block the pores of the substrate.Type: GrantFiled: January 30, 2009Date of Patent: April 17, 2012Assignee: Los Alamos National Security, LLCInventors: Anthony K. Burrell, Thomas Mark McCleskey, Quanxi Jia, Eve Bauer, Alexander H. Mueller
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Publication number: 20120064341Abstract: Composite structures of carbon nanotubes (CNTs) and metal carbides include a helical nanotube/carbide composite fiber, and a film. The composite fiber was prepared by pulling/twisting carbon nanotubes from an array of nanotubes to form an as-spun fiber and soaking it a metal precursor solution, and then heating it under a reducing atmosphere with a carbon source. The composite fiber had a higher tensile strength, a higher conductivity, and a higher tensile modulus than the as-spun fiber. A composite structure in the form of parallel ribbons of aligned carbon nanotubes embedded in a film of NbC showed an enhanced conductivity along the CNT axial direction, and improved superconducting properties. The enhanced upper critical field of NbC/CNT suggested that the inclusion of CNTs in the NbC matrix reduced the coherence length of the NbC. Nanomechanical testing also demonstrated the potential for enhanced fracture toughness of NbC/CNT composites.Type: ApplicationFiled: September 22, 2011Publication date: March 15, 2012Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Guifu Zou, Yingying Zhang, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Publication number: 20110189504Abstract: A coating solution including a polymer and a metal selected from scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, boron, aluminum and silicon can be deposited on a substrate and then exposed at elevated temperature to a reducing atmosphere including a gaseous carbon source. Solvent evaporates and the polymer decomposes and a metal carbide film forms on the substrate. Metal carbide films of titanium carbide, vanadium carbide, niobium carbide, tantalum carbide, tungsten carbide, silicon carbide, and several mixed carbides were prepared. X-Ray diffraction patterns of metal carbide films provide evidence of a highly ordered structure and excellent alignment with the substrate. A composite film of niobium carbide and carbon nanotubes was also prepared.Type: ApplicationFiled: February 1, 2010Publication date: August 4, 2011Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Guifu Zou, Hongmei Luo, Quanxi Jia, Thomas Mark McCleskey, Anthony K. Burrell
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Publication number: 20110034600Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: ApplicationFiled: December 23, 2009Publication date: February 10, 2011Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Patent number: 7679060Abstract: An improved nanophosphor scintillator liquid comprises nanophosphor particles in a liquid matrix. The nanophosphor particles are optionally surface modified with an organic ligand. The surface modified nanophosphor particle is essentially surface charge neutral, thereby preventing agglomeration of the nanophosphor particles during dispersion in a liquid scintillator matrix. The improved nanophosphor scintillator liquid may be used in any conventional liquid scintillator application, including in a radiation detector.Type: GrantFiled: October 25, 2007Date of Patent: March 16, 2010Assignee: Los Alamos National Security, LLCInventors: Edward Allen McKigney, Anthony Keiran Burrell, Bryan L. Bennett, David Wayne Cooke, Kevin Curtis Ott, Minesh Kantilal Bacrania, Rico Emilio Del Sesto, Robert David Gilbertson, Ross Edward Muenchausen, Thomas Mark McCleskey
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Publication number: 20100029069Abstract: Highly ordered Ge films are prepared directly on single crystal Si substrates by applying an aqueous coating solution having Ge-bound polymer onto the substrate and then heating in a hydrogen-containing atmosphere. A coating solution was prepared by mixing water, a germanium compound, ethylenediaminetetraacetic acid, and polyethyleneimine to form a first aqueous solution and then subjecting the first aqueous solution to ultrafiltration.Type: ApplicationFiled: September 11, 2009Publication date: February 4, 2010Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Quanxi Jia, Anthony K. Burrell, Eve Bauer, Filip Ronning, Thomas Mark McCleskey, Guifu Zou
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Publication number: 20090233080Abstract: Light-emitting devices are prepared by coating a porous substrate using a polymer-assisted deposition process. Solutions of metal precursor and soluble polymers having binding properties for metal precursor were coated onto porous substrates. The coated substrates were heated at high temperatures under a suitable atmosphere. The result was a substrate with a conformal coating that did not substantially block the pores of the substrate.Type: ApplicationFiled: January 30, 2009Publication date: September 17, 2009Inventors: Anthony K. Burrell, Thomas Mark McCleskey, Quanxi Jia, Eve Bauer, Alexander H. Mueller
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Publication number: 20090200561Abstract: A composite material is provided including a phosphor material of at least one of among hafnium oxide, niobium oxide, tantalum oxide or zirconium oxide as a conformal coating on a porous substrate, the composite characterized as exhibiting photoluminescence at room temperature. Also provided is a composite material including a phosphor material of at least one of among hafnium oxide, niobium oxide, tantalum oxide, zinc oxide or zirconium oxide as a conformal coating on a porous substrate, the composite characterized as exhibiting photoluminescence at room temperature and as having a broad emission spectrum having a width at ½ maximum greater than 80 nm.Type: ApplicationFiled: January 30, 2009Publication date: August 13, 2009Inventors: Anthony K. Burrell, Thomas Mark Mccleskey, Quanxi Jia, Eve Bauer
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Publication number: 20090162673Abstract: A polymer-assisted deposition process for deposition of epitaxial cubic metal nitride films and the like is presented. The process includes solutions of one or more metal precursor and soluble polymers having binding properties for the one or more metal precursor. After a coating operation, the resultant coating is heated at high temperatures under a suitable atmosphere to yield metal nitride films and the like. Such films can be used as templates for the development of high quality cubic GaN based electronic devices.Type: ApplicationFiled: January 22, 2009Publication date: June 25, 2009Inventors: Anthony K. Burrell, Thomas Mark McCleskey, Quanxi Jia, Alexander H. Mueller, Hongmei Luo
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Publication number: 20080191168Abstract: An improved nanophosphor scintillator liquid comprises nanophosphor particles in a liquid matrix. The nanophosphor particles are optionally surface modified with an organic ligand. The surface modified nanophosphor particle is essentially surface charge neutral, thereby preventing agglomeration of the nanophosphor particles during dispersion in a liquid scintillator matrix. The improved nanophosphor scintillator liquid may be used in any conventional liquid scintillator application, including in a radiation detector.Type: ApplicationFiled: October 25, 2007Publication date: August 14, 2008Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Edward Allen MCKIGNEY, Anthony Keiran Burrell, Bryan L. Bennett, David Wayne Cooke, Kevin Curtis Ott, Minesh Kantilal Bacrania, Rico Emilio Del Sesto, Robert David Gilbertson, Ross Edward Muenchausen, Thomas Mark McCleskey