Patents Represented by Attorney Carol I. Ashby
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Patent number: 8349633Abstract: A denticulated Group III nitride structure that is useful for growing AlxGa1-xN to greater thicknesses without cracking and with a greatly reduced threading dislocation (TD) density.Type: GrantFiled: May 26, 2009Date of Patent: January 8, 2013Assignee: Sandia CorporationInventors: Andrew A. Allerman, Mary H. Crawford, Stephen R. Lee
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Patent number: 8324342Abstract: A porphyrin coordination polymer nanostructure comprising a network of pyridyl porphyrin molecules and coordinating metal ions coordinatively bound through the pyridyl groups. In some embodiments, the porphyrins are metalloporphyrins. A variety of nanostructures are formed by the network polymer, including nanospheres, polygonal nanostructures, nanorods, and nanofibers, depending on a variety of factors including coordination metal ion, porphyrin type, metal of the metalloporphyrin, and degree of agitation during nanostructure formation. Reduction of coordinating metal ions may be used to form metal nanoparticles on the coordination polymer nanostructure.Type: GrantFiled: June 13, 2007Date of Patent: December 4, 2012Assignee: Sandia CorporationInventors: Zhongchun Wang, John A. Shelnutt, Craig J. Medforth
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Patent number: 8304089Abstract: A metallic nanowire network synthesized using chemical reduction of a metal ion source by a reducing agent in the presence of a soft template comprising a tubular inverse micellar network. The network of interconnected polycrystalline nanowires has a very high surface-area/volume ratio, which makes it highly suitable for use in catalytic applications.Type: GrantFiled: December 13, 2007Date of Patent: November 6, 2012Assignee: Sandia CorporationInventors: Yujiang Song, John A. Shelnutt
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Patent number: 8291824Abstract: A monolithic exploding foil initiator (EFI) or slapper detonator and the method for making the monolithic EFI wherein the exploding bridge and the dielectric from which the flyer will be generated are integrated directly onto the header. In some embodiments, the barrel is directly integrated directly onto the header.Type: GrantFiled: July 8, 2010Date of Patent: October 23, 2012Assignee: Sandia CorporationInventors: Eric J. Welle, Paul T. Vianco, Paul S. Headley, Jason A. Jarrell, J. Emmett Garrity, Keegan P. Shelton, Stephen K. Marley
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Patent number: 8287832Abstract: A hydrothermal method of synthesis of a family of rare-earth Group 5 oxides, where the Group 5 oxide is a niobate or tantalate. The rare-earth Group 5 oxides can be doped with suitable emitter ions to form nanophosphors.Type: GrantFiled: September 15, 2010Date of Patent: October 16, 2012Assignee: Sandia CorporationInventors: May D. Nyman, Lauren E. S. Rohwer, James E. Martin
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Patent number: 8265870Abstract: A method for establishing a detection map of a dynamically configurable sensor network. This method determines an appropriate set of locations for a plurality of sensor units of a sensor network and establishes a detection map for the network of sensors while the network is being set up; the detection map includes the effects of the local terrain and individual sensor performance. Sensor performance is characterized during the placement of the sensor units, which enables dynamic adjustment or reconfiguration of the placement of individual elements of the sensor network during network set-up to accommodate variations in local terrain and individual sensor performance. The reconfiguration of the network during initial set-up to accommodate deviations from idealized individual sensor detection zones improves the effectiveness of the sensor network in detecting activities at a detection perimeter and can provide the desired sensor coverage of an area while minimizing unintentional gaps in coverage.Type: GrantFiled: January 20, 2010Date of Patent: September 11, 2012Assignee: Sandia CorporationInventors: Hung D. Nguyen, Mark W. Koch, Casey Giron, Daniel M. Rondeau, John L. Russell
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Patent number: 8131112Abstract: A method for distinguishing a normal cell from an abnormal cell, such as, for example a cancer cell or diseased cell, of the same tissue type using mitochondrial correlation microscopy.Type: GrantFiled: July 17, 2006Date of Patent: March 6, 2012Assignee: Sandia CorporationInventor: Paul L. Gourley
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Patent number: 8091479Abstract: A fluid blade disablement (FBD) tool that forms both a focused fluid projectile that resembles a blade, which can provide precision penetration of a barrier wall, and a broad fluid projectile that functions substantially like a hammer, which can produce general disruption of structures behind the barrier wall. Embodiments of the FBD tool comprise a container capable of holding fluid, an explosive assembly which is positioned within the container and which comprises an explosive holder and explosive, and a means for detonating. The container has a concavity on the side adjacent to the exposed surface of the explosive. The position of the concavity relative to the explosive and its construction of materials with thicknesses that facilitate inversion and/or rupture of the concavity wall enable the formation of a sharp and coherent blade of fluid advancing ahead of the detonation gases.Type: GrantFiled: June 18, 2009Date of Patent: January 10, 2012Assignee: Sandia CorporationInventors: Juan-Carlos Jakaboski, Chance G. Hughs, Steven N. Todd
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Patent number: 8075664Abstract: Metal nanostructures formed by photocatalytic interfacial synthesis using a porphyrin-stabilized emulsion template and the method for making the nanostructures. Catalyst-seeded emulsion droplets are employed as templates for hollow-nanoshell growth. The hollow metal nanospheres may be formed with or without inclusions of other materials.Type: GrantFiled: June 11, 2007Date of Patent: December 13, 2011Assignee: Sandia CorporationInventors: Haorong Wang, Yujiang Song, John A. Shelnutt, Craig J. Medforth
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Patent number: 8048242Abstract: A nanocomposite thermite ink for use in inkjet, screen, and gravure printing. Embodiments of this invention do not require separation of the fuel and oxidizer constituents prior to application of the ink to the printed substrate.Type: GrantFiled: April 5, 2007Date of Patent: November 1, 2011Assignee: Sandia CorporationInventors: Alexander S. Tappan, Joseph Cesarano, III, John N. Stuecker
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Patent number: 8037828Abstract: An explosive device that can generate a projectile from the opposite side of a wall from the side where the explosive device is detonated. The projectile can be generated without breaching the wall of the structure or container. The device can optionally open an aperture in a solid wall of a structure or a container and form a high-kinetic-energy projectile from the portion of the wall removed to create the aperture.Type: GrantFiled: December 17, 2008Date of Patent: October 18, 2011Assignee: Sandia CorporationInventors: Juan-Carlos Jakaboski, Chance G. Hughs, Steven N. Todd
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Patent number: 8009356Abstract: A tunable extraordinary optical transmission (EOT) device wherein the tunability derives from controlled variation of the dielectric constant of a semiconducting material (semiconductor) in evanescent-field contact with a metallic array of sub-wavelength apertures. The surface plasmon resonance wavelength can be changed by changing the dielectric constant of the dielectric material. In embodiments of this invention, the dielectric material is a semiconducting material. The dielectric constant of the semiconducting material in the metal/semiconductor interfacial region is controllably adjusted by adjusting one or more of the semiconductor plasma frequency, the concentration and effective mass of free carriers, and the background high-frequency dielectric constant in the interfacial region. Thermal heating and/or voltage-gated carrier-concentration changes may be used to variably adjust the value of the semiconductor dielectric constant.Type: GrantFiled: June 12, 2008Date of Patent: August 30, 2011Assignee: Sandia CorporationInventors: Eric A. Shaner, Daniel Wasserman
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Patent number: 7998239Abstract: A method of forming stable nanoparticles comprising substantially uniform alloys of metals. A high dose of ionizing radiation is used to generate high concentrations of solvated electrons and optionally radical reducing species that rapidly reduce a mixture of metal ion source species to form alloy nanoparticles. The method can make uniform alloy nanoparticles from normally immiscible metals by overcoming the thermodynamic limitations that would preferentially produce core-shell nanoparticles.Type: GrantFiled: November 18, 2009Date of Patent: August 16, 2011Assignee: Sandia CorporationInventors: Tina M. Nenoff, Dana A. Powers, Zhenyuan Zhang
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Patent number: 7947397Abstract: A battery component structure employing inorganic-silicate binders. In some embodiments, casting or coating of components may be performed using aqueous slurries of silicates and electrode materials or separator materials.Type: GrantFiled: January 10, 2007Date of Patent: May 24, 2011Assignee: Sandia CorporationInventors: Frank M. Delnick, Frederick W. Reinhardt, Judy G. Odinek
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Patent number: 7942097Abstract: A slapper detonator which integrally incorporates an optical wavequide structure for determining whether there has been degradation of the explosive in the explosive device that is to be initiated by the detonator. Embodiments of this invention take advantage of the barrel-like character of a typical slapper detonator design. The barrel assembly, being in direct contact with the energetic material, incorporates an optical diagnostic device into the barrel assembly whereby one can monitor the state of the explosive material. Such monitoring can be beneficial because the chemical degradation of the explosive plays an important in achieving proper functioning of a detonator/initiator device.Type: GrantFiled: March 4, 2009Date of Patent: May 17, 2011Assignee: Sandia CorporationInventors: M. Kathleen Alam, Randal L. Schmitt, Eric J. Welle, Sean P. Madden
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Patent number: 7943116Abstract: A method for forming non-agglomerated brookite TiO2 nanoparticles without the use of expensive organic surfactants or high temperature processing. Embodiments of this invention use titanium isopropoxide as the titanium precursor and isopropanol as both the solvent and ligand for ligand-stabilized brookite-phase titania. Isopropanol molecules serve as the ligands interacting with the titania surfaces that stabilize the titania nanoparticles. The isopropanol ligands can be exchanged with other alcohols and other ligands during or after the nanoparticle formation reaction.Type: GrantFiled: January 24, 2008Date of Patent: May 17, 2011Assignee: Sandia CorporationInventors: Dale L. Huber, Todd C. Monson
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Patent number: 7940377Abstract: A method for passive background correction during spatially or angularly resolved detection of emission that is based on the simultaneous acquisition of both the passive background spectrum and the spectrum of the target of interest.Type: GrantFiled: December 5, 2008Date of Patent: May 10, 2011Assignee: Sandia CorporationInventors: Randal L. Schmitt, Philip J. Hargis, Jr.
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Patent number: 7913534Abstract: A microfabricated field calibration assembly for use in calibrating analytical instruments and sensor systems. The assembly comprises a circuit board comprising one or more resistively heatable microbridge elements, an interface device that enables addressable heating of the microbridge elements, and, in some embodiments, a means for positioning the circuit board within an inlet structure of an analytical instrument or sensor system.Type: GrantFiled: January 10, 2007Date of Patent: March 29, 2011Assignee: Sandia CorporationInventors: Alex L. Robinson, Ronald P. Manginell, Matthew W. Moorman, Philip J. Rodacy, Robert J. Simonson
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Patent number: 7915626Abstract: A denticulated Group III nitride structure that is useful for growing AlxGa1-xN to greater thicknesses without cracking and with a greatly reduced threading dislocation (TD) density.Type: GrantFiled: August 15, 2006Date of Patent: March 29, 2011Assignee: Sandia CorporationInventors: Andrew A. Allerman, Mary H. Crawford, Daniel D. Koleske, Stephen R. Lee
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Patent number: 7908970Abstract: A Dual Initiation Strip Charge (DISC) apparatus is initiated by a single initiation source and detonates a strip of explosive charge at two separate contacts. The reflection of explosively induced stresses meet and create a fracture and breach a target along a generally single fracture contour and produce generally fragment-free scattering and no spallation. Methods for making and implementing a DISC apparatus provide numerous advantages over previous methods of creating explosive charges by utilizing steps for rapid prototyping; by implementing efficient steps and designs for metering consistent, repeatable, and controlled amount of high explosive; and by utilizing readily available materials.Type: GrantFiled: November 13, 2007Date of Patent: March 22, 2011Assignee: Sandia CorporationInventors: Juan-Carlos Jakaboski, Steven N. Todd, Stephen Polisar, Chance Hughs