Patents Assigned to Research Triangle Institute
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Patent number: 8851693Abstract: A stimulated lighting device for stimulatable light emission including a luminescent sheet including light stimulatable particles which emit secondary light upon receiving primary light. The lighting device includes a source configured to generate and direct the primary light obliquely onto the luminescent sheet, at least one reflector configured to reflect at least a part of the primary light and a part of the secondary light onto the luminescent sheet and configured to reflect at least a part of scattered primary light and a part of the secondary light from the luminescent sheet toward the light exit, and a light exit configured to emanate light as a combination of the primary light and the secondary light.Type: GrantFiled: April 14, 2010Date of Patent: October 7, 2014Assignee: Research Triangle InstituteInventors: Michael Kasper Lamvik, James Lynn Davis
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Publication number: 20140287230Abstract: A fiber media and a filter device. The fiber media has a plurality of nanofibers formed of a polymer material, having diameters less than 1 micron, and formed into a fiber mat. A barrier layer is disposed on the nanofibers to prevent dissolution of the nanofibers in the fiber mat upon exposure of the fiber mat to a solvent of the polymer material. The barrier layer coated nanofibers have a maximum strain before breakage of at least 2%. The filter device includes the fiber media and a support attached to the fiber mat.Type: ApplicationFiled: November 9, 2012Publication date: September 25, 2014Applicants: RESEARCH TRIANGLE INSTITUTE, NORTH CAROLINA STATE UNIVERSITYInventors: Howard J. Walls, David S. Ensor, Christopher J. Oldham, Gregory N. Parsons
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Publication number: 20140261645Abstract: An electrode for solar conversion including a porous structure configured to contain therein at least one of an electrolyte, a catalyst, a chromophore, a redox couple, a hole-conducting polymer, an electron-conducting polymer, a semiconducting organic conjugated polymer, an electron acceptor, and a hole acceptor. The porous structure has a set of electrically conductive nanoparticles adjoining each other. The set of electrically conductive nanoparticles forms a meandering electrical path connecting the nanoparticles together. The porous structure has a semiconductive coating disposed conformally on the electrically conductive nanoparticles to form an exterior surface for reception of charge carriers.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: RESEARCH TRIANGLE INSTITUTEInventor: Paul Gerard Hoertz
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Publication number: 20140261646Abstract: An electrode for solar conversion including a porous structure configured to contain therein at least one of a catalyst, a chromophore, and a redox couple. The porous structure has a set of electrically conductive nanoparticles adjoining each other. The set of electrically conductive nanoparticles forms a meandering electrical path connecting the nanoparticles together. The porous structure has an atomic layer by layer deposited semiconductive coating disposed conformally on the electrically conductive nanoparticles to form an exterior surface for reception of charge carriers.Type: ApplicationFiled: March 18, 2014Publication date: September 18, 2014Applicants: RESEARCH TRIANGLE INSTITUTE, DUKE UNIVERSITY, NORTH CAROLINA STATE UNIVERSITY, UNIVERSITY OF NORTH CAROLINA CHAPEL HILLInventors: Paul G. HOERTZ, Qing PENG, Berc KALANYAN, Do Han KIM, Leila ALIBABAEI, Jie LlU, Thomas J. MEYER, Gregory N. PARSON, Jeffrey T. GLASS, Mark LOSEGO
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Publication number: 20140272799Abstract: A dental component comprising a modified porcelain veneering coating thereon is provided, wherein the porcelain veneering coating can comprise a plurality of crystalline inclusions. The crystalline inclusions can serve to strengthen the porcelain veneering coating and the dental component as a whole. A method for the preparation of such treated implants is also provided, the method involving providing a dental component; applying a porcelain slurry comprising about 5% or more by weight of an additive capable of forming a crystalline silicate phase to at least a portion of the surface of the dental component to give a coated dental component; and firing the porcelain-coated dental component.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: Research Triangle InstituteInventors: Jeffrey Robert Piascik, Brian R. Stoner
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Publication number: 20140257105Abstract: A fluid fillable catheter capsule assembly is provided suitable for use with an appropriate catheter in imaging applications for medical or surgical procedures. Methods of constructing such fluid fillable catheter capsule assemblies, methods of using the fluid fillable catheter capsule assemblies, and imaging systems provided with fluid fillable catheter capsule assemblies are provided.Type: ApplicationFiled: March 6, 2014Publication date: September 11, 2014Applicant: RESEARCH TRIANGLE INSTITUTEInventors: David E. Dausch, Theodore J. Mosler, Edward P. Browka, David L. Foshee, Jessie Delgado
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Publication number: 20140250846Abstract: A filtration device including a contoured support having 1) an interior surface, 2) an outside peripheral surface spaced farther from a center of the contoured support than the interior surface, and 3) a rim enclosed and sealed to a perimeter of the contoured support. The filtration device includes macroscopic openings in the contoured support extending from the interior surface to the outside peripheral surface, and a plurality of nanofibers having diameters less than 1 micron. The nanofibers are disposed on the outside peripheral surface of the contoured support, and cover the macroscopic openings to form a filtration medium on the contoured support.Type: ApplicationFiled: February 25, 2014Publication date: September 11, 2014Applicant: RESEARCH TRIANGLE INSTITUTEInventors: Howard Jerome WALLS, Randall J. Newsome, Anthony Clint Clayton, Robert W. Yaga, David Samuel Ensor
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Publication number: 20140239164Abstract: The present disclosure provides sensing systems and methods that are useful for monitoring materials (e.g., cement) via light diffusion to identify characteristics thereof and changes therein. The systems can utilize a light source, a light sensor, and light transmitting members combined with the material to be monitored. In use, light from the light source can be allowed to scatter through the material via the light transmitting members for detection by the light sensor. The data regarding the light transfer can be transmitted utilizing a communication interface and can be analyzed using data processing equipment. The systems and methods may particularly be utilized in monitoring the reinforcing cement positioned between the casing and the formation in an oil well.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Applicant: Research Triangle InstituteInventors: Ginger D. Rothrock, Mark W. Roberson, Vijay Gupta, Michele L. Ostraat, David F. Myers
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Publication number: 20140225063Abstract: A photodetector includes one or more photodiodes and a signal processing circuit. Each photodiode includes a transparent first electrode, a second electrode, and a heterojunction interposed between the first electrode and the second electrode. Each heterojunction includes a quantum dot layer and a fullerene layer disposed directly on the quantum dot layer. The signal processing circuit is in signal communication each the second electrode. The photodetector may be responsive to wavelengths in the infrared, visible, and/or ultraviolet ranges. The quantum dot layer may be treated with a chemistry that increases the charge carrier mobility of the quantum dot layer.Type: ApplicationFiled: April 16, 2014Publication date: August 14, 2014Applicant: Research Triangle InstituteInventors: ETHAN KLEM, JOHN LEWIS
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Publication number: 20140160723Abstract: A fiber-based reflective lighting device. The lighting device includes a source configured to generate a primary light, a substrate including a mat of reflective nanofibers, and a light exit configured to emanate the reflected light. The fibers have an average fiber diameter AFD less than 500 nm which diffusively reflects visible light upon illumination with at least the primary light. The mat has a basis weight less than 40 gram per square meter (gsm) and a reflectance greater than 80%.Type: ApplicationFiled: December 11, 2013Publication date: June 12, 2014Applicant: Research Triangle InstituteInventors: James Lynn Davis, Larry Charles Michael, Karmann C. Mills
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Patent number: 8742398Abstract: A photodetector includes one or more photodiodes and a signal processing circuit. Each photodiode includes a transparent first electrode, a second electrode, and a heterojunction interposed between the first electrode and the second electrode. Each heterojunction includes a quantum dot layer and a fullerene layer disposed directly on the quantum dot layer. The signal processing circuit is in signal communication each the second electrode. The photodetector may be responsive to wavelengths in the infrared, visible, and/or ultraviolet ranges. The quantum dot layer may be treated with a chemistry that increases the charge carrier mobility of the quantum dot layer.Type: GrantFiled: September 29, 2010Date of Patent: June 3, 2014Assignee: Research Triangle Institute, Int'l.Inventors: Ethan Klem, John Lewis
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Publication number: 20140144971Abstract: Low temperature bond balls connect two structures having disparate coefficients of linear thermal expansion. An integrated circuit is made to heat the device such that the low temperature bond balls melt. After melting, the bond balls solidify, and the device is operated with the bond balls solidified. In one example, one of the two structures is a semiconductor substrate, and the other structure is a printed circuit board. The integrated circuit is a die mounted to the semiconductor substrate. The bond balls include at least five percent indium, and the integrated circuit is an FPGA loaded with a bit stream. The bit stream configures the FPGA such that the FPGA has increased power dissipation, which melts the balls. After the melting, a second bit stream is loaded into the FPGA and the FPGA is operated in a normal user-mode using the second bit stream.Type: ApplicationFiled: January 29, 2014Publication date: May 29, 2014Applicant: Research Triangle InstituteInventors: Robert O. Conn, Daniel S. Stevenson
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Patent number: 8729528Abstract: An optoelectronic device includes a first electrode, a quantum dot layer disposed on the first electrode including a plurality of quantum dots, a fullerene layer disposed directly on the quantum dot layer wherein the quantum dot layer and the fullerene layer form an electronic heterojunction, and a second electrode disposed on the fullerene layer. The device may include an electron blocking layer. The quantum dot layer may be modified by a chemical treatment to exhibit increased charge carrier mobility.Type: GrantFiled: September 29, 2010Date of Patent: May 20, 2014Assignee: Research Triangle InstituteInventors: Ethan Klem, John Lewis
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Publication number: 20140129198Abstract: Computer-implemented methods and non-transitory computer readable storage media facilitate calculating outflow of water from a selected catchment. A computer-implemented method calculates an outflow of water from a selected catchment is calculated. An identification of a selected catchment from a plurality of catchments within a geographical area is received from a user workstation. A database of multilayered data is accessed, where the data includes hydrological data, geophysical data, and meteorological data for each of the plurality of catchments within the geographical area. From the multilayered data, one or more additional catchments are automatically identified within the plurality of catchments, to identify a group of navigated catchments that drain into the selected catchment. For a given time period, a model is generated determining an outflow of water from the selected catchment and the group of navigated catchments.Type: ApplicationFiled: November 8, 2013Publication date: May 8, 2014Applicant: Research Triangle Institute, Inc.Inventors: Michele Cutrofello Eddy, James Illiad Rineer, Brandon Louis Bergenroth, Robert Madison Dykes, Fekadu Game Moreda
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Patent number: 8714776Abstract: A method for producing a fiber membrane of nanofibers that have both smooth and porous surface features. The method includes materials processing using polymer mixes with solvents and melt polymers with additives. The method includes nanomaterial incorporation onto a fiber structure after formation of the fiber structure. The fiber structure can be a part of a nanoparticle carrier material, a nanoparticle disposal medium, a lighting medium, and a catalysis medium.Type: GrantFiled: May 13, 2009Date of Patent: May 6, 2014Assignee: Research Triangle InstituteInventors: Li Han, Anthony L. Andrady, James Lynn Davis
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Publication number: 20140119026Abstract: A fiber-based reflective lighting device and a housed lighting device. The fiber-based reflective lighting device which includes a source configured to generate a primary light, and a substrate having a nanocomposite mat of reflective fibers having a diameter less than 1,000 nm which diffusively reflects light upon illumination with at least the primary light. The nanocomposite mat includes a reflectance-enhancing coating conformally disposed around an outer surface of the fibers, having a refractive index different from the reflective fibers, and which increases a reflectance of the substrate in the visible spectrum. The lighting device includes a light exit configured to emanate the reflected light. The housed lighting device includes a housing, a source configured to generate primary light and direct the primary light into the housing, the reflective nanocomposite mat of reflective fibers, and a light exit in the housing configured to emanate the reflected light from the housing.Type: ApplicationFiled: June 1, 2012Publication date: May 1, 2014Applicant: RESEARCH TRIANGLE INSTITUTEInventors: James Lynn Davis, Kimberly A. Guzan, Karmann C. Mills, Michael K. Lamvik, James F. Bittle, Laura Haines
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Patent number: 8710717Abstract: Methods are provided for creating a metal or other electrically-conductive member extending from an air-backed cavity of a piezoelectric ultrasonic transducer (pMUT) apparatus defining such an air-backed cavity, through a substrate layer disposed adjacent to the transducer device of the pMUT device, and into electrically-conductive engagement with a first electrode of the pMUT device, such that the electrically-conductive member provides an electrically-conductive engagement between the first electrode and a conformal electrically-conductive layer deposited in the air-backed cavity of the pMUT device. Associated apparatuses are also provided.Type: GrantFiled: January 27, 2011Date of Patent: April 29, 2014Assignee: Research Triangle InstituteInventor: David Edward Dausch
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Publication number: 20140107157Abstract: The invention provides compounds capable of acting as antagonists at cannabanoid receptors according to the following formula: Such compounds may be used to treat conditions for which the cannabinoid receptor system has been implicated, such as obesity, liver disease, diabetes, pain, and inflammation.Type: ApplicationFiled: June 15, 2012Publication date: April 17, 2014Applicant: Research Triangle InstituteInventors: Alan Bradley Fulp, Rangan Maitra, Yanan Zhang, Herbert H. Seltzman
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Publication number: 20140104013Abstract: An apparatus, system, and method are disclosed for modulating electric current. An electron source electrode 202 provides a flow of electrons in a partial vacuum environment 116. An ionizable gas 118 in the partial vacuum environment 116 forms positively charged ion particles in response to impact with the electrons from the electron source electrode 202. Application of a bias voltage differential between a first bias electrode 204 and a second bias electrode 206 in the partial vacuum environment 116 forms an electric field gradient in a path of the flow of electrons. A collector electrode 208 in the partial vacuum environment 116 collects more electrons than ion particles when a collector electrode input voltage 106 is above a threshold, and collects more ion particles than electrons when the collector electrode input voltage 106 is below the threshold.Type: ApplicationFiled: June 21, 2012Publication date: April 17, 2014Applicant: RESEARCH TRIANGLE INSTITUTE, INTERNATIONALInventors: Brian Stoner, Jeffrey Piascik
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Patent number: 8696792Abstract: A fluidized reactor system for removing impurities from a gas and an associated process are provided. The system includes a fluidized absorber for contacting a feed gas with a sorbent stream to reduce the impurity content of the feed gas; a fluidized solids regenerator for contacting an impurity loaded sorbent stream with a regeneration gas to reduce the impurity content of the sorbent stream; a first non-mechanical gas seal forming solids transfer device adapted to receive an impurity loaded sorbent stream from the absorber and transport the impurity loaded sorbent stream to the regenerator at a controllable flow rate in response to an aeration gas; and a second non-mechanical gas seal forming solids transfer device adapted to receive a sorbent stream of reduced impurity content from the regenerator and transfer the sorbent stream of reduced impurity content to the absorber without changing the flow rate of the sorbent stream.Type: GrantFiled: September 28, 2010Date of Patent: April 15, 2014Assignee: Research Triangle InstituteInventors: Gunnar Henningsen, Teddy Merrill Knowlton, John George Findlay, Jerry Neal Schlather, Brian S. Turk