Patents Examined by Kourtney S Carlson
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Patent number: 8940153Abstract: A test sensor reagent for measuring the concentration of analytes in body fluids includes cellulose polymers for improving the stability of the test sensor and reducing the total assay time. The test sensor reagent also includes an enzyme, an electron transfer mediator and a rheological additive.Type: GrantFiled: November 13, 2006Date of Patent: January 27, 2015Assignee: Bayer Healthcare LLCInventors: Amy H. Chu, Andrew J. Edelbrock, Hope G. Spradlin
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Patent number: 8888978Abstract: An electrochemical oxygen sensor is provided. The electrochemical sensor includes a housing having first and second compartments, a sensing electrode disposed within the first compartment of the housing, a consumable anode disposed within the second compartment of the housing, a porous separator between the sensing electrode and consumable electrode that separates the first and second compartments and an electrolyte saturating the porous separator and consumable anode. A first aperture on a first end of the housing extends between an outside surface of the housing and first compartment that allows gas access to the sensing electrode. A venting system on a second, opposing end of the housing includes a second aperture extending between the outside surface of the housing and second compartment and has a predetermined permeability that controls pressure in the second compartment and loss of moisture from the sensor.Type: GrantFiled: February 28, 2012Date of Patent: November 18, 2014Assignee: Life Safety Distribution AGInventors: Graeme Ramsay Mitchell, Martin Williamson, Stuart Harris
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Patent number: 8852416Abstract: Particles may be injected into a matrix for concentration by scodaphoresis using a quadrupole injection field. Particles may be injected from two or more sample chambers simultaneously. Particle injection may be performed simultaneously with performing scodaphoresis. In some embodiments the particles are concentrated into a well containing fluid. The well can extend out of a plane of the matrix. Altering the relative phases of components of a scodaphoresis field permits concentration of selected particles and exclusion of other particles. Scodaphoresis methods may be applied to DNA, other bio-molecules and other particles.Type: GrantFiled: June 24, 2013Date of Patent: October 7, 2014Assignee: The University of British ColumbiaInventors: Andrea Marziali, David John Broemeling, Dylan Corey Gunn, Peter Jason Eugster, Joel Pel
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Patent number: 8841539Abstract: A thermoelectric device based on a multilayer structure having alternate layers of metal/material mixture. The alternate layers have differing metal content. The layer structure is irradiated with ionizing radiation to produce nanoclusters in the layers. The differing metal content serves to quench the nanoclusters to isolate nanoclusters along the radiation track. The result is a thermoelectric device with a high figure of merit. In one embodiment, the multilayer structure is fabricated and then irradiated with high energy radiation penetrating the entire layer structure. In another embodiment, layers are irradiated sequentially during fabrication using low energy radiation.Type: GrantFiled: March 25, 2012Date of Patent: September 23, 2014Assignee: Fayetteville State UniversityInventor: Daryush Ila
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Patent number: 8778160Abstract: Particle separation apparatus separate particles and particle populations using dielectrophoretic (DEP) forces generated by one or more pairs of electrically coupled electrodes separated by a gap. Particles suspended in a fluid are separated by DEP forces generated by the at least one electrode pair at the gap as they travel over a separation zone comprising the electrode pair. Selected particles are deflected relative to the flow of incoming particles by DEP forces that are affected by controlling applied potential, gap width, and the angle linear gaps with respect to fluid flow. The gap between an electrode pair may be a single, linear gap of constant gap, a single linear gap having variable width, or a be in the form of two or more linear gaps having constant or variable gap width having different angles with respect to one another and to the flow.Type: GrantFiled: July 26, 2011Date of Patent: July 15, 2014Assignee: CFD Research CorporationInventors: Kapil Pant, Yi Wang, Ketan Bhatt, Balabhasker Prabhakarpandian
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Patent number: 8741120Abstract: Devices and methods are disclosed that can adjust a hydration level in an electrochemical sensor or an instrument which includes such a sensor. The device can include a chamber which can, at least in part, surround an inflow port of the sensor. An adjacent reservoir of water can provide a source of water vapor which can be infused into the sensor.Type: GrantFiled: October 15, 2007Date of Patent: June 3, 2014Assignee: Life Safety Distribution AGInventors: John Chapples, Martin Willett
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Patent number: 8715480Abstract: An electrokinetic pump achieves high and low flow rates without producing significant gaseous byproducts and without significant evolution of the pump fluid. A first feature of the pump is that the electrodes in the pump are capacitive with a capacitance of at least 10?4 Farads/cm2. A second feature of the pump is that it is configured to maximize the potential across the porous dielectric material. The pump can have either or both features.Type: GrantFiled: May 2, 2012Date of Patent: May 6, 2014Assignee: Eksigent Technologies, LLCInventors: Deon S. Anex, Phillip H. Paul, David W. Neyer
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Patent number: 8696880Abstract: A biosensor (102) for determining the presence or amount of a substance in a sample and methods of use of the biosensor (102) are provided. The biosensor (102) for receiving a user sample to be analyzed includes a mixture for electrochemical reaction with an analyte. The mixture includes an enzyme, a mediator and an oxidizable species as an internal reference.Type: GrantFiled: February 4, 2005Date of Patent: April 15, 2014Assignee: Bayer HealthCare LLCInventors: Greg P. Beer, Huan-Ping Wu, Kin-Fai Yip
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Patent number: 8691073Abstract: An electrochemical sensor strip has a base and a first electrode and a second electrode on the base. An oxidoreductase enzyme and a mediator are on the first electrode, and a soluble redox species is on the second electrode. The soluble redox species may be an organotransition metal complex, a transition metal coordination complex, an electroactive organic molecule, or mixtures thereof.Type: GrantFiled: August 22, 2011Date of Patent: April 8, 2014Assignee: Bayer HealthCare LLCInventors: Huan-Ping Wu, Greg P. Beer, Christina Blaschke
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Patent number: 8685227Abstract: The invention refers to a sample fluid testing device for analyzing a sample fluid, comprising a test media tape (1) comprising a tape (2) and a plurality of test media portions (3), each test media portion (3) containing a sensor field (7) for producing electrical signals, when the sample fluid is applied and at least two electrodes (4), the at least two electrodes (4) being positioned in the sensor field (7) and being electrically connected to at least two contact fields (5). The sample fluid testing device contains at least one roller with a surface (17), which contains at least one contact zone (14), the at least one roller (12, 13) being in rolling engagement with the test media tape (1) with its surface (17) in order to successively electrically contact the test media portions (3) via at least one contact field (5) with the at least one contact zone (14), the at least one contact zone (14) on the at least one roller (12, 13) being electrically connected to a meter for measuring the electrical signals.Type: GrantFiled: October 24, 2008Date of Patent: April 1, 2014Assignee: Roche Diagnostics Operations, Inc.Inventors: Hans List, Michael Marquant, Steven N. Roe
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Patent number: 8652320Abstract: A biosensor strip having a low profile for reducing the volume of liquid sample needed to perform an assay. In one embodiment, the biosensor strip includes an electrode support; an electrode arrangement on the electrode support; a cover; a sample chamber; and an incompressible element placed between the cover and the electrode support, the incompressible element providing an opening in at least one side or in the distal end of the sample chamber to provide at least one vent in the sample chamber. In another embodiment, the biosensor strip has an electrode support; an electrode arrangement on the electrode support; a cover; and a sample chamber, the cover having a plurality of openings formed therein, at least one of the openings in register with the sample chamber. The invention further includes methods for preparing such a biosensor strips in a continuous manner.Type: GrantFiled: August 6, 2012Date of Patent: February 18, 2014Assignee: Abbott LaboratoriesInventors: Adrian Petyt, Matthew Bates, Pamela Reid, Andrew J. Bull, Jeff Garner
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Patent number: 8580095Abstract: A sensor element for determining a gas component in a measuring gas includes a first and a second electrode, a solid electrolyte situated between the electrodes, a heater having a heating element, and an insulation surrounding the heating element, wherein the heating element has a meander pattern having a first external heating area, a second external heating area, a first internal heating area, and a second internal heating area.Type: GrantFiled: February 8, 2007Date of Patent: November 12, 2013Assignee: Robert Bosch GmbHInventors: Thomas Wahl, Philipp Spies, Lothar Diehl, Ralf Liedtke
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Patent number: 8562793Abstract: The invention pertains to utilization of high power density microwave energy to reduce organic compounds to carbon and their constituents, primarily in a gaseous state. The process includes, but is not limited to, scrap tires, plastics, asphalt roofing shingles, computer waste, medical waste, municipal solid waste, construction waste, shale oil, and PCB/PAH/HCB-laden materials. The process includes the steps of feeding organic material into a microwave applicator and exposing the material to microwave energy fed from at least two linear polarized sources in non-parallel alignment to each other, and collecting the material. The at least two sources of microwave energy are from a bifurcated waveguide assembly, whose outputs are perpendicular to each other and fed through waveguide of proper impedance, such that the microwave sources are physically and electrically 90° out of phase to each other. The microwave frequency is between 894 and 1000 MHz, preferably approximately 915 MHz.Type: GrantFiled: September 14, 2012Date of Patent: October 22, 2013Inventor: John F. Novak
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Patent number: 8486255Abstract: A primary pump current is directed through a primary electrochemical cell system between first and second constant primary pump currents to direct a first ion flow into and out from a shared measuring chamber. A first output signal generated by the primary electrochemical cell system in accordance with a first ion concentration within the shared measuring chamber is detected. A second output signal generated by a secondary electrochemical cell system in accordance with a second ion concentration within the shared measuring chamber is also detected. Based on a relationship between the first and second output signals, a secondary pump current is directed through the secondary electrochemical cell system between first and second constant secondary pump currents to direct a second ion flow into and out from the shared measuring chamber.Type: GrantFiled: June 6, 2008Date of Patent: July 16, 2013Assignee: EmiSense Technologies, LLCInventor: Klaus K. Allmendinger
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Patent number: 8486256Abstract: Methods and systems for simultaneously measuring concentration of two or more different cations in solution. The methods include the steps of applying a steady state polarization technique to a solution comprising two or more different cations; measuring the limiting currents of the solution; and correlating the limiting currents with the concentration of the different cations. The system includes a working electrode; a potentiostat; a counter electrode; a reference electrode; a solution comprising different cations to be analyzed; and a model for correlating the limiting currents with the concentration of the pair cations. The working electrode may be any electrode compatible with the media, including noble metals, carbon, or combinations thereof. In some embodiments, the working electrode is a rotating disk electrode (RDE).Type: GrantFiled: May 8, 2007Date of Patent: July 16, 2013Assignee: Ohio UniversityInventors: Gerardine G. Botte, Xin Jin
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Patent number: 8475641Abstract: Particles may be injected into a matrix for concentration by scodaphoresis using a quadrupole injection field. Particles may be injected from two or more sample chambers simultaneously. Particle injection may be performed simultaneously with performing scodaphoresis. In some embodiments the particles are concentrated into a well containing fluid. The well can extend out of a plane of the matrix. Altering the relative phases of components of a scodaphoresis field permits concentration of selected particles and exclusion of other particles. Scodaphoresis methods may be applied to DNA, other bio-molecules and other particles.Type: GrantFiled: January 30, 2009Date of Patent: July 2, 2013Assignee: The University of British ColumbiaInventors: Andrea Marziali, David John Broemeling, Dylan Corey Gunn, Peter Jason Eugster, Joel Pel
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Patent number: 8470147Abstract: A sensor for detecting a gas is provided. The gas sensor may have a sensing section, a heating section, and a resistance temperature detector. The resistance temperature detector may be co-fired to be integral with at least one of the sensing section and the heating section.Type: GrantFiled: May 30, 2008Date of Patent: June 25, 2013Assignee: Caterpillar Inc.Inventors: Balakrishnan G. Nair, Jesse Nachlas, Gangqiang Wang
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Patent number: 8470141Abstract: A magnetron sputtering electrode for use within a magnetron sputtering device that includes a cathode body, a target receiving area defined adjacent the cathode body, a plurality of magnets received within a magnet receiving chamber and an anode shield surrounding the cathode body. At least a portion of a coolant passageway is defined by the anode shield, whereby the coolant passageway is adapted to receive coolant to circulate therethrough thereby cooling the anode shield.Type: GrantFiled: April 26, 2006Date of Patent: June 25, 2013Assignee: Angstrom Sciences, Inc.Inventor: Mark A. Bernick
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Patent number: 8445772Abstract: A thermoelectric power generator is disclosed for use to generate electrical power from heat, typically waste heat. An intermediate heat transfer loop forms a part of the system to permit added control and adjustability in the system. This allows the thermoelectric power generator to more effectively and efficiently generate power in the face of dynamically varying temperatures and heat flux conditions, such as where the heat source is the exhaust of an automobile, or any other heat source with dynamic temperature and heat flux conditions.Type: GrantFiled: October 14, 2009Date of Patent: May 21, 2013Assignee: BSST, LLCInventors: Lon E. Bell, Douglas Todd Crane
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Patent number: 8431816Abstract: An apparatus and methods for solar conversion using nanoscale cometal structures are disclosed herein. The cometal structures may be coaxial and coplanar. A nanoscale optics apparatus for use as a solar cell comprises a plurality of nanoscale cometal structures each including a photovoltaic material located between a first electrical conductor and a second electrical conductor. A method of fabricating solar cells comprises preparing a plurality of nanoscale planar structures; coating a plurality of planar surfaces of the plurality of planar structures with a photovoltaic semiconductor while leaving space between the plurality of planar surfaces; and coating the photovoltaic semiconductor with an outer electrical conductor layer, wherein a portion of the outer electrical conductor layer is located between the planar structures to form coplanar structures.Type: GrantFiled: April 22, 2011Date of Patent: April 30, 2013Assignee: The Trustees of Boston CollegeInventors: Krzysztof J. Kempa, Michael J. Naughton, Zhifeng Ren, Jakub A. Rybczynski