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| Number | Title | Issue Date |
| 7968058 | System and method for coding information on a biosensor test strip The present invention provides a test strip for measuring a concentration of an analyte of interest in a biological fluid, wherein the test strip may be encoded with information that can be read by a test meter into which the test strip is inserted. In one embodimen... | 06/28/2011 |
| 7897105 | pH indicator A pH indicator comprising a solid substrate coated at least partially by at least one layer of at least one substance, wherein said the and the substrate are having different colors and wherein the at least one substance is selected to dissolve or to decompose when ... | 03/01/2011 |
| 7892487 | Useful life indicators A useful life indicator is provided to display an indication of the remaining useful life of an associated product such as an impregnated substrate of an air treatment chemical dispenser. The cue is preferably a well having a volatile indicator material positioned t... | 02/22/2011 |
| 7785533 | Chip, device using the chip, and method of using the same A channel formed on a chip is opened without contaminating contents of the channel. Channels (107a) and (107b) provided on a substrate (103) are covered by pressing a lid (113) composed of a resin layer (102) and a pl... | 08/31/2010 |
| 7744815 | Device for determining chlorine dioxide and method A device and a method are provided for determining chlorine dioxide, especially in the presence of chlorine as a foreign gas. In the device the gas sample is exposed at first to a reagent for removing chlorine and subsequently to an indicator or to an electrochemica... | 06/29/2010 |
| 7708944 | Ultra-sensitive, portable capillary sensor A portable, lightweight, rugged, easy-to-operate biosensor useful for rapidly detecting cells, viruses, antibodies, and other proteins. A capillary tube has a capture antibody immobilized on its interior surface. The specific capture antibody is selected based upon ... | 05/04/2010 |
| 7700041 | Indirect detection of radiation sources through direct detection of radiolysis products A system for indirectly detecting a radiation source by directly detecting radiolytic products. The radiation source emits radiation and the radiation produces the radiolytic products. A fluid is positioned to receive the radiation from the radiation source. When th... | 04/20/2010 |
| 7569183 | Fecal assay method and analyzer A fecal analyzing apparatus includes an extraction/dilution section (43) for extracting a fecal suspension from a feces sampling container (1). The fecal suspension is formed by dispersing feces in a feces-dissolving liquid in the feces sampling contai... | 08/04/2009 |
| 7459124 | Detecting interactions at biomimetic interfaces with liquid crystals A method of forming a liquid crystal device, includes: contacting an aqueous solution comprising a surfactant and a receptor molecule with a top surface of a liquid crystal. The liquid crystal is in a holding compartment of a substrate, and the receptor molecule is ... | 12/02/2008 |
| 7442557 | Bi-directional flow assay device with reagent bridge A device for conducting an assay to determine the presence or amount of an analyte in a fluid sample. The device includes a flow path that facilitates fluidic flow by capillary action. The flow path has a first fluid permeable region, a second fluid permeable region... | 10/28/2008 |
| 7438856 | Microfluidic devices and methods Embodiments of the invention are directed to microfluidic devices. In one embodiment, a microanalysis chip comprises a body having at least one transfer-separation channel with a channel bottom that has a bottom opening. The transfer-separation channel terminates in... | 10/21/2008 |
| 7438851 | Microsensor with a well having a membrane disposed therein A micromachined device such as a solid-state liquid chemical sensor for receiving and retaining a plurality of separate liquid droplets at desired sites, a method of making the device and a method of using the device are provided. The technique works for both aqueou... | 10/21/2008 |
| 7439079 | Assay devices having detection capabilities within the hook effect region A lateral flow assay device for detecting the presence or quantity of an analyte within a test sample is provided. The device utilizes multiple zones, one of which serves as an indicator of whether or not the analyte in the test sample is within the “hook effectâ€... | 10/21/2008 |
| 7438853 | Photoelectrocatalytic method and photoelectrochemical detector for electrochemical analysis A photoelectrocatalytic method for detecting current that illuminates a photoelectrochemical electrode to generate a photocurrent and to magnify the current. Thereby, accuracy of the detection is increased. A photoelectrochemical detector used in the method has a ba... | 10/21/2008 |
| 7438852 | Sample collection cup with integrated sample analysis system The present invention is directed to devices and methods for collecting liquid samples and of testing the sample for the presence of an analyte of interest and/or a physical property. In one embodiment the device is a urine cup having an interior for containing a li... | 10/21/2008 |
| 7435391 | Light-mediated micro-chemical reactors A chemical reactor includes two substrates that are joined along a surface and a chemical reaction chamber formed between the substrates. The chemical reaction chamber has a hollow interior and one or more light reflectors located along walls of the hollow interior.... | 10/14/2008 |
| 7431882 | Drug test kit The assaying apparatus provides a kit in a collection cup for collecting and analyzing a urine sample for drugs or drug metabolites. In one embodiment, a separator member is disposed in the interior of the cup, separating an isolated liquid sample space from the ass... | 10/07/2008 |
| 7419635 | Pd/VOdevice for colorimetric Hdetection A sensor structure for chemochromic optical detection of hydrogen gas over a wide response range, that exhibits stability during repeated coloring/bleaching cycles upon exposure and removal of hydrogen gas, comprising: a glass substrate (20); a vanadium oxide... | 09/02/2008 |
| 7419636 | Vapor sensing instruments for ultra trace chemical detection A detector for detecting vapors emitted from analytes includes a housing, a pump and a sensing assembly. The housing has an inlet, an outlet and an enclosed sensing volume therebetween. The pump communicates with the housing for moving a carrier sequentially through... | 09/02/2008 |
| 7416703 | Polymer based lanthanide luminescent sensors for the detection of organophosphorus compounds A device for measuring and detecting the organophosphonis compounds, such as a pesticides or a nerve agents is provided. The devices function by selectively binding an organophosphorous compound to a luminescent functionality-imprinted copolymer. The copolymers poss... | 08/26/2008 |
| 7410809 | Particle or cell analyzer and method A particle analyzer in which tagged particles to be analyzed are drawn through a suspended capillary tube where a predetermined volume in the capillary tube is illuminated. The illumination scattered by said particles is detected by a detector to count all particles... | 08/12/2008 |
| 7410612 | Gunpowder particle test kit A gunpowder particle test kit for determining gunpowder residue includes a transparent sleeve having a closed end and an open folded end sealed with a clip forming a sealed cavity carrying a test strip and a crushable ampoule carrying a diphenylamine solution. The t... | 08/12/2008 |
| 7407628 | Biosensor and method of manufacturing biosensor Aspects of the invention can be an inexpensive biosensor capable of measuring a number of samples in a short time, and suitable for only one-time use (expendable). The biosensor according to the invention can include a light transmissive substrate, a probe fixing re... | 08/05/2008 |
| 7402441 | Method of detecting an analyte in a fluid A method for the detection of an analyte in a fluid, comprising contacting the fluid with a holographic element comprising a medium and a hologram disposed throughout the volume of the medium, wherein an optical characteristic of the element changes as a result of a... | 07/22/2008 |
| 7399445 | Chemical sensor A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and... | 07/15/2008 |
| 7399628 | Body for flow-through cells and the use thereof A system of flow-through cells is obtained by assembling a body with a base plate. The body has a first spring element and a first stop, disposed on opposite end sections of the body, at least one second spring element and a corresponding second stop, disposed on op... | 07/15/2008 |
| 7396675 | Kit and method for determining a plurality of analytes The invention is related to different embodiments of a kit for the simultaneous qualitative and/or quantitative determination of a multitude of analytes comprising a sensor platform comprising an optical thin-film waveguide with a ... | 07/08/2008 |
| 7393693 | Methods and procedures for stabilization and performance optimization of multi-layer sol-gel chemical and biochemical sensors A sensor and method for making a sensor includes providing a substrate having an adhesion layer with a first functional group operatively associated with a sol-gel composition having a second functional group, and at least one linker material for connecting the firs... | 07/01/2008 |
| 7393442 | Ex-situ PEM fuel cell testing: towards visualizing gas diffusion The invention comprises novel apparatuses and testing methods for evaluating a fluid diffusion component. The apparatus includes a fluid capable of undergoing oxidation or reduction, a half-cell electrode assembly able to receive the fluid, and a change in acidity i... | 07/01/2008 |
| 7393504 | Flow injection electrochemical detecting device A flow injection electrochemical detecting device has a base (10), a cover pivotally mounted on the base (10), and a locking device attached between the base (10) and the cover (20). The base (10) has a recess (12) defined i... | 07/01/2008 |
| 7390462 | Ratiometric fluorescent pH sensor for non-invasive monitoring The present invention provides ratiometric fluorescent pH sensors for non-invasive, continuous monitoring of pH in such applications as fermentation processes. The ratiometric fluorescent pH sensors comprise a fluorescent dye that exhibits a shift in excitation wave... | 06/24/2008 |
| 7387892 | Biosensor using microdisk laser A compact sensor for detecting the presence of biological or chemical species includes a microdisk laser and a wavelength shift detector. The microdisk laser is coated with a biological or chemical recognition element, which binds preferentially with a target analyt... | 06/17/2008 |
| 7384602 | Chemical analysis apparatus and genetic diagnostic apparatus In a chemical analysis apparatus for extracting a specific substance, such as nucleic acid, from a sample containing a plurality of chemical substances, solutions remaining in valves are prevented so that a reagent in an earlier step does not contaminate the subsequ... | 06/10/2008 |
| 7381571 | Device and method for analyte detection The invention is directed to a method and device for simultaneously testing a sample for the presence, absence, and/or amounts of one or more of a plurality of selected analytes. The invention includes, in one aspect, a device for detecting or quantitating a plurali... | 06/03/2008 |
| 7381569 | Device and method for multiple analyte detection The invention is directed to a method and device for simultaneously testing a sample for the presence, absence, and/or amounts of one or more of a plurality of selected analytes. The invention includes, in one aspect, a device for detecting or quantitating a plurali... | 06/03/2008 |
| 7381570 | Device and method for multiple analyte detection The invention is directed to a method and device for simultaneously testing a sample for the presence, absence, and/or amounts of one or more of a plurality of selected analytes. The invention includes, in one aspect, a device for detecting or quantitating a plurali... | 06/03/2008 |
| 7381374 | Immunoassay devices and methods of using same An immunoassay cartridge for sensing at least one analyte in a biological sample is disclosed. The immunoassay cartridge comprises a supporting plate, a reaction cavity made within the supporting plate and having at least one analyte-binding molecule immobilized the... | 06/03/2008 |
| 7378056 | Circuits for in vivo detection of biomolecule concentrations using fluorescent tags Methods are disclosed wherein labeled antibodies can be provided in vivo to tissue having antigens that specifically bind the labeled antibody. A first optical radiation is emitted into the tissue in vivo to excite the labeled antibody bound to the antigen in vivo. ... | 05/27/2008 |
| 7371562 | Guided mode resonant filter biosensor using a linear grating surface structure Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters. ... | 05/13/2008 |
| 7371247 | Method and apparatus for penetrating tissue A tissue penetrating system includes a plurality of penetrating members each having a tip. A penetrating member driver is coupled to the plurality of penetrating members. Each tip of a penetrating member is uncovered during launch of the penetrating member by the pe... | 05/13/2008 |
