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Class 422/82.01 - Measuring electrical property


Subclass of Class 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
Definition: Apparatus having means for measuring an electrical property
No. of patents: 796
Last issue date: 05/22/2012


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NumberTitleIssue Date
8182746Electrophoresis process using a valve system
An electrophoresis apparatus is generally disclosed for sequentially analyzing a single sample or multiple samples having one or more analytes in high or low concentrations. The apparatus comprises a relatively large-bore transport capillary which intersects with a ...
05/22/2012
8173071Micro-fluidic test apparatus and method
An apparatus, system, and method for determining the osmolarity of a fluid. The apparatus includes at least one micro-fluidic circuit and at least one electrical circuit disposed in communication with the at least one micro-fluidic circuit for determining a property...
05/08/2012
8168120Reliable switch that is triggered by the detection of a specific gas or substance
A sensor, having a resonant frequency responsive to presence of an analyze, comprising a DC electrostatic excitation component, to produce a static force pulling a moveable element toward a backplate; an AC electrostatic excitation component, to produce an oscillati...
05/01/2012
8163240Detection device and system
A detection device and system are provided. The detection device includes a detection capacitor and a Field Effect Transistor (FET). The detection capacitor has a reactive material layer reacting to a specific functional group in a fluid, and first and second electr...
04/24/2012
8142721Test strip with slot vent opening
A test strip with a covering layer having a novel slot. The slot divides the inventive covering layer into two parts and provides a vent opening that allows air to escape as fluid enters a cavity or sample receiving chamber formed in the test strip. In preferred emb...
03/27/2012
8105538Robust low resistance vapor sensor materials
Compositions for sensor films used for detecting chemical analytes within sensors, such as polymer-absorption chemiresistors (i.e., conductometric sensors) are provided. Robust sensor film compositions that have low resistance, high conductivity, and greater tempera...
01/31/2012
8084002Chemical sensing device
The present application relates to a chemical sensing device for detecting an analyte in a liquid sample containing suspended particles. The device comprises a radiation source adapted to generate electromagnetic radiation, a transducer (3) having a pyroelect...
12/27/2011
8080205Analyte meter protectors and methods
Analyte meter protectors, meters that include the same, and methods. In one example, a ketone monitoring system is provided wherein a port protector is used in combination with a meter. ...
12/20/2011
8071030Test strip with flared sample receiving chamber
A test strip with a sample receiving chamber having a novel flared portion that terminates in a sample receiving opening. The flared portion provides a reservoir from which sample fluid can be drawn into the capillary or sample receiving chamber. The wider opening p...
12/06/2011
8071031Device for in situ calibrated potentiometric pH measurements
A device for the precise and accurate potentiometric pH measurements in situ. Embodiments of a potentiometric device according to the invention consist of one or more glass pH-sensitive electrodes connected to a potentiometer. A key feature of the device is that, ra...
12/06/2011
8066945Detection apparatus for biological materials and methods of making and using the same
Apparatus comprising a surface site comprising a substantially inorganic surface having a chemical composition selected from the group consisting of metals, semiconductors, insulators, and mixtures thereof, the surface positioned within a polypeptide bonding region ...
11/29/2011
8052931Ultra low-power CMOS based bio-sensor circuit
An apparatus configured to identify a material having an electric charge, the apparatus having: an inverting gain amplifier including a first field-effect transistor (FET) coupled to a second FET; wherein a gate of the first FET is configured to sense the electric c...
11/08/2011
8043563Electronic biosensor arrangement
An electronic biosensor arrangement (1), comprising a receiving region (2) for biological material, a sensor-electrode arrangement (3) with sensor electrodes (3a, 3b) which intermesh in a comb-like manner being associ...
10/25/2011
8038944Electrokinetic device for capturing assayable agents in a dielectric fluid
Electrokinetic devices and methods are described with the purpose of collecting assayable agents from a dielectric fluid medium. Electrokinetic flow may be induced by the use of plasma generation at high voltage electrodes and consequent transport of charged particl...
10/18/2011
8038943Method of detecting bio-molecules using field effect transistor without fixing probe bio-molecules on the gate sensing surface
A method of detecting a presence of bio-molecules, or a concentration of the target bio-molecules using a field effect transistor, includes allowing a first sample including a first target bio-molecule to contact a sensing surface of the field effect transistor and ...
10/18/2011
8017078Blood cell analyzer, blood cell analyzing method, and computer program product
A blood cell analyzer is provided with a first detection unit for electrically detecting blood cells in blood sample; a second detection unit for optically detecting blood cells in blood sample; a volume information obtainer for obtaining volume information of red b...
09/13/2011
8012420Robust low resistance vapor sensor materials
Compositions for sensor films used for detecting chemical analytes within sensors, such as polymer-absorption chemiresistors (i.e., conductometric sensors) are provided. Robust sensor film compositions that have low resistance, high conductivity, and greater tempera...
09/06/2011
8007724Electrophoresis apparatus having at least one auxiliary buffer passage
An electrophoresis apparatus is generally disclosed for sequentially analyzing a single sample or multiple samples having one or more analytes in high or low concentrations. The apparatus comprises a relatively large-bore transport capillary which intersects with a ...
08/30/2011
8007726Microarray bioprobe device integrated with an amplifier having bottom-gate thin film transistors
The present invention provides a microarray bioprobe device integrated with an amplifier having bottom-gate thin film transistors. The present invention utilizes a micro-electro-mechanical process as well as a semiconductor process to integrate microarray bioprobes ...
08/30/2011
8007725Electrophoresis apparatus having valve system
An electrophoresis apparatus is generally disclosed for sequentially analyzing a single sample or multiple samples having one or more analytes in high or low concentrations. The apparatus comprises a relatively large-bore transport capillary which intersects with a ...
08/30/2011
8007727Virtual semiconductor nanowire, and methods of using same
A multiple-gate field-effect transistor includes a fluid in a top gate, two lateral gates, and a bottom gate. The multiple-gate field-effect transistor also includes a patterned depletion zone and a virtual depletion zone that has a lesser width than the patterned d...
08/30/2011
7988917Analytical test element with wireless data transmission
The present invention concerns embodiments of a system for determining the concentration of an analyte in a body fluid which comprises an analytical test element and an instrument separate therefrom, wherein at least a part of the electrical components of the system...
08/02/2011
7985377Apparatus for monitoring chlorine concentration in water
Apparatus (2) for monitoring chlorine in water (4), which apparatus (2) comprises a flow cell (6), the flow cell (6) containing a chlorine sensor (62) and an automatic calibration system, and the automatic calibration system...
07/26/2011
7981363System and method for analyte measurement
A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC response is determined using the AC response; and a concentration of the an...
07/19/2011
RE42560Electrochemical biosensor test strip
An electrochemical biosensor test strip with four new features. The test strip includes an indentation for tactile feel as to the location of the strips sample application port. The sample application port leads to a capillary test chamber, which includes a test rea...
07/19/2011
7964146Measuring device and methods for use therewith
The ability to switch at will between amperometric measurements and potentiometric measurements provides great flexibility in performing analyses of unknowns. Apparatus and methods can provide such switching to collect data from an electrochemical cell. The cell may...
06/21/2011
7955560Apparatus for determining the concentration of chemical components in a liquid or gaseous system using multiple sensors
The present invention provides a sensor system for determining a concentration of a chemical component in a fluid having a first sensor that senses a first physico-chemical property of the chemical component and, a second sensor that senses a second, different physi...
06/07/2011
7943090Plastic injection-moulded part with embedded component
A method for producing a plastic injection-moulded part having an insert made of a material different from the plastic material is provided, the method comprising the steps of: (a) introducing and positioning the insert in a cavity of an injection mould; (b) setting...
05/17/2011
7943089Laminated assay devices
An electrochemical-based assay device capable of detecting the presence or quantity of an analyte of interest that is provided. The device contains two or more substrates, one containing a detection working electrode and another containing an auxiliary electrode, su...
05/17/2011
7935307Disposable, refillable glucometer with cell phone interface for transmission of results
A disposable glucometer is disclosed which includes a testing region for receiving a test strip and electronic components to perform blood glucose monitoring, a cell phone interface for relaying test results to a monitoring station or server (which can be through a ...
05/03/2011
7922975Resonant sensor capable of wireless interrogation
A resonant sensor for detecting a specific environmental analyte is presented. The resonant sensor comprises a top conductive layer of two ground conductors and a center signal line, a bottom conductive layer of two ground lines shunted together by a shunt line and ...
04/12/2011
7910063Drift compensated magnetic permeability detector
A device for detection of magnetic permeability μ or, alternatively, relative magnetic permeability μr or, alternatively, relative magnetic susceptibility (μr−1) of a sample, wherein said device contains a sample chamber and at least two c...
03/22/2011
7910064Nanowire-based sensor configurations
This invention provides nanowire based molecular sensors and methods for detecting analytes in a microfluidic system. Methods for sensing analytes include detecting changed electrical parameters associated with contact of a nanowire with the analyte in a microfluidi...
03/22/2011
7871571Biomolecule analyzing system
A biomolecule analyzing system (10) that provides an expeditious, accurate and reliable method for analyzing a biomolecule (150). The system (10) includes two substrates (12,28) each having an inner edge (14,30), an outer edge (...
01/18/2011
7846389High throughput screen
The present invention relates to a structure comprising a biological membrane and a porous or perforated substrate, a biological membrane, a substrate, a high throughput screen, methods for production of the structure membrane and substrate, and a method for screeni...
12/07/2010
7829023Test strip with vent opening
A test strip with a covering layer having a novel vent. The vent divides the inventive covering layer into two parts and provides an opening that allows air to escape as fluid enters a cavity or sample receiving chamber formed in the test strip. In preferred embodim...
11/09/2010
7815860Biosensor, biosensor system and method of using thereof
A biosensor for detecting an analyte by using a variable voltage according to infrared radiation absorption is provided. The biosensor includes an infrared absorber having a variable resistance and bioreceptors immobilized onto the infrared absorber for selectively ...
10/19/2010
7794657Phase change sensor
A device is disclosed which is a highly sensitive and selective sensor. The device is comprised of a sensor material secured into a fixed position on substrate, a deformable arm and a signaling component which creates a detectable signal in response to movement of t...
09/14/2010
7794658Open circuit delay devices, systems, and methods for analyte measurement
System, circuits, and methods to reduce or eliminate uncompensated voltage drop between an electrode of an electrochemical cell usable for analyte measurement. In one example, a system is provided that includes a test strip, a reference voltage circuit, an operation...
09/14/2010
7780917Calibratable flow detector
A device and method are provided for the reliable calibration of detector units for the detection of low-molecular substances in a liquid flow. ...
08/24/2010
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