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| Number | Title | Issue Date |
| 8033162 | Analyte sensors and methods of use Analyte sensors for determining the concentration of an analyte in a sample. The sensors have a sample chamber having an inlet with a projection extending from an edge of the sensor for facilitating flow of sample into the sample chamber. ... | 10/11/2011 |
| 7900504 | High pressure fracture tester A system for testing a drilling fluid including a vessel having a fluid inlet, a filtrate outlet, a fluid outlet, and at least one permeable media disposed within the vessel. The system further including a base fluid container in fluid communication with the fluid i... | 03/08/2011 |
| 7854159 | Sensor and methods for measuring of concentrations of components in a liquid A sensor for measuring the concentration of components in a liquid, exhibiting a base body with a deformation body, and a hollow chamber. The hollow chamber is on the one side deformable through the deformation body and on the other side rigidly closed. The hollow c... | 12/21/2010 |
| 7836755 | Solidification sensor In a solidification sensor for measuring a solidification state of a liquid with a high degree of accuracy in real time, and for making the sensor small-sized with a reduced power consumption, the solidification sensor comprises a liquid absorbing portion formed of ... | 11/23/2010 |
| 7802467 | Analyte sensors and methods of use Analyte sensors for determining the concentration of an analyte in a sample. The sensors have a sample chamber having an inlet with a projection extending from an edge of the sensor for facilitating flow of sample into the sample chamber. ... | 09/28/2010 |
| 7797987 | Test sensor with a side vent and method of making the same A test sensor assisting in determining an analyte concentration in a fluid sample comprises a lid, a base and a spacer. The spacer has first and second spacer sections. The first spacer section has a first spacer side and a first spacer end. The second spacer sectio... | 09/21/2010 |
| 7770437 | Thiol or disulfide molecules having poly(ethylene oxide) groups for use in a self assembled monolayer bound to a metal layer for covalently immobilizing biomolecules in a biosensor An article is provided for immobilizing functional organic biomolecules (e.g. proteins, DNA, and the like) through a covalent bond to a thiolate or disulfide monolayer to a metal surface wherein an extra activation step of the surface layer or an activation step of ... | 08/10/2010 |
| 7735354 | Liquid-condition detection sensor A liquid-condition detection sensor (1) including a sensor element (51), at least a portion of which contacts a urea aqueous solution; connection terminals (52) fixedly attached to the sensor element (51); connection cables (53) wh... | 06/15/2010 |
| 7549324 | Consistency transmitter The present invention is a consistency transmitter for the measurement of consistency, viscosity, and other properties of matter. The transmitter consists of a measuring element, attached to a bearing-mounted shaft and rotated in the matter to be measured by a direc... | 06/23/2009 |
| 7543481 | Fluid testing sensor having vents for directing fluid flow A sensor for analyzing a fluid sample has a sample cavity for accepting sample fluid. At least one test region is disposed along the sample cavity, and at least one vent fulfills the dual function of venting the sample cavity and guiding the sample fluid in the samp... | 06/09/2009 |
| 7520163 | Sulfur in fuel tester A portable diesel fuel tester and a method of its use are provided. A sample of diesel fuel is placed in a sample tray of the tester. The diesel fuel is heated to a gas state and circulated to a SO2 sensor by an air pump. The SO2 sensor determi... | 04/21/2009 |
| 7409853 | Floatable housing for in situ water monitoring system An electronic system for use in a body of fluid is disclosed. The electronic system includes a first housing element and a second housing element. The second housing element is hermetically sealed to the first housing element, forming a first chamber there between. ... | 08/12/2008 |
| 7401501 | Method and apparatus for determining liquid absorption of aggregate A method of determining liquid absorption of an aggregate comprises providing a shaker apparatus, a vacuum source and a container; placing a sample of the aggregate in the container; adding liquid to the container sufficient to reach a calibration mark on the contai... | 07/22/2008 |
| 7391333 | System for monitoring quality of water system A monitoring, detection and alarm for water systems includes a plurality of sensing components for detecting the presence of target contaminants in water and for measuring the overall quality of the water. The apparatus contains water sensing components, a database ... | 06/24/2008 |
| 7381325 | Spa treatment system A spa treatment system for maintaining spa water includes a spa that has a peripheral wall bounding an inner portion having water therein. An outlet and an inlet are each fluidly coupled to the inner portion. A water testing assembly is in fluid communication with t... | 06/03/2008 |
| 7380441 | High throughput screening methods for lubricating oil compositions Method for determining dispersancy performance for a plurality of fluid samples of different compositions is provided. Each sample includes one or more base oils of lubricating viscosity and one or more lubricating oil additives and a predetermined amount of an oil-... | 06/03/2008 |
| 7367221 | Sensor for detection of liquid ingredients, particularly for biological materials and the detection device contained in the sensor This invention relates to a sensor for the detection of liquid ingredients with a carrier element (10), a sensor element (1) on the carrier element (10) and a sensor array, which is disposed on the surface of the sensor element and contains one ... | 05/06/2008 |
| 7367225 | Apparatus for measuring mecury contained in gaseous medium To provide a highly reliable apparatus for measuring mercury contained in the gaseous medium, in which the outlet port 3b of the reducing tube and the gas-liquid separator, both susceptible to deposition of stain, can be automatically cleaned to avoid ... | 05/06/2008 |
| 7366614 | Methods and apparatus for emergency rig monitoring Methods and apparatus for emergency rig monitoring are disclosed herein. The invention generally relates to methods and apparatus for monitoring an offshore rig. The rig monitoring systems and methods of use can relay information regarding the rig such as location, ... | 04/29/2008 |
| 7363800 | Apparatus and method for measuring compositional parameters of a mixture An apparatus for measuring compositional parameters of solid, liquid, and gas components of a mixture flowing in a pipe is presented. The apparatus combines three different compositional measurements (e.g., the speed of light (microwave), the speed of sound (sonar),... | 04/29/2008 |
| 7360402 | Water quality detecting device for an aquarium A water quality detecting device for an aquarium includes a casing, a transparent cover and a seat. Two pairs of circular recesses are respectively defined in opposite ends of the upper and lower faces of the casing. A close water guiding groove is defined in the up... | 04/22/2008 |
| 7357018 | Method for performing a measurement inside a specimen using an insertable nanoscale FET probe A measurement inside a specimen is performed by providing a nanoscale FET probe comprising a cantilever element and a nanowire extending from the cantilever element. The nanowire is electrically connected to the cantilever element at at least one of the ends of the ... | 04/15/2008 |
| 7359803 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one par... | 04/15/2008 |
| 7354768 | Volume-differential assay using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 04/08/2008 |
| 7347061 | Oil checking device for compressor of air conditioning system An oil checking device for compressor of air conditioning system includes an oil container connected to an high-pressure part of the air conditioning system to receive refrigerant and oil from the high-pressure part, the oil container being formed of a transparent m... | 03/25/2008 |
| 7334458 | Direct method to determine particulate concentration in a dispersion Particulate material concentration of a dispersion is detected by providing a known amount of dispersion including particulate material, a solvent, and other optional components; centrifuging the dispersion and separating the particulate material from the dispersion... | 02/26/2008 |
| 7331233 | Method and apparatus for ultrasonic sizing of particles in suspensions A particle size distribution monitor, comprising: a transducer adapted to be a source of ultrasonic energy and positioned in contact with a suspension containing a percent by volume of particles in a liquid, the transducer transmitting ultrasonic energy through the ... | 02/19/2008 |
| 7328624 | Probe for measuring parameters of a flowing fluid and/or multiphase mixture A probe 10,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, ... | 02/12/2008 |
| 7327136 | Magnetic taggant system An apparatus and a method for monitoring a ratio of at least two components being mixed use sensors detecting ferrous taggant particles in the component(s) and the mixture. The sensors include an annular drive coil positioned between inner and outer annular sense co... | 02/05/2008 |
| 7310046 | Method for eliminating reading errors in a non-contact microwave solids flow meter Method for eliminating or reducing reading errors of a non-contact microwave solids flow meter measuring solid particulate flow. The method is particularly suitable for calibration procedures prior to installation into an operating system. The flow meter is very sen... | 12/18/2007 |
| 7302830 | Flow detectors having mechanical oscillators, and use thereof in flow characterization systems An improved system, device and method for characterizing a fluid sample that includes injecting a fluid sample into a mobile phase of a flow characterization system, and detecting a property of the fluid sample or of a component thereof with a flow detector comprisi... | 12/04/2007 |
| 7275421 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations x1-xN disposed axially along a pipe 14 for measuring at least one parame... | 10/02/2007 |
| 7271007 | Microscale diffusion immunoassay Methods and apparatuses are provided for determining presence and concentration of analytes by exploiting molecular binding reactions and differential diffusion rates. Analyte particles and binding particles are allowed to diffuse toward each other, and slowing of t... | 09/18/2007 |
| 7258837 | Microfluidic device and surface decoration process for solid phase affinity binding assays This invention provides a microfluidic device for use in the detection of one or more analytes in a fluid using solid-phase affinity binding assays. The device offers a practical, easy-to-use, portable, inexpensive, robust analytical system for the parallel and quan... | 08/21/2007 |
| 7257518 | Fundamental method and its hardware implementation for the generic prediction and analysis of multiple scattering of waves in particulate composites This invention relates to a method and apparatus for the fundamental prediction, analysis, and parametric studies of the interaction of multiply scattered waves of any nature (acoustic, electromagnetic, elastic) with particulate composites (solid or fluid particulat... | 08/14/2007 |
| 7240546 | Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents A formation fluid sample is exposed to a rigidly-supported semi-permeable membrane such as silicone rubber to permit diffusion of gases and vapors from the formation fluid into a vacuum chamber, while at the same time, blocking the passage of any liquids. The membra... | 07/10/2007 |
| 7229593 | Portable vapor diffusion coefficient meter An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the time-varying concentration of vapor that has diffused a known distance thr... | 06/12/2007 |
| 7228748 | Electromagnetic flow meter insert An insert for an electromagnetic flow meter is disclosed. The insert is arranged to be positioned within a flow conduit having a flow conduit cross-section to define a flow path for fluid, wherein the insert comprises an inlet, a measuring section with a measuring c... | 06/12/2007 |
| 7228727 | Lubricity measurement using MEMS A system that facilitates in situ determination of lubricity in a fluid comprises a multi-element sensor positioned within a machine, wherein the multi-element sensor obtains data regarding a plurality of parameters of a fluid. A component calculates lubricity of th... | 06/12/2007 |
| 7219541 | Method and apparatus for downhole fluid analysis for reservoir fluid characterization A formation fluid sample is exposed to a rigidly-supported semi-permeable membrane such as silicone rubber to permit diffusion of gases and vapors from the formation fluid into a vacuum chamber, while at the same time, blocking the passage of any liquids. The membra... | 05/22/2007 |
