Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7432111 | Non-continuous immunoassay device and immunoassay method using the same A non-continuous immunoassay device which includes two or more separated pads for immunoassay analysis, and is capable of controlling the migration speed of a mobile phase between the separated pads, and an immunoassay method using the same are disclosed. The immuno... | 10/07/2008 |
| 7427511 | Immunochromatographic test device An immunochromatographic test device of the present invention comprises: a sample receiving member for receiving a sample; a label holding member for holding a labeling substance to bind to an analyte contained in the sample; and a chromatographic membrane having a ... | 09/23/2008 |
| 7413880 | Test kit for immunochromatography A test kit for immunochromatography comprising a test strip and a test tube is described. The test strip comprises a detection zone for detecting an analyte in a sample. The test tube accommodates the test strip. The test tube comprises an indicator at a position co... | 08/19/2008 |
| 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 |
| 7396674 | Reaction vessel Reaction vessel 1 for assaying of a subject substrate molecule comprises a translucent narrow tube 2 which has a liquid feed port 4 at one end, and which is intended to be packed with microparticles 5 as solid phase support on which a rea... | 07/08/2008 |
| 7390674 | Lateral flow devices using reactive chemistry There is provided a lateral flow assay device for detecting the presence or quantity of an analyte residing in a test sample where the lateral flow assay device has a porous membrane in communication with a wicking pad. The porous membrane has a detection zone which... | 06/24/2008 |
| 7387890 | Immunoassay devices and use thereof An immunoassay device has a housing defining a first opening for receiving a solution and a second opening through which a liquid sample is deposited, a strip of sorbent material having a test site with immobilized antigen or antibody for the ligand to be tested, an... | 06/17/2008 |
| 7378285 | Devices for the detection of multiple analytes in a sample The present invention relates generally to an assay for detecting and differentiating multiple analytes, if present, in a single fluid sample, including devices and methods therefore. ... | 05/27/2008 |
| 7374950 | Immunoassay device for diagnosing congestive heart failure and predicting mortality in congestive heart failure patients An immunochemical assay device for determining the presence of NT-proBNP alone or conjunctively with Cardiac Troponin I comprising a base member, an array disposed on the base member, and at least one assay indicia zone. The array comprises (i) a reservoir pad to re... | 05/20/2008 |
| 7371583 | Apparatus and method for analyte detection Disclosed is a testing device and methods for the identification of an analyte of interest in a sample. In a preferred embodiment, the testing device includes a front panel having at least one sample application aperture; a rear panel having at least one solvent app... | 05/13/2008 |
| 7354614 | Diagnostic device A diagnostic device 1 for performing an immunochromatographic analysis of a sample is disclosed. The diagnostic device 1 comprises a porous substrate 10 for performing the analysis and a pre-filter 30 to remove solid components, such as s... | 04/08/2008 |
| 7354776 | Method of processing and testing powdered samples using immunochromatographic strip tests A method and kit for processing and testing powdered samples are provided herein. The powdered sample is combined with a fluid to produce a slurry or liquid suspension, and the slurry is contacted with an immunochromatographic test strip containing detectable reagen... | 04/08/2008 |
| 7344893 | Immuno-gold lateral flow assay A chromatographic lateral-flow assay system for rapid, high sensitivity method of detecting low levels of ligands in body fluids, with few false positives and few false negatives. The lateral-flow assay may have a membrane strip in ribbon form, which increases detec... | 03/18/2008 |
| 7326578 | Urine assay for ovarian reserve It has been found that a urine test for ovarian reserve can be provided which is equivalent in sensitivity to current laboratory methods which determine ovarian reserve based on FSH levels in serum. A lateral flow device for indicating ovarian reserve is disclosed. ... | 02/05/2008 |
| 7319032 | Non-sugar sweeteners for use in test devices The present invention provides methods, compositions, and kits for rapid detection of analytes in a sample. Surprisingly, it has been found that bulking materials having non-sugar sweeteners effectively enhance chromatographic detection methods by providing componen... | 01/15/2008 |
| 7312028 | Highly cost-effective analytical device for performing immunoassays with ultra high sensitivity A simple easy to manufacture analytical device capable of performing membrane based immunoassays on batch of samples within 3 to 10 minutes wherein the method permits focused application of samples, costly labeled immunoassay and signal amplification reagents, said ... | 12/25/2007 |
| 7312090 | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor Methods 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 relates to optical devices. ... | 12/25/2007 |
| 7309611 | Prewetting stop flow test strip A test strip and method for detecting an analyte present in a sample. The test strip comprising: a buffer addition zone to which a buffer may be added; an absorbent zone proximal to the buffer addition zone; one or more test zones distal to the buffer addition zone,... | 12/18/2007 |
| 7303925 | Method of detecting an analyte for lateral flow immunoassay tests A visual perception of a colored site in an immunoassay device comprising a strip for enabling capillary migration of a fluid sample therealong, a labeled reagent disposed on the strip and formulated for suspension in the sample migrating therepast and a captive rea... | 12/04/2007 |
| 7300802 | Membrane strip biosensor system for point-of-care testing The present invention relates to a biosensor for point-of-care testing (POCT) whose detection sensitivity was remarkably improved by introducing to membrane strip chromatographic assay system a successive cross-flow procedure for immune reaction and enzymatic reacti... | 11/27/2007 |
| 7300803 | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor Methods 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 relates to optical devices. ... | 11/27/2007 |
| 7300761 | Methods and device for detecting prostate specific antigen (PSA) An immunoassay device and assay to detect an antigen, such as PSA, in a biological sample. The device comprises a solid support having multiple reaction zones containing capture antibodies directed to the antigen. Exposure of a test sample to a mixture of incubation... | 11/27/2007 |
| 7300750 | Analyte assay device with preabsorbing zone The present invention provides an assay device for detection of an analyte which is a member of a specific binding partner in a sample, the assay device comprising a sample application zone, a preabsorbing zone and a specific binding zone. The device can provide a H... | 11/27/2007 |
| 7294502 | Device for collecting liquid samples The invention relates to a device for collecting samples of fluids, in particular of body fluids such as saliva, said device comprising an absorbent pad and two housing parts which are connected to the latter in a movable manner and can enclose the absorbent pad. Th... | 11/13/2007 |
| 7285425 | Assay test system for regulating temperature A device for evaluating at least one analyte in a test sample. The device comprises a cassette having a hollow test chamber, a test strip disposed within the test chamber for receiving the test sample, and a temperature control member. The cassette has at least one ... | 10/23/2007 |
| 7285426 | Bulking materials containing starch reagent for use in test devices The present invention provides methods, compositions, and kits for rapid detection of analytes in a sample. Surprisingly, it has been found that bulking materials having starch reagents effectively enhance chromatographic detection methods by providing component sta... | 10/23/2007 |
| 7270995 | Analyzing device The present invention is an analytical device which comprises a porous piece assembly consisting of a liquid reagent-receiving porous piece (1), a labeled substance-retaining piece (2), a test piece (3) comprising a detection site (4) and... | 09/18/2007 |
| 7267992 | Method for the determination of an analyte in a liquid A method is provided to determine the presence of an analyte in a sample. The method provides an element with a sample application zone, a detection zone, a zone containing immobilized analyte or analyte analogue, a conjugate that has a first bioaffine binding partn... | 09/11/2007 |
| RE39816 | Conjunctive analysis of biological marker expression for predicting cardiac mortality A diagnostic tool is disclosed for accurately and rapidly diagnosing the condition of an ailing organ. Although applicable to numerous organ and organ systems, this application particularly illustrates the concept of conjunctive marker utilization as it relates to d... | 09/04/2007 |
| 7250308 | Capture assay utilising a particulate analyte Device (1) for assaying a particulate analyte, comprising (a) a receptacle (2) for receiving a suspension (5) of particulate analyte, and containing label (3) for the particulate analyte, and (b) a porous detection material (4) tha... | 07/31/2007 |
| 7244392 | Slide-in cassette for a cup for testing of drugs of abuse A specimen cup (100) has slide-in cassette (102) hermetically sealed in a chamber (104), with a outer partition being transparent. The cassette comprised chemical test strips (106) used to provide testing of drugs of abuse or other chemic... | 07/17/2007 |
| 7241628 | Method for immobilizing conjugates in diagnostic tests The invention concerns a method for the detection of an analyte in a sample using analyte-specific conjugates which have at least one heterologous group for an analyte-independent binding to a control zone. The present invention additionally provides new conjugates ... | 07/10/2007 |
| 7238519 | Automated immunoassay cassette, apparatus and method An immunoassay cassette, apparatus, and method for detecting an analyte in a liquid body-fluid sample are disclosed. The cassette has a body and a support mounted on the body, for movement relative to the body to first and second transfer positions. Sample supplied ... | 07/03/2007 |
| 7238537 | Assays An analytical test device incorporating a dry porous carrier to which a liquid sample, eg. urine, suspected of containing an analyte such as HCG or LH can be applied indirectly, the device also incorporating a labelled specific binding reagent which is freely mobile... | 07/03/2007 |
| 7238538 | Chromatographic assay device and methods A chromatographic assay device for the analysis of an analyte in a liquid sample has a proximal sample application zone and a distal test zone. The test zone contains a first ligand capable of binding with the analyte to form an analyte-ligand complex. The device al... | 07/03/2007 |
| 7229839 | Bidirectional lateral flow test strip and method A test strip adapted to receive a sample and detect an analyte therein is provided. The test strip comprises a sample addition zone to which a sample may be added; an absorbent zone proximal to the sample addition zone; one or more test zones distal to the sample ad... | 06/12/2007 |
| 7226793 | Method for adding an apparent non-signal line to a lateral flow assay A test device and method for determining the presence or absence of an analyte in a fluid sample, the test device including a support bearing a mark thereon, and a matrix defining an axial flow path. In operation, an observation area in the test device becomes trans... | 06/05/2007 |
| RE39664 | Lateral flow chromatographic binding assay device The present invention relates to improved specific binding assay devices comprising a chromatographic medium including a reaction site at which a specific binding reagent is immobilized, a sample application well located adjacent to the chromatographic medium and of... | 05/29/2007 |
| 7223546 | Method for measuring the amount of constituent contained in a specific lipoprotein There is provided a method and kit for measuring the amount of an objective constituent contained in a specific lipoprotein in a biological sample such as serum and plasma, specifically for measuring the amount of cholesterol contained in high density lipoprotein, w... | 05/29/2007 |
| 7220595 | Automated immunoassay cassette, apparatus and method An immunoassay cassette, apparatus, and method for detecting an analyte in a liquid body-fluid sample are disclosed. The cassette has a body and a support mounted on the body, for movement toward and away from a sample transfer position. Sample supplied to a sample ... | 05/22/2007 |
