U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6368227

Method of swinging on a swing

A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 436/514 - INVOLVING DIFFUSION OR MIGRATION OF ANTIGEN OR ANTIBODY


Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Subject matter in which the antigen or antibody migrates
No. of patents: 912
Last issue date: 03/20/2012


1                      
NumberTitleIssue Date
8137985Polyelectrolytic internal calibration system of a flow-through assay
A flow-through assay for detecting the quantity of an analyte residing in a test sample is provided. The flow-through assay contains a porous membrane that is in fluid communication with probe conjugates that contain a specific binding member and a detectable probe....
03/20/2012
8137984Caffeine detection via internally-referenced two part assay
Methods, compositions, and apparatus for detecting the presence of caffeine in a liquid sample are provided. In certain embodiments, an internally referenced competitive assay allows a very precise determination of a threshold value of caffeine for use in semiquanti...
03/20/2012
8133742Method for measuring immunochromato test piece
After dropping a sample onto an immunochromatographic test strip, a change of absorbance at a first position on the immunochromatographic test strip is sensed by detecting reflected light while illuminating a measurement light on the first position, a change of abso...
03/13/2012
8105843Methods and devices to enhance sensitivity and evaluate sample adequacy and reagent reactivity in rapid lateral flow immunoassays
Methods and devices for rapid lateral flow immunoassays to detect specific antibodies within a liquid sample while also validating the adequacy of the liquid sample for the presence of immunoglobulin and the integrity and immunoreactivity of the test reagents that d...
01/31/2012
8101429Native analyte as a reference in lateral flow assays
This invention is directed to a lateral flow assay for detecting the presence of an analyte in a liquid test sample. The lateral flow assay represents an improvement in the ability to accurately and with high fidelity to detect the presence or absence of a target an...
01/24/2012
8097472System and method for the separation of analytes
A separation module operates to fractionate or separate an analyte into fractions according to pI, i.e., pI bands, utilizing capillary isoelectric focusing (“CIEF”) within a first microchannel. The fractions are stacked to form plugs, the number of which is dete...
01/17/2012
8062908Device for collection and assay of oral fluids
A method for rapid collection and assay of oral fluids is disclosed. The method comprising the steps of: (a) placing an assay device into an oral cavity, (b) removing said assay device from said oral cavity; and (c) determining the presence or absence of at least on...
11/22/2011
8043866Immunochromatography method
A object of the present invention is to provide an immunochromatography method that makes it possible to rapidly detect an ultratrace amount of an analyte that has been impossible to analyze by conventional immunochromatography methods. The present invention provide...
10/25/2011
8043867Assay test strips and reading same
An assay test strip includes a flow path, a sample receiving zone, a label, a detection zone that includes a region of interest, and at least one position marker. The at least one position marker is aligned with respect to the region of interest such that location o...
10/25/2011
8039268Immunochromatoassay method and immunochromatoassay kit
An immunochromatoassay method that allows high detection sensitivity measurement. The method including the steps of: permeating an analyte solution that includes a visibly labeled second binding substance that specifically binds to a detection target substance into ...
10/18/2011
8030091Method for adding an apparent non-signal line to a rapid diagnostic assay
A test device and method for determining the presence or absence of one or more analytes in a fluid sample, the test device including a support or member bearing a mark thereon, and a matrix or member containing a capture zone. In operation, an observation area in t...
10/04/2011
8003407Lateral flow system and assay
The present invention relates to a lateral flow assay and system, including a test strip, for detection and quantification of analytes in samples, such as samples containing cells and fluid. In general, according to the present invention, a test strip for a lateral ...
08/23/2011
7998753Measurement kit and an immunochromatography method
It is an object of the present invention to provide a measurement kit for developing a first developing solution and a second developing solution from different directions to suppress background noise, and an immunochromatography kit. The present invention provides ...
08/16/2011
7998752Biosensor and blood component analytical method
According to the biosensor and the blood component analytical method of the present invention, in a biosensor that is made of a single layer or plural layers of a porous material as shown in FIG. 1, having a reagent holding part and utilizing chromatography, ...
08/16/2011
7993935Test strip for immunochromatography
A test strip for immunochromatography comprising a sample receiving member, a label holding member, and a chromatography membrane is described. The chromatography membrane has a first detection zone and a second detection zone. The second detection zone is formed by...
08/09/2011
7989217Method for determining hCG levels in fluid samples
The subject invention is an immunoassay for the semi-quantitative test kit for determination of human chrionic gonadtropin (hCG) in fluid sample (such as urine) as an aid in the diagnosis of a certain stage of pregnancy. The test device includes five strips having e...
08/02/2011
7972871Apparatus 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...
07/05/2011
7968348Environmental sampling and testing method
Provided is sampling and testing device for the detection of specific molds, allergens, viruses, bacteria, fungi, and other protein containing substances. Embodiments of the device include a sampling member slideably engaged with a base that contains a lateral flow ...
06/28/2011
7955866Labelled silica nanoparticles for immunochromatographic assays
Labelled silica nanoparticles for immunochromatographic reagent, comprising silica nanoparticles containing a labelled substance. ...
06/07/2011
7943395Extension of the dynamic detection range of assay devices
A flow-through assay device for detecting the presence or quantity of an analyte residing in a test sample is provided. The device utilizes multiple detection zones, one of which is premised on “competitive” binding of the analyte and the other is premised on ...
05/17/2011
7939342Diagnostic test kits employing an internal calibration system
A diagnostic test kit that employs a lateral flow assay device and a plurality of assay reagents for detecting a test analyte within a test sample is disclosed. The assay reagents include detection probes that are capable of producing a detection signal representing...
05/10/2011
7935538Indicator immobilization on assay devices
A lateral flow assay device for detecting the presence or quantity of an analyte in a test sample is provided. The device comprises a chromatographic medium that defines a detection zone, wherein a crosslinked network is non-diffusively immobilized within the detect...
05/03/2011
7932099Methods and compositions for analyte detection
The present invention is directed to methods and apparatus for detection of one or more analytes. Analytes include agents or components of infectious agents such as pathogenic virus, as well as enzymes, proteins and biomarkers. ...
04/26/2011
7919330Method of improving sensor detection of target molcules in a sample within a fluidic system
Methods of improving microfluidic assays are disclosed. Assays can be improved (better signal to noise ratio) by using sessile drop evaporation as an analyte concentration step (enhanced signal) and repeated passes of wash droplets as a means to reduce non-specific ...
04/05/2011
7919331Chromatographic test strips for one or more analytes
The invention describes immunochromatographic protocols in which one or more analytes, such as a bacteria or virus, can be assayed utilizing a “sandwich” complex. ...
04/05/2011
7910381Immuno gold lateral flow assay
A chromatographic specific binding assay strip device, comprising: a non-permeable platform strip; a permeable membrane testing strip positioned on top of said non-permeable platform strip, with the testing strip comprising at least one capture reagent site containi...
03/22/2011
7901949Assay
The present invention provides an assay kit for detecting an analyte of interest in a sample. The kit comprises a) a reporter species; b) a labelled species having first and second binding regions, wherein the first binding region is capable of binding to the analyt...
03/08/2011
7879623Integrated device for analyte, testing, confirmation, and donor identity verification
The present invention provides an apparatus for fluid sample collection and analyte testing, including a sample receiving member and at least one membrane test strip, and optionally a sample retention member, fingerprint acquisition pad, and/or fluid collector. It a...
02/01/2011
7867780Lateral flow format, materials and methods
The present invention provides a lateral flow format and materials and methods for using the format in a variety of applications. More particularly, the present invention provides single-layer lateral flow formats, materials and methods for detecting the presence of...
01/11/2011
7858396Lateral flow assay device with multiple equidistant capture zones
A lateral flow test strip for the analysis of a sample featuring numerous capture zones arranged in an array such that each capture zone is substantially equidistant from the sample containing area. The sample does not pass through another capture zone to reach any ...
12/28/2010
7846745Device for immunochromatography
Device for immunochromatography comprise a test strip comprising a sample application member, a label holding member and a chromatography membrane, a first case member and a second case member. Detection kits and methods for testing an analyte substance are also des...
12/07/2010
7842514Particle manipulation unit, chip and detection device having the same, mounted thereon, and methods of separating, capturing and detecting proteins
A channel (1) formed in a substrate (41) branches into channels (2, 3) at a branch point (43). On this branch point, obstacles (8) having a columnar structure are aligned at certain intervals. ...
11/30/2010
7749773Device for detection of molecules in biological fluids
Disclosed is a test device and a method for qualitatively and/or quantitatively measuring the concentration of an analyte in a biological fluid sample. The test device includes a housing defining a sample port, a test well containing a stirrer and a conjugate, and a...
07/06/2010
7749771Device and methods for detecting an analyte in a sample
Disclosed is a device, for detecting an analyte in a sample, comprising a sample pad for collecting the sample, a test strip coupled to the sample pad, and a housing enclosing and allowing visualization of the test strip. The sample pad can include one or more marki...
07/06/2010
7749772Antibody and immunoassays for determining the presence of Δ-Tetrahydrocannabinol
Antibodies having specific binding for the parent THC (Δ9-THC) and its major metabolites are provided which present a significant increase in sensitivity of immunoassays such as lateral flow immunoassays and ELISA for THC. The present invention also prov...
07/06/2010
7723123Western blot by incorporating an affinity purification zone
An upstream affinity purification region is used to bind one or more component of interest in a mixture of components prior to separating the mixture of components. Detection of the separated components and a released component of interest provide identification of ...
05/25/2010
7718443Assay device
Disclosed is an assay device to determine the presence of at least one analyte of interest in a liquid sample, the device comprising means for generating a first signal (the ‘test’ signal) which indicates the presence and/or amount of analyte of interest in the ...
05/18/2010
7709272Devices and methods for detecting amniotic fluid in vaginal secretions
The present invention relates to a diagnostic method for the detection of small quantities of amniotic fluid in the vagina. More specifically, the invention relates to the detection of PAMG-1 in the vagina using anti-PAMG-1 antibodies. ...
05/04/2010
7709271Method and device for immunoassay
The present invention relates to a method and a device for determining a concentration of a biological active substance in a sample by the means of an enzyme-linked immunosorbent assay (ELISA). The device comprises a solid support within a tubing for binding an immu...
05/04/2010
7704753Devices and methods for analyte assays with built-in result reporting using recognizable symbols
The present invention provides devices, methods and kits for detecting the presence of an analyte in a liquid sample and indicating to the user the presence or absence of the analyte through the formation of a recognizable symbol during the assay. In one embodiment,...
04/27/2010
1                      
 
Sign InRegister
Username  
Password   
forgot password?