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

Icon_funbox Quotables

"The radio craze will die out in time."

Thomas Edison ; 1922

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 436/533 - Carrier is water suspendible particles (e.g., latex, etc.)


Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Subject matter in which the carrier consists of colloidal
No. of patents: 601
Last issue date: 12/28/2010


          9            
NumberTitleIssue Date
5470713Method and element for measuring analytes in biological fluids using immobilized binder-analyte labeled complex
The method of measuring analytes in biological fluids is disclosed wherein a specific binder to a given analyte is covalently immobilized onto a solid support to which a labeled analyte is pre-reacted and stabilized to form a binder-labeled analyte comple...
11/28/1995
5466610Immunoassays for insulin sensitivity enhancers, insulin sensitivity enhancer antibodies, and non-thiazolidinedione insulin sensitivity enhancer compositions
Methods have been developed to produce novel compounds by covalently coupling thiazolidinedione insulin sensitivity enhancers (ISEs) to proteins. These novel compounds are well suited for producing antibodies, which are specific for thiazolidinedione ISEs...
11/14/1995
5459041Campylobacter pylori antigens and uses thereof for detection of Campylobacter pylori infection
Antigenic compositions are disclosed for use in diagnostic kits and the like for detecting the presence of antibodies specific for Campylobacter pylori, bacteria often associated with the occurrence of Type B gastritis and peptic ulcer disease. Samples of...
10/17/1995
5459079Support for biologically active molecules which itself may be biologically active, process for its preparation and its biological applications
A support for biological molecules comprising a porous inorganic matrix and particles of a water-insoluble polymer, and a biologically active support comprising a porous inorganic matrix and particles of a water-insoluble polymer "sensitized" by biologica...
10/17/1995
5451528Methods for providing homogeneous reagents
A method for modifiying a liquid assay reagent to provide prolonged homogeneity thereof, particularly where the liquid assay reagent comprises microparticles for performing a heterogeneous immunoassay, is provided wherein the addition of an inert material...
09/19/1995
5445936Method for non-competitive binding assays
A novel non-competitive immunoassay technique has been developed which not only improves sensitivity, but also is convenient and less susceptible to interfering factors. It is compatible with existing instruments and is an assay that can be run in one tes...
08/29/1995
5441894Device containing a light absorbing element for automated chemiluminescent immunoassays
An improved device is used for performing solid-phase chemiluminescent immunoassays. The device comprises a container having a fibrous matrix and a porous absorbent material. An improvement in the device is the use of light absorbing material as the absor...
08/15/1995
5439830Method of performing at immunoassay using photothermal deflection spectroscopy
In an immunoassay for determining the amount of a target substance in a sample using photothermal deflection spectroscopy to determine the amount of bound label, a sandwich procedure is used which comprises reacting the target substance with two antibodie...
08/08/1995
5437983Heterogeneous binding assays
A method for carrying out a binding assay is described wherein a member of a specific binding pair (sbp) and a sample are combined with a matrix of non-porous beads in a liquid medium under conditions such that the beads bind to the sbp member. The liquid...
08/01/1995
5436126Synthetic peptides specific for the detection of antibodies to HCV, diagnosis of HCV infection and prevention thereof as vaccines
The present invention relates to a method for the detection in body fluids of antibodies to hepatitis C virus (HCV), also known as a non-A non-B hepatitis (NANBH) virus and to the diagnosis of NANBH by the use of a composition of synthetic peptides. Each ...
07/25/1995
5432100Diagnostic system employing a unitary substrate to immobilize microspheres
In a diagnostic apparatus system, a one piece porous substrate is provided in a container. The substrate serves both to extract an antigen in or on a top layer thereof with the remainder of the substrate serving as a reservoir. The pores in the top surfac...
07/11/1995
5429803Liquid specimen container and attachable testing modules
A biological fluid collection container comprising a cup member, a lid assembly removably mounted to the cup member having a housing with a downwardly extending cylindrical skirt, a luer lock with a throughgoing bore extending from one side of the lid hou...
07/04/1995
5427913Methods for determining platelet function
The invention provides a method for determining platelet function in a mammal comprising providing platelets from the mammal, contacting the platelets in suspension with at least one immobilised ECM protein or an effective fragment or analog thereof while...
06/27/1995
5427959Apparatus and method for measuring specimen
On a slab-like board formed of a transparent material is closely attached a wedge-shaped transparent cover member provided with a recess in a central inner portion, thereby to form a clearance. The height of the clearance between the recess and the board ...
06/27/1995
5424221Kit for detection of islet amyloid polypeptide (IAPP)
This invention is directed to kits for the detection of human islet amyloid polypeptide (IAPP) comprising (a) purified preparations of antibodies which react specifically with insulin or calcitonin gene-related peptides and (b) a preselected amount of hum...
06/13/1995
5422239Immunoassay utilizing monoclonal high affinity IgM antibodies
Hybridomally produced monoclonal IgM antibodies having high affinity are useful for the immunoassay and purification of vital antigens....
06/06/1995
5422283Solid-phase interferometric immunoassay system
The present invention relates to a solid-phase immunoassay system for the determination of an antibody or an antigen in a sample which consists of an interferometric signal from an optical source, a solid support coated with an antibody or an antigen and ...
06/06/1995
5405784Agglutination method for the determination of multiple ligands
The invention provides a method capable of determining the presence or absence of each of a plurality of different ligands in a specimen. The specimen is contacted with a predetermined number of different homogeneous populations of fluorescence beads havi...
04/11/1995
5403721Precipitate test for microorganisms
There is disclosed an improved method for testing for the presence of a particular microorganism or group of microorganisms characterized by a particular enzyme. The method uses a dye-forming substrate throughout a polymer matrix or on the surface of a so...
04/04/1995
5401633Biologically active reagent prepared from aldehyde-containing polymer, test kit, analytical element and methods of use
A biologically active reagent is prepared by reacting a biologically active substance covalently to a polymeric particle having pendant aldehyde groups. Such groups are provided by a polymerizable monomer represented by the structure: ##STR1## w...
03/28/1995
5401636Enhanced sensitivity agglutination assays multivalent ligands
An agglutination-based method for detecting and/or an analyte by allowing the agglutination reaction between the analyte, a carrier reagent, and an agglutinating agent to occur in the presence of a multivalent ligand....
03/28/1995
5399316Reaction vessel for conducting an immunological assay
A sample solution is dripped on an injection region with a pipette. The sample solution immediately spreads in a reaction region by a capillary phenomenon. The sample solution is left for a predetermined period of time to bind a biological associated mate...
03/21/1995
5395754Membrane-based immunoassay method
The present invention is directed to a membrane-based immunoassay method for an analyte of interest having at least two sterically separate antigenic sites. The method comprises providing a reactive membrane having a calibration zone and a test zone, wher...
03/07/1995
5380825AZT immunoassays, derivatives, conjugates and antibodies
This invention relates to a method for the immunoassay of AZT (3'-azido-3'-deoxythymidine), also known as zidovudine, in biological fluids such as serum, semen, plasma and urine, as well as other body fluids. The invention also includes (1) various novel ...
01/10/1995
5374516Avidin-and biotin immobilized reagents and methods of use
Reagents have been prepared from water-insoluble polymeric particles to which are covalently attached avidin, biotin or an avidin or biotin derivative. The polymeric particles comprise a polymer on at least the outer surface which is derived from at least...
12/20/1994
5374531Immunoassay for determination of cells
Methods and test kits are provided for the quantitative or qualitative determination of selected analytes, e.g., cell subsets in a mixed cell population, using a particulate separation reagent and a particulate detection reagent. The invention enables cel...
12/20/1994
5369037Simultaneous multiple assays
A particle agglutination-based, stable kinetic method for simultaneously determining the concentrations of multiple analytes in a single fluid sample with the addition of a single reagent, that entails the use of a novel high resolution sheath flow cell, ...
11/29/1994
5366895Method for lysing liposomes using polyethyleneglycol monononylphenyl ethers
A method for rapidly lysing liposomes having transition temperatures in the range of 35° to 65° C. is provided. Such liposomes are treated with a surfactant including ##STR1## wherein x represents an average of 9 or 12. The method is applicable to ...
11/22/1994
5364591Device for moving a target-bearing solid through a liquid for detection while being contained
There are described a device and method for doing confined reactions such as PCR amplification and detection, wherein solids (e.g., beads) used to obtain separation between bound and "free" label reagents, are transferred from region to region, specifical...
11/15/1994
5342760Determination of estradiol by competitive immunoassay
The present invention relates to the measurement of estradiol using competitive immunoassay methods. The inventors unexpectedly discovered that estrone and its derivatives conjugated to a label is a particularly effective tracer when used in conjunction w...
08/30/1994
5338661Monoclonal antibody specific for a human tumour-associated antigen
The present invention provides a human monoclonal antibody (C-OU1) which specifically binds a human adenocarcinoma tumor-associated antigen with an apparent molecular weight of about 43 kD and an isoelectric point of about 5.4-6.2. Screening assays using ...
08/16/1994
5320725Electrode and method for the detection of hydrogen peroxide
An amperometric biosensor and method for the detection of hydrogen peroxide, NADH, or NADPH with high sensitivity includes an electrode having on its testing surface a three-dimensional redox polymer network in which peroxidase is immobilized....
06/14/1994
5308749Method of preparing biologically active reagents from succinimide-containing polymers, analytical element and methods of use
Biologically active reagents are prepared from particles of copolymers having highly active succinimid groups. The reagents are prepared by covalently attaching biologically active substances, for example antibodies, to the particles, directly or indirect...
05/03/1994
5306632Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances
A porous shaped substrate such as a porous bead is formed from polyacrylonitrile or a copolymer thereof containing nitrile groups. The substrate has a hydrophilic surface containing amide groups constituting about 1.8 mole percent to less than about 15 mo...
04/26/1994
5302512Agglutinant complex as blood typing reagent
The invention includes an agglutinant complex which is useful for the investigation of the antigens present on erythrocytes, and which results from affinity couplings between nonagglutinant IgG type antibodies specific for the antigen to be identified, a ...
04/12/1994
5290707Method for detection of microorganisms
A microorganism detection system provides initial warning, confirmation of dentity, and recognition of pathogenic factors in microorganisms from environmental samples. The method and apparatus of the invention uses different sized antibody coated microsphe...
03/01/1994
5288609Capture sandwich hybridization method and composition
This invention provides methods and compositions for the detection of a target genetic material having a desired base sequence or gene. Also disclosed are methods and compositions for the detection of mutants. The methods and compositions are based in par...
02/22/1994
5288610Detecting reagent for antiplatelet antibody
A detecting reagent for an antiplatelet antibody, comprises a carrier particle, and a platelet antigen component immobilized on a surface of the carrier particle. The reagent particles do not agglutinate with each other, contrary to the platelets subjecte...
02/22/1994
5286452Simultaneous multiple assays
A particle agglutination-based, stable kinetic method for simultaneously determining the concentrations of multiple analytes in a single fluid sample with the addition of a single reagent, that entails the use of a novel high resolution sheath flow cell, ...
02/15/1994
5284752Methods of preparing a polymeric latex composition and water-insoluble biological reagent
A polymeric latex composition having a hydrophobe incorporated therein can be prepared using a novel latex "loading" method. This method includes providing a loadable latex, providing a hydrophobe dissolved in a water-miscible organic solvent, heating the...
02/08/1994
          9            
 
Sign InRegister
Username  
Password   
forgot password?