The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1981
Filed:
Apr. 07, 1980
David Bernstein, Sykesville, MD (US);
Becton Dickinson & Company, Paramus, NJ (US);
Abstract
An analyte is determined quantitatively by an agglutination assay by use of a method which includes the use of at least two analyte standards having different analyte concentrations; an analyte supported on a particulate support; specific binder for the analyte and buffered diluent for making serial dilutions of an analyte sample. The assay is preferably conducted on a test card which includes a sample portion and a standard portion, with the sample portion having a series of separated marked dilution areas for receiving dilutions of an analyte sample and the standard portion including separated marked standard areas for receiving analyte standard of different analyte concentration. By addition of binder and particles sensitized with analyte to the serial dilutions and standards, analyte can be determined quantitatively by multiplying the lowest standard concentration at which there is no visible agglutination by the highest reciprocal dilution of test sample which similarly shows no visible agglutination.