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:
Jun. 26, 1984
Filed:
May. 17, 1982
Thomas R Witty, Sandy, UT (US);
Mark E Astill, Holladay, UT (US);
Becton Dickinson and Company, Paramus, NJ (US);
Abstract
An improved competitive protein binding assay comprising; incubating an analyte in the presence of labeled analyte and a protein binder suitable for competitive binding activity by the analyte and the labeled analyte to provide a mixture having free analyte, free labeled analyte, bound analyte and bound labeled analyte, substantially separating the bound analyte and the bound labeled analyte from the free analyte and free labeled analyte to form a first fraction containing substantially the bound analyte and the bound labeled analyte and a second fraction containing substantially the free analyte and the free labeled analyte by causing a predetermined level of the mixture to flow through a bed of an organo-silane coupled to silica gel, and detecting the labeled analyte of at least one of the first and second fractions to determine the concentration of the analyte by comparison to a reference.