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:
Aug. 10, 1993
Filed:
May. 08, 1991
Applicant:
Inventors:
Harvey Buck, Indianapolis, IN (US);
Fern DeLaCroix, Indianapolis, IN (US);
Hans Berger, Indianapolis, IN (US);
Assignee:
Boehringer Mannheim Corporation, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ; G01N / ;
U.S. Cl.
CPC ...
435-75 ; 435-79 ; 435-792 ; 435-794 ; 435-795 ; 436512 ; 436518 ; 436540 ; 436543 ; 436538 ;
Abstract
The invention relates to an assay for determining an analyte in a fluid sample. Three receptors are used, with formation of a quaternary or four member complex. One of the receptors is bound to a solid phase, and binds to complexes of another receptor and the analyte. A third receptor is labelled, and it, too, binds analyte. The invention also involves the use of a displacement solution to wash fluid sample from solid phase after the first portion of the quaternary complex forms, i.e., prior to binding with the labelled receptor.