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:
Sep. 23, 1997
Filed:
May. 08, 1995
Yi-Her Jou, Libertyville, IL (US);
Stephen D Stroupe, Libertyville, IL (US);
James J Markese, Libertyville, IL (US);
Abbott Laboratories, Abbott Park, IL (US);
Abstract
This invention presents novel assay devices employing capture reagents, involving a specific binding member attached to a charged substance, and porous material containing a capture or reaction zone that is oppositely charged with respect to the charged substance included in the capture reagent. In one embodiment, a test sample suspected of containing the analyte of interest is contacted with the capture reagent to form a charged capture reagent/analyte complex. The complex is then contacted to the oppositely charged capture or reaction zone to attract, attach, and immobilize the capture reagent/analyte complex. With an appropriate indicator reagent, both sandwich and competitive assays can be performed.