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:
May. 21, 1991
Filed:
Sep. 09, 1987
Applicant:
Inventors:
Richard B Bankert, Amherst, NY (US);
Elizabeth A Repasky, Williamsville, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-725 ; 436518 ; 436519 ; 436520 ; 436523 ; 436536 ; 436538 ; 436543 ; 436544 ; 436547 ; 436808 ; 436824 ; 436829 ; 435810 ; 435-732 ; 435-79 ; 435-792 ; 435-794 ; 435975 ;
Abstract
This invention relates to a flotation immunoassay employing a novel buoyant matrix to which an antigen or antibody is coupled and which separates the bound and free products of the assay by floating to the surface of the reaction liquid. The novel flotation device which makes it possible to detect and to quantitate either antigen or antibody can also be used to fractionate cells and molecules.