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:
Jul. 07, 1992
Filed:
Dec. 14, 1990
Applicant:
Inventors:
Chi-Chin Wang, Wilmington, DE (US);
Robert T McKeever, Landenberg, PA (US);
Marshall L Salyers, Malvern, PA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; B03C / ; C12M / ;
U.S. Cl.
CPC ...
422 64 ; 435287 ; 435288 ; 436526 ; 436177 ; 422681 ; 422 8205 ; 210222 ; 2092231 ;
Abstract
An automatic chemistry system having a wheel for mounting reaction vessels is provided with a programmable permanent magnet which is selectively positioned adjacent a reaction vessel to separate magnetizable particles in the vessel from the vessels liquid contents. This facilitates performing heterogeneous immunoassays.