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. 01, 1995
Filed:
Feb. 01, 1993
Applicant:
Inventors:
Richard P Watts, Brisbane, CA (US);
Mary C Ericson, Santa Cruz, CA (US);
Hrair Kirakossian, San Jose, CA (US);
Chiu C Chang, Sunnyvale, CA (US);
Assignee:
Syntex (U.S.A.) Inc., Palo Alto, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-75 ; 435-79 ; 435-792 ; 435-794 ; 436518 ; 436524 ; 436527 ; 436531 ; 436532 ; 436533 ; 436534 ; 436536 ; 436538 ; 436540 ; 436541 ; 436824 ;
Abstract
A method for carrying out a binding assay is described wherein a member of a specific binding pair (sbp) and a sample are combined with a matrix of non-porous beads in a liquid medium under conditions such that the beads bind to the sbp member. The liquid medium is removed from the beads by aspiration using an aspiration tube having one or more orifices each of a diameter smaller than the minimum diameter of the smallest bead thereby allowing removal of the liquid medium while prohibiting aspiration of the beads.