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. 02, 1997
Filed:
Oct. 21, 1994
Applicant:
Inventors:
David W Sammons, Tucson, AZ (US);
Garland E Twitty, Tucson, AZ (US);
Joseph G Utermohlen, Tucson, AZ (US);
Rizwan Sharnez, Sicklerville, NJ (US);
Assignee:
BioSeparations, Inc., Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; B01D / ;
U.S. Cl.
CPC ...
210806 ; 204450 ; 204518 ; 204543 ; 210767 ; 435-2 ; 436175 ; 436177 ; 436178 ;
Abstract
A charge-flow separation apparatus (CFS) and method for enriching rare cell populations, particularly fetal cells, from a whole blood sample by separating the rare cell fractions from whole according to the relative charge density and/or the relative binding affinity for a leukocyte depletion solid phase matrix. The enrichment method may be operated stand alone, or as a pre- or post-processing step in conjunction with a charge-flow separation method.