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. 07, 1990
Filed:
Nov. 17, 1988
Applicant:
Inventors:
James A Laugharn, Cambridge, MA (US);
Denis Hammerton, Wayland, MA (US);
Timothy W Towle, Burlington, MA (US);
Assignee:
Crystal Diagnostics, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210807 ; 210496 ; 210509 ; 422101 ; 436177 ;
Abstract
A unique blood filter matrix material is provided which is able to effectively separate whole blood into cellular and noncellular constituents, especially when the whole blood volume is 0.5 milliliters or less. The filter matrix presents an overall negative surface electrical charge to the whole blood and utilizes a mechanism of action to rapidly separate cells from plasma or serum.