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. 25, 1999
Filed:
Mar. 21, 1997
Applicant:
Inventor:
Christopher John Davies, Energlyn Park, GB;
Assignee:
Ortho-Clinical Diagnostics, Amersham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436 65 ; 436 63 ; 422 681 ;
Abstract
There is disclosed a method for antenatal screening for an abnormality in a fetus using a bodily fluid, the fluid containing a marker which at one stage of gestation (stage A) the mean or median level) of the marker differs by less than 20% between pregnancies which are affected and unaffected by the abnormality and at another stage of gestation (stage B) differs by more than 50% between such affected and unaffected pregnancies, there being a period of at least 3 weeks between Stage A and Stage B and an apparatus for carrying out the method.