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. 31, 2001
Filed:
May. 28, 1999
Applicant:
Inventors:
Roger Phillips, Palo Alto, CA (US);
Geoffery McGarraugh, Scotts Valley, CA (US);
Franklin A. Jurik, San Mateo, CA (US);
Raymond D. Underwood, Red Bluff, CA (US);
Assignee:
Lifescan, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q 1/54 ;
U.S. Cl.
CPC ...
C12Q 1/54 ;
Abstract
A method for measuring analyte concentration in a body fluid involves taking reflectance readings from a first surface of a porous reagent-containing matrix both before and after a sample of the fluid has been applied to a second surface of the matrix. A sequence of reflectance measurements is initiated upon a predetermined drop in reflectance, which indicates that sample has reached the first surface. The analyte concentration is calculated from the sequence of reflectance measurements.