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.:

US 7961326 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 14, 2011

Filed:

Aug. 21, 2008
Applicants:

Joerg Martini, San Francisco, CA (US);

Richard H. Bruce, Los Altos, CA (US);

Francisco E. Torres, San Jose, CA (US);

Peter Kiesel, Palo Alto, CA (US);

Michael I. Recht, Mountain View, CA (US);

Jeffrey N. Roe, San Ramon, CA (US);

Inventors:

Joerg Martini, San Francisco, CA (US);

Richard H. Bruce, Los Altos, CA (US);

Francisco E. Torres, San Jose, CA (US);

Peter Kiesel, Palo Alto, CA (US);

Michael I. Recht, Mountain View, CA (US);

Jeffrey N. Roe, San Ramon, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); G01J 3/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method is provided for detecting concentration of an analyte in a fluid. The method comprises detecting an optical property of a first region of two or more regions in a system, the first region located in a container having a reservoir for one or more modifiers of one or more optical properties of the first region. The movement of the one or more modifiers is responsive to changes in concentration of the analyte. A next step detects an optical property of a second region of the two or more regions in the system, the second region located in a container having a reservoir for one or more modifiers of one or more optical properties of the second region. The movement of the one or more modifiers is responsive to changes in concentration of a compound, where the compound is something other than the analyte. The detected optical property of the first region and the detected optical property of the second region are used in embodiments to separate the effect of the analyte on the detected optical property of the first region from the effect of the compound, where the compound is an interfering compound.


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