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. 14, 2010
Filed:
Dec. 22, 2004
David Samuel Cohen, Alpharetta, GA (US);
Xuedong Song, Roswell, GA (US);
Michael Knotts, Roswell, GA (US);
Shawn Ray Feaster, Duluth, GA (US);
Zdravko Savov Atanassov, Alpharetta, GA (US);
David Samuel Cohen, Alpharetta, GA (US);
Xuedong Song, Roswell, GA (US);
Michael Knotts, Roswell, GA (US);
Shawn Ray Feaster, Duluth, GA (US);
Zdravko Savov Atanassov, Alpharetta, GA (US);
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A system that employs transmission-based detection techniques to determine the presence or concentration of an analyte within a test sample is provided. Specifically, the optical detection system contains a chromatographic-based assay device that is positioned in the electromagnetic radiation path defined between an illumination source and detector. To enhance the sensitivity and signal-to-noise ratio of the system without significantly increasing costs, the distance between the illumination source and/or detector and the assay device is minimized. The illumination source and/or detector may also be positioned directly adjacent to the assay device. In addition, the system may be selectively controlled to reduce reliance on external optical components, such as optical filters or diffusers.