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.

Date of Patent:
Mar. 14, 2017

Filed:

May. 21, 2008
Applicant:

William D. Herzog, Groton, MA (US);

Inventor:

William D. Herzog, Groton, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/50 (2006.01); G01N 15/14 (2006.01); G01N 21/53 (2006.01); G01N 21/35 (2014.01); G01N 21/47 (2006.01); G01N 21/3577 (2014.01);
U.S. Cl.
CPC ...
G01N 15/1456 (2013.01); G01N 21/53 (2013.01); G01N 21/35 (2013.01); G01N 21/3577 (2013.01); G01N 2021/4707 (2013.01); G01N 2021/4709 (2013.01); G01N 2021/4726 (2013.01);
Abstract

Physical property determination of a particle or classification of the particle as a function of the physical property by evaluating scattered light profile from a single particle is disclosed. The particle may include chemical structures that vibrate as a function of a physical property of the particle. The physical property may include an absorptive property of the particle or a chemical composition. From a detected scattered light spectrum, at least two anomalous dispersive regions may be identified. The physical property of the particle may be determined as a function of the at least two regions. A system employing the physical property determination can achieve sensitivities useful for low particle density applications such as detection for biological and chemical agents.


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