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:
Aug. 09, 2005

Filed:

Mar. 29, 2001
Applicants:

John T. Mccaffrey, Cheshire, CT (US);

Szilveszter Jando, Waterbury, CT (US);

Sunita Carrasko, Danbury, CT (US);

Inventors:

John T. McCaffrey, Cheshire, CT (US);

Szilveszter Jando, Waterbury, CT (US);

Sunita Carrasko, Danbury, CT (US);

Assignee:

Neogen Corporation, Lansing, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J003/30 ; G01N021/76 ;
U.S. Cl.
CPC ...
Abstract

A hand-held assay device measuring chemiluminescence generated by as ample of ATP or other entity capable of chemically reacting to generate photoluminescence includes a photodiode detecting light which is emitted from the sample to produce a sample signal, another photodiode generating a reference signal in response to environmental changes, switched integrators amplifying the sensor signal over a controllable integration time to detect an output signal indicative of the presence of the sample.


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