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:
Jan. 28, 2003

Filed:

Oct. 27, 1999
Applicant:
Inventors:

Fredrich Behringer, Old Lyme, CT (US);

Sarka Aubrecht, Mystic, CT (US);

Richard H. Selinfreund, Guilford, CT (US);

Rakesh Vig, Durham, CT (US);

Assignee:

Verification Technologies, Inc., Centerbrook, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/101 ;
U.S. Cl.
CPC ...
G01N 2/101 ;
Abstract

A method and apparatus for on-site verification of product authentication and quality includes a microplate having a substrate with a light-emissive compound thereon. The substrate provides immobilization of the light-emissive compounds and provides a three-dimensional environment similar to free solution for reactions with the product sample to occur. The microplate may include any material having desired light reflective properties and a surface to retain the light-emissive compounds therein. A metered amount of light-emissive compound is placed on the microplate by any desired metering method, such as hand-metering by skilled technicians, automatic metering using robotic equipment, or printing using for example, piezoelectric dispensing technology. In this respect, the light-emissive compound is placed on a microplate, with the microplate. Once the light-emissive compound is applied to the substrate, the microplate may be sent to the test site where product testing is to be performed. A sample product is placed on the microplate and the light-emissive is compound thereon is free to react with key ingredients in the sample product. Light emission from the light-emissive compound and the key ingredient is compared to a fingerprint.


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