Method and apparatus for portable product authentication
US6512580B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1999 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Oct 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6421
- WIPO fieldMeasurement
- WIPO sectorInstruments
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 …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.