Patent · US Active

False positive testing device

US8371616B2 · kind B2 · utility

2Cited by

5References

9Claims

0Family size

Inventors

Judy Wu · San Diego, US
Robert Andrew McTaggart · Markham, CA

Key dates

Filing date	Dec 22, 2008
Grant date	Feb 12, 2013
Priority date	—
Expiry date	Feb 3, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2035/34
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A false positive testing device (FPTD) that contains a coating based on a one hundred percent solids varnish and a transparent reagent, that uses oxidative free radical polymerization as a drying mechanism, and that can be transferred to various types of porous substrates by conventional lithographic offset printing and/or dry offset printing. The substrates with the FPTD can be verified by using common currency detection protocols, such as testing with ultraviolet lights and/or counterfeit detection iodine based pen/pad stamps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.