Patent ID: 6708618
Filing Date: 2004-03-23
Classification: G06K,G09F

Abstract:
An apparatus to be applied to a valuable object for authenticating and preventing counterfeiting comprising:an unique security feature known as a microdot which includes a plurality of randomly scattered microscopic markers, each of said markers constructed as a stand alone self supporting design by a manufacturing technique from the group consisting of etching and molding, said design defines a single pattern of indicia, each of said markers being constructed of only a single thin layer of material; and said microdot to be fixedly applied by securing means onto a valuable object, said microdot to be only observable by using a magnifying apparatus in order to authenticate said object by a comparative examination procedure with a known appearance of said microdot, by said plurality of markers being randomly positioned on each valuable object there is produced a totally unique pattern of said markers for each valuable object.