Coating processes – Fraud or tamper detecting
Patent
1998-01-07
2000-02-29
Bell, Janyce
Coating processes
Fraud or tamper detecting
427157, 427160, 427256, 427288, 427384, 106 3132, 2523014R, 25230116, B41M 314
Patent
active
060306572
ABSTRACT:
The present invention is directed to a method for labeling an object for its identification in order to counter product diversion and product counterfeiting. This method includes providing an encapsulated biologic marker labeled with an agent that emits selected detectable wavelengths of energy when exposed to infrared radiation (IR), and associating the labeled marker with the object, whereby, the object to be identified can be exposed to IR and emitted select wavelengths of energy from said agent detected. The agent can be an upconverting phosphor, a lanthenide ion (bound to a naphthalene group), or other chemical that emits selected detectable wavelengths of energy when exposed to infrared radiation (IR). Biologic markers include, inter alia, one or more of a protein, a nucleic acid sequence, an antibody, a polypeptide, or an antigen. The encapsulant for the biologic marker preferably is casein which has been cross-linked with itself.
REFERENCES:
patent: 3886083 (1975-05-01), Layer
patent: 4387112 (1983-06-01), Blach
patent: 5136812 (1992-08-01), Lebacq
Baggot Breffni
Butland Charles L.
Bell Janyce
DNA Technologies Inc.
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