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Generic product counterfeit detector

IP.com Disclosure Number: IPCOM000020625D
Original Publication Date: 2003-Dec-04
Included in the Prior Art Database: 2003-Dec-04

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Counterfeiting is as a huge problem. 250bn per year. One of the suggested solutions is that every product will have on the label a unique long number (25 digits). The consumer calls the company and they tell him if it is a good number. The problem for the counterfeiter is that he does not know many of this numbers (he can copy some in a store) and therefore if he makes counterfeit products the number on the labels will either repeat themselves or be bad numbers. It will be easy to figure out that it is counterfeit. The problem with this idea is that consumers do not want to call the company on every product they purchase. (A large article in the Economist about this problem