Patent Document ID: 20060054825
Application ID: 10533356
Patent Status: 0

Claim One:
1. Method for identifying and authenticating different objects or substances, this method using a computer system coupled to spectrophotometry means, said method comprising at least the two following successive phases an initial phase comprising: choosing a plurality of chemical markers which, when excited by an incident light ray, emit energy radiations whose frequency spectra can be distinguished from one another and with respect to objects and substances in which they are intended to be incorporated, allocating then incorporating in each of the objects or substances a combination of markers that is different to the combinations allocated to the other markers, determining an authentication code for said object or said substance defined using parameters comprising at least the presence or absence of markers in the allocated combination, storing in the memory of a computer system the authentication code of all the objects or substances and of related data corresponding to these objects or these substances, allocating an identification code to the object or substance, such as a bar code or similar, this identification code possibly being associated with the object, with the substance, with its recipient, and/or its packaging, storing, in the memory of said system, the identification codes for each of the objects, defining a correspondence between the identification codes and the authentication codes. an identification and authentication phase by said system, this phase comprising: theoretical identification of the object or substance by reading the identification code associated with the object, spectrophotometric analysis of at least part of the object or substance so as to detect said above parameters, in particular the presence or absence of markers, and determination of the authentication code of the object or substance, authentication of the object if the theoretical identification code corresponds to the authentication code, emission of a validation signal if a correspondence is detected or of an alert signal if the authentication code does not correspond to the identification code.