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Patents are ways of expressing to the market the emergence of new technologies, being supported by a specific legal framework for patent applications and patents and made available in patent databases. Among the search options offered by these banks are the International Patent Classification, a mechanism established by the Treaty of Strasbourg of 1971, which provides a hierarchical system of independent language symbols for the classification of patents and utility models according to thedoi:10.7198/geintec.v9i1.1379 fatcat:p5yrbfl43rhbbfapwfafdvvphq