Although no "world-wide patent" exist, the owner of an Italian patent can extend the protection through two International Treaties:
the European Patent Convention and the Patent Cooperation Treaty (P.C.T.).
Treaties produce "cumulative effects" only as regards the filing and examination of patent applications.
Once granted, a "cumulative" patent application filed within the scope
of the International Treaties originates multiple autonomous national patents in those countries that were
designated when filing the cumulative application.
Cumulative registrations are preferred to individual registrations because of the cost reduction deriving from "centralisation and standardisation" of the bureaucratic formalities required from application filing to granting.