The International Patent Institute (or IIB standing for Institut International des Brevets, its French name) was an intellectual property organisation established on June 6, 1947 in The Hague, Netherlands, by a set of European countries, France, Belgium, Luxembourg and the Netherlands. It was integrated into the European Patent Organisation on January 1, 1978. Its purpose was to centralize patent searching and archiving as well as the resources needed for the prior art searches for its member countries.