The article attempts to show the role of the patent system in the internationalization of diffusion of technical … knowledge. Its purpose is to analyse, use of international technical knowledge made available through patent systems, by Polish … so-called patent citations, included in the technical documentation submitted for the protection of inventions …

tests show that the localization of knowledge spillovers, as measured via patent citations, is strongest at small spatial … specification of patent technological categories, the method of citation matching, and alternate cluster definitions …