This dataset presents statistics on Indicators of international co-operation in patents (EPO, USPTO & PCT): where EPO stands for European Patent Office, USPTO for US Patent and Trademark Office and PCT for Patent Cooperation Treaty. Those indicators analyze to cross-border ownership of patents reflecting international flows of knowledge from the inventor country to the applicant countries and international flows of funds for research (multinational companies) and co-inventions representing the international collaboration in the inventive process. Data are divided in terms of Patent office & Triadic Patent families (application filed under EPO, patent grants at the USPTO, patent application filed under the PCT), type of international Cooperation in Patenting (foreign ownership, domestic ownership, % of patents invented abroad), reference date (application date, priority date, date of grant) and partner country. Data are presented as annual datapoints from 1976 onwards.