https://www.epo.org/en/service-support/faq/searching-patents/open-patent-services/coverage/does-ops-contain-all-national
Does OPS contain all national patent applications published locally, even if they are not extended to other countries?
The EPO aims to provide complete coverage of patent publications from as many countries as possible. For details of the situation relating to each country, see "Useful tables and statistics, coverage and codes".
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