https://www.epo.org/en/service-support/faq/applying-patent/procedure/how-long-does-grant-procedure-take
How long does the grant procedure take?
The European patent grant procedure takes about three to five years from the date your application is filed. It is made up of two main stages. The first comprises a formalities examination, the preparation of the search report and the preliminary opinion on whether the claimed invention and the application meet the requirements of the EPC. The second involves substantive examination.
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