European Patent Renewals: What US Owners Must Know

European patent maintenance fees — annuities, or renewal fees — are the largest long-term cost in a European portfolio. The full schedule, the official numbers and an interactive comparison now live in one place: the EPO renewal fees hub.

The short version for US patent owners. Before grant, the EPO collects a renewal fee for the pending application every year from the third year onwards, rising from roughly EUR 610 to EUR 2,015. After grant the EPO stops collecting: a classic European patent becomes a bundle of national patents, and each validated country charges its own annuity on its own deadline, in its own currency.

That is where budgets go wrong. A patent validated in six states has six separate renewal obligations and six chances to lapse. A Unitary Patent replaces them with a single annual fee across the participating EU states, with no translations and no national agents — but it does not cover the United Kingdom, Switzerland, Norway or Turkey, and it cannot be pruned country by country later.

Which route is cheaper depends entirely on how many countries you would otherwise validate in, and for how long. Run your own country mix and term through the EPO renewal fees hub, which holds the official EPO annuity schedule, Unitary Patent renewal fees, the after-grant validation and pruning workflow, and the calculator.

If you want a written cost projection for a specific European patent, or help deciding between unitary effect and selective national validation before the three-month validation deadline runs, see the European Patent Attorney service page.