Patfee® : Patent Intelligence
International patent family cost calculator100% free
Estimate filing, international extension and renewal costs for your patent family. Compare scenarios and get a complete PDF report for free.
Definitions (8):Patent familyPatent portfolioFirst filingPriorityPCTNational extensionRenewal feeOL (official letter)
Optionally add translation budgets by country, step and month. You may also use machine translation. If you add a budget, enter its amount; use zero only when no cost is expected.
A patent family budget combines office fees and patent attorney fees. Claims, pages, prosecution assumptions and the territories selected help explain the spending over time. Compare scenarios using consistent assumptions for the application.
A PCT budget separates the international phase from national or regional proceedings. For a European patent, distinguish the application procedure from protection after grant, including the choice between national validations and unitary effect.
Maintenance costs depend on the territories retained, the years of protection and the firm's service fees. Compare the annual budget over the same horizon and review original-currency amounts alongside converted totals.
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Official procedure references: WIPO / PCT · EPO / EPC
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