PCT application and national phase costs
A useful PCT budget follows the life of a patent family: the international application, entry into selected territories and the work needed to obtain and maintain protection. Start with a consistent technical application, then compare where and when you intend to spend.
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Start with the decision you need to make
Write down the intended markets, the first filing date and the planning horizon before comparing totals. A small initial territory list and a broader international strategy answer different business questions. Give each scenario a clear name so the assumptions behind the result remain visible when colleagues review it later.
Keep the same claims, pages, complexity and professional-fee assumptions while testing a territorial change. Then prepare a separate comparison for a change in attorney work or maintenance duration. This approach makes the source of each budget difference easy to explain and avoids mixing several decisions in one headline figure.
Separate the international filing fees
The international stage has three main fee categories: the international filing fee, the international search fee and the receiving Office's transmittal fee. WIPO's Applicant's Guide identifies the applicable authorities and fee schedules. The selected receiving Office and searching authority therefore belong in the scenario record.
In your budget, keep these official charges separate from the firm's work on the application. Review the filing format and page assumptions alongside the selected authorities, then examine each international-stage line in the result. A comparison is easier to maintain when every amount has a clear procedural purpose and original currency.
Official references
WIPO Applicant's Guide: international phasePlan the national and regional phases as a second budget stage
National or regional Offices decide on grant in their territories. Entry into those phases brings Office-specific fees and document requirements. WIPO's national-phase guide and individual national chapters are the references for the applicable entry time limits; many Offices use a 30-month period, with Office-specific variations.
Create a territory list with a reason for each selection: customer location, manufacturing, a licensing opportunity or a competitor's activity. Review the spending around phase entry as a group, then inspect the later examination and maintenance years. This makes the cash requirement at an international expansion decision visible alongside the longer-term commitment.
Official references
WIPO Applicant's Guide: national phaseMake professional-fee assumptions explicit
Choose the firm fee profile that matches the planned representation, then review the assumptions specific to the client. Drafting, local work, responses during examination and maintenance administration are different tasks. Record the work included in each assumption so comparisons between territories or firms use a consistent scope.
Pay particular attention to expected office actions and time to grant. They describe different aspects of the scenario: one concerns the expected work, the other its timing. When discussing an estimate with a patent attorney, use the detailed assumptions and line items to identify which inputs should change for the technical dossier.
Read annual spending and currencies together
The annual view helps distinguish a lower initial outlay from a lower family budget over the selected horizon. Look for years combining phase entry, examination or several renewals. A project team can then match the expected spending with development milestones and review dates for its territorial strategy.
Keep original-currency amounts visible when considering a converted total. Use the same conversion assumptions for competing scenarios and review any item flagged as partial. If you revise an input, run a new calculation and compare the resulting annual distribution as well as the overall amount. This keeps the comparison tied to the current scenario.
Turn the estimate into a reviewable project record
Use a descriptive quote title that identifies the project, route and territorial variant. In the detailed report, review the assumptions, reasons for the listed expenses and calculation-specific legal references. Those elements give an attorney a practical basis for discussing the budget rather than only its final number.
Keep the PDF with the team's decision record and identify the inputs to revisit at the next milestone. For a focused comparison, prepare one reference scenario and one alternative, then explain the differences by phase, territory and professional work. The glossary, treaty pages and simulation guide provide supporting explanations while you refine the estimate.
Common questions
Which scenario should I prepare first?
Start with the territories and work you currently intend to pursue. Keep this as the reference, then change one major decision at a time: coverage, route, professional work or maintenance horizon. Compare the same application characteristics in both reports.
How should I compare a direct route with a PCT route?
Use the same intended territories and technical assumptions, then compare the procedural stages and annual spending. The reports let you identify the timing and cost categories behind the difference, with the selected route recorded in each scenario.
What should I send to my patent attorney?
Share the scenario assumptions and detailed PDF, including the territories, applicant information relevant to reductions, complexity and firm fee profile. List the inputs you want the attorney to review so the discussion produces a more precise next estimate.