The Month Your International Application Becomes Real Applications

A PCT application is a placeholder with a search report attached. It never grants anything. At some point it has to turn into ordinary national applications in individual countries, each with its own examiner, its own language, its own local agent, and its own fee schedule. That conversion is national phase entry, and it is the single largest cash event in most international patent programs.

Everything about it is deadline-driven and unforgiving. Miss the date in a country and the application is dead there, with only narrow and expensive restoration options. Plan for it nine months out, not nine days out.

The Deadline Runs From Priority, Not From the PCT Filing

The standard deadline is 30 months from the earliest priority date. Some offices give 31 months. A few, including the European Patent Office, allow slightly later entry with a surcharge. None of them count from the date you filed the PCT.

This is where people lose rights. A typical sequence is a provisional at month 0, a PCT at month 12, and then national phase 30 months from the provisional, which is only 18 months after the PCT went in. Founders who mentally anchor to the PCT filing date find themselves a year short. If the chain of priority claims in your file is at all complicated, confirm the controlling date against how the patent priority date works before you build the calendar.

Countries with a 30-month window include the United States, China, Japan, South Korea, Canada, Brazil, and India. Australia and Europe run to 31 months. Verify each one individually with your agent rather than assuming a common date, and set internal reminders at 24, 27, and 29 months.

What Entering a Country Actually Involves

Four cost buckets, in roughly this order of size:

  • Translation. The largest single line for Japan, China, South Korea, and Brazil. A 40-page specification with 20 claims runs $3,000 to $8,000 per language. Translation of patent text is technical and literal, and a bad translation narrows your claims permanently in that jurisdiction.
  • Local agent fees. Most countries require a resident representative. Entry work alone runs $1,000 to $3,000 per country before any examination begins.
  • Official fees. Filing, search, examination, and claim surcharges. $1,000 to $5,000 per country, with the EPO at the high end and China at the low end.
  • Prosecution. Not due at entry, but budget it now. One to three office actions per country at $1,500 to $5,000 each.

A realistic all-in figure per country from entry to grant is $8,000 to $20,000, with the EPO higher once validation is counted. Price the European route separately using the European patent application process and costs, since the EPO is one entry that later branches into several national validations.

Choosing the Countries at Month 28

You now know things you did not know when you filed the PCT: whether the product shipped, who is buying, whether a distributor is real, and what the international search report says about your claims. Use all of it.

Enter where you have revenue or a signed channel, where a competitor could manufacture a clone, and where enforcement is realistic for a company your size. Drop the countries that made the list two years ago on optimism alone. The full framework for the selection is in how much a patent costs in the US for the domestic baseline, and the tradeoffs multiply linearly from there.

A common and defensible pattern for a hardware startup is United States plus China plus the EPO, with Japan added only if there is a specific customer or licensee. Three territories prosecuted properly beat eight prosecuted on a starvation budget.

Read the International Search Report Before You Spend

The ISR and the written opinion that accompany the PCT are free advice from a professional searcher, and they are the best data you will get before committing to national phase. Categories matter: an X reference alone destroys novelty of the cited claim; a Y reference does so in combination with another; an A reference is background only.

If the written opinion is negative on every independent claim, you have three options. Amend the claims under PCT Article 19 or Chapter II before entry. Enter fewer countries and fight properly in those. Or abandon the foreign program and keep the US case. Entering six countries with claims the searcher already declared unpatentable is the most common way to spend $60,000 on identical rejections in six languages. What those rejections look like and how they are answered is covered in how to respond to a patent office action.

Levers That Save Real Money at Entry

Trim the claim set per country. The EPO charges per claim over 15 and heavily over 50. Japan charges per claim. Filing a US-style 30-claim set everywhere is a pure tax.

Use PPH where the ISR was favorable. The Patent Prosecution Highway lets a positive result in one office accelerate examination in another, often cutting a year and one office action.

Check entity discounts. The US reduces fees sharply for small and micro entities, worth confirming against USPTO micro entity status. Several other offices have equivalents.

Consolidate agents. A single firm coordinating foreign associates costs a coordination fee but prevents the missed-deadline scenario that costs everything.

After Entry, the Clocks Keep Running

National phase entry starts, rather than finishes, the obligation. Examination requests are separate in several countries and have their own deadlines. Annuities begin during prosecution in Europe and Japan, not at grant. Budget the recurring spend using patent maintenance fees and decide in advance which territories you will let lapse if the product does not sell there, rather than discovering it as an invoice surprise.

Plan the Entry Before the Invoice Arrives

Projects House works with clients on the engineering side of this decision: which markets the product is genuinely ready for, where the manufacturing exposure sits, and which claims still match the shipping design after two years of development. Send your priority date and your search report through our contact form.