PCT filing for Indian universities: costs, deadlines and the 31-month decision

Every year an IPR cell has to answer the same question for some of its inventions: do we protect this abroad? The PCT (Patent Cooperation Treaty) route is how most Indian universities do it. It does not give a worldwide patent. It gives one international application, a search report, and time, usually 30 or 31 months from the first filing, before you must pay for patents country by country.

Used well, that time lets the TTO find a licensee who pays for foreign filing. Used badly, the university pays international fees and then drops the application at month 30 anyway. This guide covers the costs, deadlines and decisions in order. Fee amounts below are from WIPO's PCT fee tables as of 1 September 2026 and the PCT Applicant's Guide for India. WIPO revises them often, so check before you file.

How the PCT route works

1. First filing in India. Usually a provisional or complete application at the Indian Patent Office. This sets the priority date.
2. PCT filing within 12 months of the priority date.
3. International search. An International Searching Authority (ISA) issues a search report and written opinion, usually around month 16.
4. Publication promptly after 18 months from priority.
5. Optional Chapter II. You can ask for international preliminary examination by the later of 22 months from priority or 3 months from the search report.
6. National phase. At 30 months in most countries, or 31 months in India and at the European Patent Office, you enter each country you want and pay its fees.

Where to file and foreign filing permission

Indian universities usually file at the Indian Patent Office as receiving office (RO/IN), in English or Hindi, through WIPO's ePCT system. Paper filing is allowed but costs more.

You can also file directly with WIPO's International Bureau. If you do, remember Section 39 of the Patents Act: an Indian resident may not file abroad without a written permit on Form 25, unless an Indian application for the same invention was filed at least six weeks earlier and no secrecy direction applies. The Controller must decide a Form 25 request within 21 days. Since most universities file in India first and file the PCT months later, the six-week condition is usually met, but check it for every case.

What a PCT application costs a university

Fees at filing

The international filing fee is charged in US dollars at RO/IN, so the rupee cost moves with the exchange rate. A university filing a 30-sheet application fully in ePCT and choosing the Indian Patent Office as ISA would pay USD 1,291 plus ₹2,500 in official fees. Attorney fees come on top.

Which search authority to choose

At RO/IN you can choose among several ISAs, including the Indian Patent Office, the European Patent Office, the USPTO, the Austrian, Australian, Chinese, Japanese and Swedish offices. Check the current list in the Applicant's Guide, because it changes.

The cost gap is large. The Indian Patent Office charges ₹2,500 for an educational institution. The European Patent Office charges EUR 1,885, and the USPTO USD 2,400 for a large entity. Some universities pay more for an EPO search because the report carries weight in later European examination. Others choose the Indian office to keep costs down and spend the money on licensing work. Decide by where your likely licensees and markets are.

The 90% reduction: universities do not qualify

WIPO cuts the international filing fee by 90% for some applicants. Under the criteria in force since January 2025, India is listed for natural persons only. Indian universities, companies and startups do not qualify. Naming the inventors as applicants to claim the reduction is not a fix: the applicants must be the true owners with no duty to assign to an ineligible party, and a university's IP policy usually requires assignment.

Similarly, the EPO's 75% search fee reduction for applicants from India applies only to natural persons, not to universities.

The decisions that matter more than fees

Filing fees are small next to what comes at month 30 or 31. National phase entry in the US, Europe and a few Asian markets, with translations and local agents, can cost several lakhs per country, and renewals follow for years. That is where a university's money really goes. Make three decisions deliberately.

Decision 1, by month 12: file a PCT at all?

Ask: is there a plausible licensee or market abroad? Is the Indian application strong enough to build on? Has the inventor disclosed results in a way that affects novelty abroad? Many universities file a PCT by default. A short review at month 10 or 11 with the inventor and TTO saves money.

Decision 2, at the search report: is it still worth it?

The search report and written opinion around month 16 tell you how strong the claims are. If the key claims look weak, consider amending, narrowing or stopping before more is spent.

Decision 3, by month 30 or 31: which countries?

This is the expensive one. The right answer is usually "the countries a licensee will pay for". Start marketing the technology to industry soon after filing, not at month 28. If a licensee is signed in time, the licence agreement can require it to pay national phase costs in the markets it wants.

Entering the Indian national phase

If a university files its PCT first, without an earlier Indian application, it must still enter India within 31 months. Under the PCT Applicant's Guide for India:

• Form 1 costs ₹1,600 when e-filed by an educational institution (₹8,000 for others), plus fees for extra sheets and claims.
• Form 18, the request for examination, is due within 31 months of the priority date. It costs ₹4,000 e-filed for an educational institution.
• Form 3, on foreign filings, is due within 6 months of entry.

Deadlines are where universities lose patents

A PCT portfolio runs on dates: 12, 16, 18, 22, 30 and 31 months, each counted from a different priority date for each invention. A missed month-12 deadline usually ends foreign rights, and a missed national phase date can be hard or impossible to fix in some countries. Keep one docket, owned by the IPR cell rather than by individual faculty, with reminders well ahead of each date.

Zernyx IPMS is built for universities and research institutions to manage patents, filings and portfolios end to end, so PCT dates sit with every other deadline in one place. You can see how it works at Zernyx IPMS. Our guide to patent renewal in India covers the dates that follow grant, and university IP policy covers who decides on foreign filing.

Common mistakes

• Assuming the 90% reduction applies. It does not for Indian universities.
• Filing by default without asking whether anyone abroad will license the technology.
• Marketing too late. Start looking for licensees in the first year after filing.
• Ignoring the US 30-month date. It is a month before India and the EPO, and it cannot be extended.
• Losing track of dates across several inventions with different priority dates.

FAQ

What is the deadline to file a PCT application from India?

Within 12 months of the first application's filing date, if you want to claim its priority.

What is the PCT national phase deadline in India?

31 months from the priority date. The same applies at the European Patent Office. Most other countries, including the US, use 30 months.

Do Indian universities get the 90% PCT fee reduction?

No. Under WIPO's current criteria, applicants from India qualify only if they are natural persons. Universities and companies pay the full international filing fee, less any ePCT reduction.

How much does it cost a university to file a PCT application?

Official fees for a 30-sheet application filed fully in ePCT, with the Indian Patent Office as search authority, come to about USD 1,291 plus ₹2,500. Attorney fees and later national phase costs are extra.

Does a PCT application give a worldwide patent?

No. It is one international application that delays national filings. Patents are granted country by country after national phase entry.