The Global Strategy of National Phase Entry

Introduction : Global IP Protection Building, an integral part of a long-term strategy to create commercial value worldwide, is Global IP for inventors, start-ups, research institutions and companies. Due to the interconnectedness of our global market, an innovation created in one country might be produced, marketed, licensed or replicated across many others. That is why international patent protection has such a vital position in planning intellectual property. The Patent Cooperation Treaty (PCT) is the route used most frequently for international patent filing, and by filing the PCT application, an applicant is able to determine where they would like to pursue patent protection. It is useful as it keeps the applicant’s first position in 158 countries. A PCT application by itself does not create a global patent.

This is a common misunderstanding. Patent rights are territorial from each country or regional patent office. After international filing, a PCT application must be pursued into the national or regional phase in each country of interest to obtain enforceable patent protection. This is referred to as entering the national phase. One of the most significant stages for you in the international patent process is the national phase entry. It's about stringent deadlines, translation placements, official charges, native agents, the rules on claims and following procedures. If the deadline is missed, the application may expire in that country. Hence, this event must be planned and executed in advance. The date that matters most in this sequence is the very first priority date. This is typically the date when the first patent application was filed for the invention. This date is the basis from which most national phase deadlines are calculated.

United States

In the case of a PCT application, the US Patent and Trademark Office (USPTO) obliges entering into the national phase within 30 months in view of the earliest priority date. If the deadline is not met, applicants are deemed to have abandoned their application. That leaves the United States with a narrow window to restart the application. In situations where the delay has been completely unintentional, an applicant may be able to utilise a 2-month grace period after receipt of notice that their application is abandoned, and file a petition to revive it.

Language and Translation Requirements

The official language of patent prosecution in the United States is English. In the case of an international application published in a different language, any entry into the national phase at the USPTO allows for a delay of additional patent office delays. The office will then send out a notice to award the applicant 2 months for the English translation. By paying some fees, you can get more months as well. This provides the US with a degree of latitude over some other jurisdictions, particularly where applicants need more time to complete translations.

Filing Requirements and Inventor’s Oath

The international applicant can gain a US filing date by simply submitting their international application and paying the basic official fees. The applicant also has to file a signed inventor's oath or declaration. This document reveals the actual innovators of the technology. The initial national phase entry, post which the oath may be filed. But if the oath or minimum dues were not filed within 30 months, a late-filing fee is charged.

Official Fees

The type of applicant that you are (micro, small or large entity) will dictate the fee structure at the USPTO. There is the full fee, paid by large companies and lowered costs for tiny entities or micro allies. For multinational corporations, the national fee for basic education is USD 350; examination fee: USD 880; search fee: USD 150. The late-filing penalty is USD 170. If you are a small entity, the basic filing fee is USD 140; the examination fee is USD 352; and the search fee is USD 60. The late surcharge is USD 68. The basic filing fee for micro entities is 70 USD, the examination fee is 176 USD, and the search fee is 30 USD. The late surcharge is USD 34. These cover up 3 distinct claims (independent claims) and a total of 20 claims only. In case the application consists of several claims, extra fees need to be paid. For more than 3 independent claims, the fee is per independent claim / USD600 ( Fee for large entities ); USD240 (Fee for small entities ), dollar USD120(Micro entity ). More specifically, for each total claim in excess of 20, the fee is USD 200 in the respective large size class (USD 80 and USD 40 to small and micro entities, respectively).

Duty of Candour

Under the United States patent system, there is a high burden of candor imposed upon applicants and their attorneys. This includes identifying any prior art that they are aware of, which may be relevant to the patentability of the invention. Prior art: Similar inventions that were already known in the world at least a year before the patent application was filed. This is offered via an information disclosure statement (IDS). As a reminder, an IDS is free when filed three months after the national phase entry or before the first substantive office action. More official fees may be applicable if the applicant submits foreign search reports or citations after a longer time. Once a patent is granted in the US, the applicant must pay maintenance fees at 3.5 years, 7.5 years, and 11.5 years from the date of issue to maintain an active patent.

European Patent Office

For applicants in need of protection in Europe, the European Patent Office, or EPO, offers an efficient regional avenue. One regional application before the EPO (the European Patent Office) largely suffices instead of filing separate applications in many European countries. This route can pass through more than 44 member, extension and verification states. The European regional stage must be filed within 31 months from the earliest priority date. This deadline will result in an automatic withdrawal of their application if the applicant does not mail off all documents to extend their status by this date. Nevertheless, the EPO has a remedy: further processing. The office is the first to provide an official warning if a required step in the process has not been completed, and it also provides a 2-month extension for an applicant to finish what was not completed. It expensively saves the application. The EPO levies a 50 pc increase or surcharge to unpaid official fees.

Language and Representation

The EPO's official languages are English, French, and German. When, as part of the international application, any document is published in a language other than one of the three official languages, a complete translation into one of these official languages must also be filed within the 31-month time limit. If the translation is not submitted within this time-frame, the EPO will send a warning and grant one final 2-month period to file it. If the applicant does not reside or have a principal place of business in the country that is an EPO member state, they must appoint a registered European patent attorney. As such, local representation forms a key component of entry into the European regional phase for many foreign applicants.

Claim Fees and Strategic Amendments

The EPO has high fees for applications with multiple claims. The basic filing fee includes the first 15 claims. The first 15 claims are bundled without charge, and each claim from 16 to 50 requires separate charges. Nevertheless, these over-limit claim fees need not be paid precisely at the 31-month inception threshold. A communication is then issued by the EPO after entry, giving the applicant 6 months to voluntarily amend the application. This period is strategically important. Full control for applicants: They can view their claims, merge related ones, remove those we don't need and reduce the overall number of claims. This can help in reducing costs but keeps the flagship invention protected. If the third-year renewal or maintenance is due before the 31-month deadline, then it has to be paid during the regional phase entry process.

China

First, for patent protection in China, the applicant must file during the national phase (before the China National Intellectual Property Administration, or CNIPA) no later than 30 months from the earliest priority date. In China, another uncomplicated extension is a straightforward 2-month extension. The deadline can be extended to a total of 32 months by paying a late-entry surcharge of CNY 1,000.

Chinese Translation Requirement

China now has very strict rules governing translation. Documents must be filed in Chinese. If the international application is in another language, when entering the national phase, a full translation of the description, claims, abstract, and any text appearing in other drawings must be provided on that day. This requirement applies regardless of whether the applicant is entering the program at month 30 or, in the case of a two-month extension for additional business impact data from months 31 and 32, virtually re-entering the program with a start date (2 months) after originally receiving approval. China, unlike the US or Europe, doesn't give a grace period after filing for translations. This means planning is of great importance. Zhihui： Methodological patent translations into Chinese: A cumbersome process — especially for complex patents. This means that applicants should undertake the translation process several months ahead of the deadline.

Fees and Examination

For foreign applicants, through a qualified patent attorney in China. The signed Power of Attorney shall be submitted within a time period of 2 months from the date when the applicant receives a formal notice from the examiner. China: The official fees depend on the type of application, the number of claims, and the document length. The first filing fee for an invention patent includes a base price of 900 Yuan and a printing fee of 50 Yuan. Filing fees: RMB 500 for the basic filing fee for utility models and designs. 7 In this case, the substantive examination fee of CNY 2,500 is payable. A late application incurs an additional charge of 1,000 yuan for each model in the application (if more than 10 claims), CNY 150 per claim, up1000-3000 each attachment. If the application text is over 30 pages, a document size fee (50 CNY) will be incurred for each extra page. Substantive Examination Request must be filed before the expiry of 3 years from the date of the earliest priority claim. China also offers some reductions in the cost of taking exams. In the event that CNIPA was the International Searching Authority in the international phase, 50% of the fees for substantive examination are exempted. If an international search was conducted by the European, Japanese, or Swedish patent offices, a 20 per cent discount is available.

Japan

The JPO stipulates 30 months of national phase entry from the priority date. While Japan is strict about procedure deadlines, it has a useful system where you can defer translation.

Form 53 Translation Deferral

Japan allows the applicant to file Form Number 53 if it is close to the deadline of 30 months and the Japanese translation (if required) has not been prepared yet. This is technically referred to as the Submission of National Documents. In case Form 53 is filed within the last 2 months of a national phase (month 28 through month 30), an extra right is granted, authorising the applicant to submit a Japanese translation from the filing date up to an additional two months. This is particularly important to applicants who are still determining whether Japan is commercially relevant for their inventions. It allows them to get their filing date first, and they have additional time before spending money on a Japanese translation.

Local Representation and Examination

Foreign applicants are required to designate a registered Japanese patent attorney. The declaration must happen by appointing someone to be the representative, and the Power of Attorney form needs to be sent in all within 3 months post the time period of national documents or translation extension deadline. If this requirement is overlooked, the Japan Patent Office will send a notice advising on that matter and give a final period of 2 months to the applicant. If the applicant continues not to take action, then the application is withdrawn. In Japan, substantive examination must be requested within 3 years of the international filing date, not from the earliest priority date. This allows applicants to have more time to evaluate if the invention has sufficient commercial merit in Japan before paying the examination fees. Japan has a 30-month national phase deadline and allows restoration of rights if missed due to unintentional delay. But, the applicant must demonstrate that this delay was not intentional, and he/she is obliged to pay a restoration fee of 212,100 yen.

India

The Indian Patent Office has a strict 31-month national phase entry deadline starting from the earliest priority date. The Patents (Amendment) Rules, 2024 permit extension of certain procedural time-lines for a period not exceeding six months vide Form 4. But this extension is optional and pricey, as it has a steep monthly price tag attached to it.

Change in Examination Deadline

For applications submitted on or after March 15, 2024, the time for filing a Request for Examination (or RFE) has been shortened from 48 months to only 31 months. This marks a huge shift in the patent practice in India. The RFE and examination fee must now be filed/paid when entering the Indian national phase, as the deadline for response to an RFE is currently the same as that of entry into the Indian phase. In the past, applicants were given more time to choose whether they would like to continue with the examination. This extended financial and strategic cushion is not an option for more recent play.

No Substantive Amendments at Entry

In India, applicants are not allowed to make any substantive changes in the specification, claims or drawings during national phase entry. At this point, the applicant may only delete claims to reduce excess claim fees. It includes no more than 10 claims and 30 pages in the basic filing fee. If the application exceeds these limits, additional fees will be charged. The charge for large entities is INR 800 per page of excess and INR 1,600 per claim over the limit. These new charges are: - INR 160 for every excess page & INR 320 per excess claim or for small entities/start-ups/individuals. Be careful while deleting claims in India. Once deleted, they will never return; any claim that is removed upon entry cannot be restored. They also cannot move into divisional applications. Voluntary amendments are possible at the national phase, but are limited. Amendments are permissible only to bring the text within the confines of the existing law by explaining, limiting or correcting it. Broader claims and new subject matter cannot be added by applicants.

Local Forms and Formalities

The patent practice in India requires utmost attention to forms and supporting documents. Even minor administrative errors can cause delays or protests. The Indian Patent Office usually requires full legal names. Initials are often rejected. The full name, nationality and physical address must be stated for all inventors and applicants. FORM 3A, this has to be filed at entry or within 6 months of entry travails. Subsequent updates should be filed within 3 months of issuance of the First Examination Report. Where the applicant is not the inventor, proof of right should be submitted by filing a signed Form 1 or an assignment deed within 6 months from the Indian filing date. Form 26, which is the Power of Attorney, needs to be filed within a period of 3 months from entry. A scanned copy must be filed along with the required local stamp duty.

Official Filing Fees

For the big corporations, the basic filing fee under Form 1 is INR 8 Thousand. The compulsory Request for Examination under Form 18 is INR 20,000. Optional early publication fee (Form 9): Rs.12,500/- The fee for expedited examination under Form 18A is INR 60,000. Open Fee: It is ₹ 1,600 for primary filing (which also has to be paid by small entities, start-ups, or individuals). Examination Request- INR 4,000. And for early publication, the cost to pay is INR 2,500 and INR 8,000 for rapid examination. Once the patent is granted, a Commercial working statement in simplified format under Form 27 has to be filed within every three financial years.

Strategic Takeaways

Entry into the national phase is as much an art as it is a matter of law. Each jurisdiction is building its own rules, so applicants should not view the process as any kind of routine filing exercise. You can start Chinese translations very early (for example, around months 20 to 22). China does not include a post-filing grace period for translations, so any delays may jeopardise the application. Second, applicants can use Japan's Form 53 option to allow for translation of only the most crucial parts. That's basically 2 more months for them to decide if the Japanese market will even be worth entering. Third, there are higher initial costs associated with recruitment in India. For any application on or after March 15, 2024, both the filing fee and examination fee must be paid at month 31. The fourth is that claim deletion in India ought to be done with care. Some claims will remove some fees from the performance, but keep in mind that a deleted claim no longer exists and cannot be added again later. Third, being able to choose the International Searching Authority, which has financial consequences. Using the EPO or CNIPA during the international phase may help applicants receive examination fee discounts in certain jurisdictions.

Conclusion

National phase entry is a decisive stage in the international patent journey. A PCT application gives an applicant time and flexibility, but it does not itself grant patent rights in every country. Real protection begins only when the application is brought before the national or regional patent offices where protection is desired. The United States offers flexibility in translation and revival procedures, but it places a strong duty of disclosure on applicants. The European Patent Office provides a broad regional route but has high claim-related costs. China offers a short extension but follows strict translation rules. Japan provides useful translation flexibility through Form 53. India, especially after the 2024 rule changes, requires applicants to manage filing and examination costs at the same time.

For this reason, applicants must approach national phase entry with a clear strategy. They must plan translations early, monitor deadlines carefully, appoint local representatives where required, review claim structures, and budget for official fees. A well-managed national phase strategy can protect an invention in key markets, reduce unnecessary costs, and support long-term commercial growth. In simple terms, national phase entry is the point where an international patent plan becomes a country-specific protection strategy. Success at this stage depends not only on meeting deadlines, but also on making informed and timely decisions in every important market.

Author :- Atharva Pareek, in case of any query, contact us at Global Patent Filing or write back us via email at support@globalpatentfiling.com.

Endnotes

1. World Intellectual Property Organization (WIPO), Patent Cooperation Treaty (PCT), WIPO, Geneva. Available at: https://www.wipo.int/pct/en/ (explaining the international patent filing system, contracting states, and national phase entry requirements).
2. World Intellectual Property Organization (WIPO), PCT Applicant's Guide, WIPO. Available at: https://www.wipo.int/pct/guide/en/ (providing country-specific requirements for national phase entry, deadlines, translations, fees, and procedural formalities).
3. United States Patent and Trademark Office (USPTO), Entering the National Stage Under 35 U.S.C. §371; 37 C.F.R. §§1.491–1.499; Manual of Patent Examining Procedure (MPEP), Chapter 1800, National Stage. Available at: https://www.uspto.gov (covering U.S. national phase entry, inventor's oath, Information Disclosure Statements, revival procedures, and maintenance fees).
4. European Patent Office (EPO), Guide for Applicants – Euro-PCT Guide and European Patent Convention (EPC), particularly Rules relating to Euro-PCT applications. Available at: https://www.epo.org (explaining the 31-month regional phase deadline, language requirements, further processing, representation, and claim fees).
5. China National Intellectual Property Administration (CNIPA), Patent Law of the People's Republic of China, Implementing Regulations of the Patent Law, and Guidelines for Patent Examination. Available at: https://english.cnipa.gov.cn/ (covering China's national phase entry requirements, translation obligations, examination requests, official fees, and extension provisions).
6. Japan Patent Office (JPO), Procedures for Entering the National Phase Based on the Patent Cooperation Treaty (PCT); Indian Patent Office, The Patents Act, 1970, The Patents Rules, 2003 (as amended by the Patents (Amendment) Rules, 2024), and the Manual of Patent Office Practice and Procedure. Available at: https://www.jpo.go.jp/ and https://ipindia.gov.in/ (covering Japan's Form 53 translation deferral, restoration provisions, and India's 31-month national phase deadline, Request for Examination requirements, Forms, and fee structure).