A practical guide for foreign patent attorneys, in-house IP teams and international applicants covering Iran’s 30-month PCT deadline, Farsi translation requirements, local representation, reinstatement, examination and annual fees.
By Mojgan Honarmand Javan — Founder & Managing Attorney, JavanLex Legal Solutions
Last reviewed: October 2026 · Approx. 12-minute read
PCT National Phase in Iran — At a Glance
| Requirement | Iran |
|---|---|
| National phase deadline | 30 months from the relevant priority date |
| PCT Article 22 / Chapter I | 30 months |
| PCT Article 39 / Chapter II | 30 months |
| No priority claim | 30 months from the international filing date |
| Language of proceedings | Farsi |
| National phase translation | Required |
| Local representative | Required for non-resident applicants |
| Power of Attorney | Legalized Power of Attorney signed by the applicant |
| National filing fee | Payable within the applicable national phase time limit |
| Missed deadline | Reinstatement may be available under PCT Rule 49.6 |
| Reinstatement standard | Due care |
| Substantive examination | Required |
| Patent term | 20 years from filing |
| Annual fees for PCT cases | Begin two years after the international filing date |
| Principal Iranian patent legislation | Act on the Protection of Industrial Property 2024 |
The 30-month deadline, Farsi translation requirement, resident-agent requirement, reinstatement route and other PCT-specific requirements are reflected in the current Iran national-phase framework used in JavanLex’s source-controlled reference. JavanLex_PCT_National_Phase_Ira…
2026 Update
This guide reflects Iran’s Act on the Protection of Industrial Property 2024, the Patent Cooperation Treaty and PCT Regulations, the continuing provisions of the 2009 Executive Regulations to the extent that they remain applicable, and the WIPO PCT Applicant’s Guide for Iran applicable from 1 January 2026.
One particularly important procedural point is that a missed national-phase deadline should not automatically be treated as an irreversible loss of rights. Iran currently permits a request for reinstatement under PCT Rule 49.6, subject to the due-care criterion and strict time limits.
Primary Legal Sources
WIPO PCT Applicant’s Guide — Iran
Act on the Protection of Industrial Property 2024
Executive Regulation of Patent, Industrial Designs and Trademarks Registration Act
Patent Cooperation Treaty & Regulations — WIPO
In This Guide
1. What Does PCT National Phase Entry in Iran Mean?
The Patent Cooperation Treaty does not create a single worldwide patent.
A PCT application provides a unified international filing framework and allows an applicant to preserve the possibility of seeking patent protection in designated Contracting States while deferring many national filing decisions and costs.
Where Iran has been designated or elected in an international application, the applicant may continue the application before the Iranian Intellectual Property Center by entering the Iranian national phase.
At that point, the matter becomes an Iranian patent prosecution.
The international search report, written opinion and, where applicable, international preliminary examination report may remain important prosecution materials. They do not, however, determine whether an Iranian patent will ultimately be granted.
The Iranian Intellectual Property Center applies Iranian substantive patent law when examining the application. JavanLex’s current reference expressly distinguishes the international PCT stage from the national examination conducted under Iranian law. JavanLex_PCT_National_Phase_Ira…
Practical consequence
A favorable international search does not guarantee allowance in Iran.
Likewise, an unfavorable written opinion does not necessarily mean that useful Iranian protection cannot be obtained. The international record should instead be treated as part of the prosecution strategy once the application enters Iran.
2. What Is the PCT National Phase Deadline in Iran?
The standard deadline for entering the Iranian national phase is 30 months from the relevant priority date.
Iran applies the same 30-month period under both:
- PCT Article 22(1) for the ordinary Chapter I route; and
- PCT Article 39(1)(a) where Chapter II has been used.
Requesting international preliminary examination therefore does not create a 31-month deadline in Iran.
How is the 30-month deadline calculated?
One valid priority claim
The deadline is normally 30 months from that priority date.
Multiple priority claims
The earliest relevant priority date normally controls.
No priority claim
The 30-month period is calculated from the international filing date.
These calculation rules are set out in the current JavanLex PCT reference. JavanLex_PCT_National_Phase_Ira…
Practice Note — Do not automatically calculate 30 months from the PCT filing date
Where a priority claim exists, the relevant priority date ordinarily controls the national-phase deadline.
The deadline should be independently checked against the official PCT bibliographic record.
Foreign counsel should avoid relying solely on an internal docket entry, client-supplied date or prior counsel calculation if the Iranian filing has not yet been reviewed.
Priority restoration, corrections to bibliographic data and other procedural circumstances can also require additional analysis.
3. What Is Required for PCT National Phase Entry in Iran?
The exact filing package depends on the individual application, but national phase entry normally requires attention to the following matters:
- national-phase filing before the applicable deadline;
- payment of the Iranian national filing fee;
- required patent documents;
- Farsi translation;
- accurate applicant and inventor data;
- local representation for a non-resident applicant;
- Power of Attorney formalities;
- relevant corporate or legal-existence documentation;
- correct treatment of Article 19 and Article 34 amendments;
- priority and ownership information; and
- review of annual-fee obligations already arising from the international filing date.
JavanLex’s reference treats these elements as the core national-phase filing package. JavanLex_PCT_National_Phase_Ira…
A separate copy of the international application is not ordinarily required because the International Bureau transmits the application to the designated Office. A copy may become relevant in exceptional cases, including certain early-entry situations. JavanLex_PCT_National_Phase_Ira…
Practical consequence
National phase entry should not be handled simply by forwarding a specification for translation.
The PCT record should first be reviewed as a complete procedural file.
4. What Must Be Translated into Farsi for PCT Entry in Iran?
Proceedings before the Iranian Intellectual Property Center are conducted in Farsi.
For national phase purposes, the required translation generally includes the:
- description;
- claims;
- abstract; and
- textual matter appearing in the drawings.
The Farsi text should be treated as a substantive prosecution document rather than as an administrative convenience.
The current JavanLex reference emphasizes the need to preserve technical terminology, claim dependencies, reference numerals, units, chemical nomenclature, sequence references and the relationship between the description and claims. JavanLex_PCT_National_Phase_Ira…
Practice Note — Translation is part of prosecution strategy
A translation error can affect clarity, support and claim scope. The version carried into the Iranian file should therefore be checked with the same care as the source claims.
Particular attention should be given to:
- dependent-claim structure;
- numerical ranges;
- pharmaceutical and chemical terminology;
- functional expressions;
- technical terms with several possible Farsi equivalents; and
- terms that determine the breadth of a claim.
Translation errors may be corrected by reference to the international application as originally filed, subject to the applicable procedural requirements.
A correction should repair the translation. It should not introduce technical information that was absent from the original disclosure.
Suggested internal link:
Read more: Farsi Translation Requirements for PCT National Phase Entry in Iran →
5. How Are Article 19 and Article 34 Amendments Handled?
International-phase amendments should be identified before the Iranian national-phase package is finalized.
Article 19 amendments
Where claims were amended under PCT Article 19, the file should identify:
- the claims as originally filed;
- the amended claims;
- any statement accompanying the Article 19 amendments; and
- the version intended to form the basis of Iranian prosecution.
Article 34 amendments
If the application proceeded under Chapter II, the file should also be reviewed for amendments made under Article 34 and any amended pages contained in the international preliminary examination record.
JavanLex’s source-controlled reference expressly calls for correct handling of both Article 19 amendments and Chapter II amendments in the Iranian national phase. JavanLex_PCT_National_Phase_Ira…
Practical consequence
Foreign counsel should not send only the “latest claims” without explaining the international-phase amendment history.
The Iranian filing team should understand what was originally filed, what changed during the PCT phase and what claim set is intended for local prosecution.
6. Is Local Representation Required for a PCT Applicant in Iran?
Yes. An applicant who does not reside in Iran must appoint a resident representative for the Iranian national phase.
The current PCT requirements for Iran also provide for a legalized Power of Attorney signed by the applicant.
JavanLex’s current reference records both the resident-agent requirement and the legalized Power of Attorney requirement. JavanLex_PCT_National_Phase_Ira…
For corporate applicants, supporting documentation concerning the applicant’s legal existence and corporate particulars may also be relevant.
Near-deadline cases
Where instructions are received close to the national-phase deadline, certain supporting formalities may, depending on the circumstances and current Office practice, be completed through an applicable deficiency process after a timely filing.
That should not be confused with an extension of the 30-month PCT deadline.
Practice Note — Filing deadline and deficiency cure are different
A timely national-phase filing may sometimes be perfected later through a deficiency procedure. That does not mean the 30-month national-phase deadline itself has been extended.
Because aspects of deficiency practice are operational rather than purely statutory, the applicable cure period should be confirmed for the individual case at the time of filing. JavanLex’s reference intentionally distinguishes these practice points from black-letter rules. JavanLex_PCT_National_Phase_Ira…
7. What Documents Should Foreign Patent Counsel Send?
For an efficient initial review, foreign counsel should ideally provide:
- PCT application number;
- WO publication number;
- international filing date;
- earliest priority date;
- complete priority information;
- current applicant name and address;
- applicant legal form and country;
- inventor details;
- current bibliographic record;
- Article 19 amended claims and statement, if any;
- Chapter II status;
- Article 34 amendments, if any;
- International Search Report;
- Written Opinion;
- International Preliminary Report on Patentability, where available;
- source-language specification;
- drawings;
- sequence listing, where applicable;
- information concerning assignments, mergers or name changes;
- executed Power of Attorney, where available; and
- instructing firm’s reference.
A detailed filing checklist appears in JavanLex’s existing PCT reference. JavanLex_PCT_National_Phase_Ira…
Applicant changes and ownership
The current applicant should also be checked against the PCT record.
If a change of applicant has already been recorded during the international phase, the relevant International Bureau record should be reviewed.
Where a change occurred but was not reflected internationally, supporting documentation may be required in Iran. JavanLex_PCT_National_Phase_Ira…
8. What Happens If the 30-Month PCT Deadline Is Missed?
A missed 30-month deadline should not automatically be characterized as an irreversible loss of rights in Iran.
Iran currently permits a request for reinstatement under PCT Rule 49.6.
However, the applicable criterion is due care.
This is therefore not an automatic grace period.
The applicant must establish that the failure to perform the required act occurred despite the due care required by the circumstances.
What is the time limit for requesting reinstatement?
The request must be made within the earlier of:
- two months from removal of the cause of the failure; or
- 12 months from expiry of the missed national-phase deadline.
The omitted act must also be completed and the applicable reinstatement fee paid. JavanLex_PCT_National_Phase_Ira…
What evidence may be relevant?
Depending on the circumstances, a due-care assessment may involve:
- docketing records;
- internal deadline controls;
- instructions sent and received;
- correspondence;
- the specific event causing the missed deadline;
- responsible personnel and supervision;
- exceptional circumstances; and
- action taken after the failure was identified.
Practice Note — A missed deadline is not automatically fatal, but recovery is not guaranteed
Rule 49.6 provides a remedy, not a routine extension. A potentially late case should be reviewed immediately.
Suggested internal link:
Read the detailed guide: Iran PCT 30-Month Deadline and Reinstatement under Rule 49.6 →
9. Can Priority Be Restored in Iran?
Potentially, yes.
Restoration of priority should be distinguished from reinstatement of a missed national-phase deadline.
Reinstatement under Rule 49.6 concerns failure to perform the acts required for national phase entry within the applicable national-phase period.
Restoration of priority concerns an international application filed after the ordinary 12-month Paris priority period but within the additional period recognized by the PCT restoration framework.
Iran applies the due-care criterion to restoration requests.
For a request under PCT Rule 49ter.2 before the Iranian Office, JavanLex’s current reference records a deadline of one month from national phase entry. JavanLex_PCT_National_Phase_Ira…
The two remedies address different procedural failures and should not be treated interchangeably.
10. What Happens After PCT National Phase Entry in Iran?
National-phase filing is only the beginning of the Iranian patent procedure.
The application is subject to Iranian formality and substantive examination.
Under the 2024 Act, the principal patentability requirements include:
- novelty;
- inventive step; and
- industrial applicability.
Iranian law also addresses matters such as:
- sufficiency of disclosure;
- clarity;
- support;
- unity of invention; and
- excluded subject matter.
The current JavanLex reference states that the Iranian Intellectual Property Center conducts its own examination under Iranian law and that the PCT search and examination results are not binding. JavanLex_PCT_National_Phase_Ira…
For PCT national-phase applications specifically, the current PCT guidance used in the reference states that substantive examination takes place within one year of national-phase entry, with the possibility of an extension of up to six months.
International search results still matter
The International Search Report, Written Opinion and International Preliminary Report on Patentability can still be useful.
They may help identify:
- likely novelty objections;
- inventive-step issues;
- clarity problems;
- unity concerns; and
- amendments worth considering before or during Iranian prosecution.
They are informative rather than determinative.
Suggested internal link:
Read more: What Happens After PCT National Phase Entry in Iran? Examination and Prosecution →
11. Can Claims Be Amended During Iranian Prosecution?
Yes, subject to the applicable procedural stage and the no-added-matter rule.
A fundamental limitation is that an amendment must not introduce subject matter beyond the disclosure of the application as originally filed.
JavanLex’s current reference records the same principle and distinguishes translation correction from substantive amendment. JavanLex_PCT_National_Phase_Ira…
Why this matters in PCT cases
By the time an international application reaches Iran, foreign counsel may already have:
- an international written opinion;
- a Chapter II report;
- prosecution experience in another jurisdiction; or
- an amended claim set.
Those materials can inform Iranian prosecution strategy.
However, any proposed amendment must remain anchored to the original disclosure.
12. What Happens If the Iranian Examiner Finds Lack of Unity?
An Iranian patent application must relate to one invention or to a group of inventions linked by a single general inventive concept.
If lack of unity is identified, additional subject matter may potentially be pursued through divisional applications, subject to the applicable requirements.
A divisional application may preserve the filing date of the parent application and, where applicable, its priority date. JavanLex_PCT_National_Phase_Ira…
Practical consequence
Large PCT applications with several inventive concepts should be reviewed before extensive translation and prosecution work begins.
Possible divisional strategy, claim grouping and cost implications can often be anticipated at intake.
13. How Long Does an Iranian Patent Last, and When Are Annual Fees Due?
An Iranian patent has a maximum term of 20 years from the filing date, subject to the statutory maintenance requirements.
For a PCT-originating Iranian application, the relevant filing date for the maintenance timetable is the international filing date.
This is practically important because maintenance obligations may already require attention by the time a PCT application enters Iran at 30 months.
Under the current framework reflected in JavanLex’s reference, annual fees begin two years after the international filing date and continue thereafter. JavanLex_PCT_National_Phase_Ira…
The 2024 Act also permits maintenance payments to be made annually or periodically and allows payment covering a five-year period.
A six-month late-payment period is available subject to the applicable statutory surcharge.
Practice Note — Check annuities at national-phase intake
Do not assume maintenance starts only after grant or only from the Iranian national-phase filing date.
14. PCT National Phase vs Direct Paris Convention Filing in Iran
Using the PCT is not the only route for obtaining patent protection in Iran.
A foreign applicant may instead file directly in Iran while claiming Paris Convention priority, provided the Iranian filing is made within the applicable 12-month patent priority period and the relevant priority requirements are satisfied.
The two routes are primarily different in timing and strategy.
| Factor | Direct Paris Filing | PCT → Iran National Phase |
|---|---|---|
| Initial Iran decision | Must be made relatively early | Can generally be deferred |
| Priority timeline | Normally 12 months | Iran entry at 30 months |
| Translation/local cost | Incurred earlier | Generally deferred |
| International search | No PCT search by reason of direct filing | International Search Report available |
| Iranian examination | Full national examination | Full national examination |
| Patent ultimately obtained | Iranian patent | Iranian patent |
JavanLex’s reference provides the same strategic comparison and confirms the 12-month Paris priority route under the current Iranian framework. JavanLex_PCT_National_Phase_Ira…
Neither route produces a substantively “stronger” Iranian patent simply because of the filing mechanism.
Both ultimately lead to examination under Iranian patent law.
Suggested internal link:
Read more: PCT National Phase vs Paris Convention Patent Filing in Iran →
15. Iran PCT National Phase Filing Checklist
Before sending filing instructions to Iranian counsel, confirm the following:
PCT record
- PCT application number
- WO publication number
- international filing date
- earliest priority date
- all priority claims
Applicant and inventor
- current applicant name
- legal form
- address and country
- inventor names and addresses
- assignments, mergers or name changes
Amendments
- Article 19 amended claims
- Article 19 statement
- Chapter II status
- Article 34 amendments
- relevant IPRP annexes
Patent documents
- source-language description
- claims
- abstract
- drawings
- sequence listing, where applicable
Formalities
- Power of Attorney
- corporate legal-existence documentation
- filing deadline
- instructing firm reference
- billing contact
Prosecution information
- International Search Report
- Written Opinion
- International Preliminary Report on Patentability
- any known prosecution or claim-strategy concerns
Need a reusable checklist?
See our Iran PCT National Phase Filing Checklist for Foreign Patent Attorneys.
Entering a PCT Application into Iran?
JavanLex assists foreign patent attorneys, IP firms, in-house IP teams and international applicants with:
- deadline verification;
- PCT record review;
- Farsi translation coordination;
- local representation;
- national-phase filing;
- applicant and ownership review;
- Article 19 and Article 34 amendments;
- examination and office-action responses;
- amendments and divisional strategy;
- grant formalities;
- annuity management; and
- subsequent recordals.
View our PCT National Phase Entry in Iran service →
16. FAQ
What is the PCT national phase deadline in Iran?
30 months. The standard deadline is 30 months from the relevant priority date under both PCT Article 22 and Article 39.
Is the Iranian PCT deadline 30 or 31 months?
30 months. Chapter II does not extend the Iranian deadline to 31 months.
What happens if there is no priority claim?
The 30-month period is calculated from the international filing date.
Is a Farsi translation required?
Yes. The national-phase documents must be translated into Farsi in accordance with the applicable PCT requirements.
Does a foreign applicant need an Iranian representative?
Yes. A non-resident applicant must appoint a resident representative.
Is a legalized Power of Attorney required?
Yes. The current Iran PCT requirements provide for a legalized Power of Attorney signed by the applicant.
Can a missed 30-month deadline be reinstated?
Potentially. Iran permits a request under PCT Rule 49.6, subject to the due-care criterion and strict time limits.
Is reinstatement automatic?
No. It is a remedial procedure requiring the applicant to satisfy the applicable due-care standard.
Are the PCT search results binding on the Iranian examiner?
No. They may be useful in prosecution, but the Iranian application is examined under Iranian patent law.
Can the claims be amended after national-phase entry?
Yes, subject to procedural requirements. Amendments must not introduce subject matter beyond the original disclosure.
Can a divisional application be filed in Iran?
Potentially, yes. Divisional applications may be used where additional inventions need to be pursued separately, subject to the applicable statutory requirements.
How long does an Iranian patent last?
The maximum term is 20 years from the filing date, subject to maintenance requirements.
When do annual fees begin for a PCT case?
Under the current Iranian PCT framework, annual fees begin two years after the international filing date.
Can an applicant file directly in Iran instead of using the PCT?
Yes. A direct Iranian patent application may claim Paris Convention priority where the applicable 12-month priority requirements are satisfied.
Need Iranian Local Counsel for a PCT Filing?
Foreign patent firms and in-house IP teams may send JavanLex the PCT/WO number, applicant name, firm reference and anticipated deadline for an initial filing review.
Request Filing Requirements & Current Fee Quote
Legal Basis and Review Note
This guide was last reviewed in October 2026 against:
- the Act on the Protection of Industrial Property 2024;
- the Patent Cooperation Treaty and PCT Regulations;
- the continuing provisions of Iran’s 2009 Executive Regulations, to the extent applicable under the 2024 Act; and
- the WIPO PCT Applicant’s Guide — Iran, applicable from 1 January 2026.
JavanLex’s internal PCT reference uses the same source hierarchy and expressly distinguishes statutory rules, PCT requirements and current Iranian Intellectual Property Office practice. JavanLex_PCT_National_Phase_Ira…
Procedural practice, official fees and documentary requirements may change. Specific deadlines and filing requirements should therefore be verified against the individual international application before action is taken.
