PCT National Phase Filing in Mexico

Bring Your International Application Into Mexico

If you've filed an international application under the Patent Cooperation Treaty, entering the Mexican national phase is how you actually secure patent protection here. Our team at Brealant manages national phase entry, including Spanish translation, so your international filing date and priority are preserved.

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Essential Guide to PCT National Phase Filing in Mexico

Protecting Your International Filing with Brealant's Expertise

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What National Phase Entry Involves
National phase entry is the process of converting an international PCT application into a national application before IMPI, under the Ley Federal de Protección a la Propiedad Industrial, including a certified Spanish translation.
Doesn't Guarantee Grant
Entering the national phase starts Mexican examination; it doesn't guarantee the patent will be granted.
Claims May Need Adaptation
Claims accepted internationally can still require adaptation to meet Mexican examination practice.

A Hassle-Free PCT National Phase Filing Journey with Brealant

Contact
Reach out to Brealant with your PCT application details well ahead of the deadline.
Search
We review your PCT application and any International Search/Preliminary Examination reports.
Quote
Receive a service quote for the national phase entry and prosecution.
Pay
Proceed with secure payment for the selected services.
File
We prepare a certified Spanish translation, adapt claims if needed, and file the national phase entry with IMPI.
Wait
Your application publishes and proceeds through IMPI's substantive examination.
Response
Once examination concludes favourably, IMPI proceeds to grant of the Mexican patent.

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Clear, Simple Steps Into the Mexican National Phase

Mexico's national phase entry deadline is 30 months from the earliest priority date claimed in the PCT application, with no extensions generally available. Understanding this firm deadline, and preparing the required Spanish translation in good time, is the clearest way to preserve your Mexican patent rights.

Safeguarding Your Priority Date in Mexico — With Brealant by Your Side

The 30-month window is firm, with no extension generally available once it passes. Brealant tracks PCT priority dates for clients well ahead of the deadline, so Mexican rights are never lost through an administrative oversight or a late translation.

Limitations

What National Phase Entry Cannot Do

National phase entry is essential, but it has boundaries

Firm Deadline
The 30-month deadline is generally firm, with no extension available if missed.
Doesn't Guarantee Grant
Entering the national phase starts Mexican examination; it doesn't guarantee the patent will be granted.
Claims May Need Adaptation
Claims accepted internationally can still require adaptation to meet Mexican examination practice.
Local Representation Required
Non-residents must appoint a Mexican patent agent to prosecute the application before IMPI.
Separate Maintenance Obligations
Once granted, the Mexican patent has its own maintenance fee schedule, independent of other jurisdictions.

Brealant reviews your PCT application early enough to address these issues well before the deadline.

What a National Phase Entry Protects

Timely national phase entry protects

Your Priority Date
The earliest priority date claimed in your PCT application, preserved for the Mexican filing.
Your Filing Strategy
The option to pursue Mexican protection without having to file a separate application from scratch.
International Search Findings
The benefit of any favourable International Search or Preliminary Examination results.
Your Global Portfolio
Consistency between your Mexican rights and corresponding filings in other jurisdictions.

Brealant makes sure the transition from international to Mexican filing, translation included, is seamless.

Timeline for PCT National Phase Filing in Mexico

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National phase entry follows these stages

PCT Filing
The international application is filed, establishing the priority date.
National Phase Deadline
Mexico's national phase entry deadline is 30 months from the earliest priority date, with no extensions generally available.
Entry & Translation
The national phase application, with certified Spanish translation, is filed and examined.
Grant
Once examination concludes favourably, IMPI proceeds to grant of the Mexican patent.

Missing the 30-month national phase deadline generally means losing the ability to obtain patent protection in Mexico via that application.

Understanding National Phase Filing Costs in Mexico — Simplified with Brealant

Costs cover both the entry itself and subsequent prosecution

Official Filing Fees
IMPI charges an official national phase entry fee, in Mexican pesos, plus subsequent examination fees.
Professional fees
IMPI charges an official national phase entry fee, in Mexican pesos, plus subsequent examination fees.

We quote this once we've reviewed your PCT documents, so costs are clear before you commit.

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Continued Support After National Phase Entry in Mexico — Supported by Brealant

Once national phase entry is filed, Brealant manages the Mexican application through publication, examination, and any office actions, keeping it aligned with your broader international patent strategy.

Frequently Asked Questions

What is the deadline to enter the Mexican national phase?

30 months from the earliest priority date of your PCT application, with no extensions generally available.

Do I need a local patent agent to file the national phase?

Yes, non-residents must appoint a Mexican patent agent or attorney to prosecute the application before IMPI, which Brealant provides.

Will my PCT claims need to change for Mexico?

Sometimes — claims that were acceptable internationally can require adaptation to meet Mexican examination practice, which we assess on entry.

Does the national phase filing need to be in Spanish?

Yes, a certified Spanish translation of the PCT application is required as part of national phase entry, which Brealant arranges.

Can the national phase deadline be extended?

Generally no — the 30-month deadline is firm, so it's important to instruct Brealant well before it falls due.

Does Mexico participate in the Patent Prosecution Highway?

Yes, IMPI runs PPH agreements with a number of patent offices, which can accelerate examination for national phase applications that qualify.

How much does it cost to enter the Mexican national phase?

Costs include IMPI's national phase entry fee and translation costs, plus Brealant's professional fee, which we quote before the 30-month deadline.

What happens immediately after national phase entry is filed?

IMPI conducts a formalities check, then the application proceeds toward publication and substantive examination alongside directly filed applications.

Can a PCT application be used to seek utility model protection in Mexico?

Yes, a PCT application can enter the Mexican national phase as either a patente de invención or a modelo de utilidad, depending on the invention.

Can I make amendments to my claims when entering the Mexican national phase?

Yes, claims can be amended on entry, and we routinely review them against Mexican examination practice before filing.