Mexico's Merlin Duck Trademark Filing

"Registered trademark" and what actually happened

On June 26, 2026, Mexico's Ministry of Economy and the Mexican Institute of Industrial Property (IMPI), Mexico's patent and trademark authority, delivered to Karla Ivette Gómez López, Merlín's owner, a document that the joint release itself describes as the receipt acknowledging the beginning of the procedure. Much of the coverage —El Universal, La Jornada, Excélsior, among others— translated that incorrectly: "the Merlin Duck is now a registered trademark." That is false.

What exists today is a filed application, not a granted right. Between one and the other lies the entire administrative procedure that any distinctive sign must follow in Mexico: formal examination, publication in the Official Gazette, the period for third-party opposition, substantive examination and, only at the end of that procedure, the grant of a certificate or a refusal. Marcelo Ebrard said the quiet part out loud when he clarified that every application is subject to technical and legal analysis; that statement confirms that the Merlin Duck registration has not yet been granted.

The practical point erased by the media excitement is the one that matters most to any reader with a pending file. For ordinary applicants, that path takes months and often more than a year, even after Mexico's April 2026 reform created a five-month maximum period for distinctive-sign applications when there are no office actions or oppositions. That timeline should be read together with the analysis of Mexico's 2026 Federal Law for the Protection of Industrial Property reform. The duck's supposed express registration does not describe the real system; it describes an unfortunate exception.

The first pathology: almost no one protects a mark until it has value

I will leave doctrine aside for a moment and speak from practice, because this is the unfortunate conversation I have almost every week. The reflex of the Mexican rights-holder —the microbusiness, the creator, the family business, and sometimes even the corporation that should know better— is to register nothing while the asset has not yet shown that it is worth something. The trademark is treated as an unnecessary expense, a formality to be handled "when there is time" or "once we are already selling." The result is usually the same: the day the intangible begins to generate value is precisely the day it stops being alone in the filing line.

Merlín is the gentler and possibly lucky version of that story. A family of merchants from Mexico City's Historic Center had no reason to anticipate that its duck would end up wearing the national team jersey and being named a symbolic World Cup ambassador; no one plans to go viral. But the pattern illustrated by the case can be planned for, and that is why the case matters more than the anecdote. The value of a distinctive sign is not born with the registration: it is born from notoriety, use, and the association the public makes between a name and a source. The registration does not create that value; it is the administrative act that gives it protection. Those who wait until the value is evident before rushing to protect it almost always discover that the evidence also reached third parties who did not hesitate to file.

The uncomfortable point is that this pathology is not cured with more reform or shorter deadlines. It is cured with a culture of early protection, which is precisely what the system does not teach and what Merlín's badly narrated "happy ending" discourages. If the public concludes from the Merlin Duck case that going viral and waiting for the State to intervene is enough, the lesson left for most business owners and creators is exactly the wrong one.

The second pathology: the first filer and the burden of proving the obvious

Mexico follows an attributive trademark system: exclusive trademark rights are acquired through registration before IMPI, not by mere use, although the system recognizes exceptions. From that rule follows the principle that orders almost the entire board: priority by filing date, the "first in time, first in right" logic that decides who has the better expectation when two applications compete over the same sign. This is where the second pattern appears: the opportunistic first filing.

The file numbers tell the story. According to IMPI records reported by the press, on the night of June 17, 2026 —five days before the owner filed her own applications— unrelated third parties had already filed for the sign: David Sides Fuentes, from Mérida, with application 3643308 ("El Pato Merlín. El pato de la suerte" and design), and Rosa María Hernández Flores, from Zapopan, with filings in classes 35 and 25. The owner, Karla Ivette Gómez López, filed applications 3646513 and 3646554, one word mark and one design, only on June 22, after the case had reached the presidential morning press conference. Under strict filing priority, the third parties arrived first.

"It is a publicly known fact that the duck belongs to the family," said IMPI's head, Vidal Llerenas. A prior user who wants to displace the first filer must bring a cancellation action for prior use or, depending on the facts, bad faith; prove prior use with evidence; and document that use with the rigor IMPI demands —dates, scope, channels, continuity. For a family selling water on the street, that is a brutal evidentiary burden: expensive, demanding, and likely measured in years. The family, and anyone reading this, should understand the distinction now: being right and being able to prove it in a contested administrative file are not the same.

On the other hand, in practice I have seen the Institute cite prior applications ex officio as earlier rights and even invoke publicly known facts to stop an opportunistic registration during substantive examination when ownership appears to belong elsewhere. That power exists and, if used well, can spare the family the ordeal of cancellation proceedings. But a power is not a guarantee. The fact that IMPI may do it does not mean the result is assured, and it does not replace the formal procedure in which third parties —however questionable their intentions may be— retain the right to submit evidence, make arguments, and receive a reasoned decision.

Speed and preference: the file that went through National Palace

IMPI has spent months building a narrative of an institution that moves, reduces times, and modernizes. There is a real basis for that narrative, and I have recognized it before. I developed that point in "Mexico's Industrial Property Office Has Started to Move" and in "The Suit That Never Quite Fits". The problem is not that the Merlín case moved quickly. The problem is why it moved quickly.

A file became a priority not because of its complexity, age in the queue, or a replicable management criterion, but because the president mentioned it in the morning press conference —on June 23 she described the third-party filings as an "abuse" and instructed officials to support the family— and because the State apparatus decided to turn it into a symbol. The legal certainty Merlín received is not distributed at the filing counter; it was distributed through virality and political backing. Certainty that depends on whom one knows or who names one at National Palace is not legal certainty. At best, it is luck.

There is also a relevant administrative-law problem. Even if the authority receives instructions from the head of the executive branch, it must still decide this file —examine the merits, evaluate possible oppositions, and potentially hear contested proceedings. Yet it publicly advanced a view on ownership while the matter remains live. When the body that must decide announces the direction of what it has not yet resolved, it creates a problem of apparent impartiality and legal certainty, concepts administrative law takes seriously. That connects with what I have written about legal certainty and legitimate expectations. I am not suggesting bad faith by anyone; I am identifying a design that, if repeated in cases less sympathetic than a duck, becomes dangerous.

The contrast becomes more complex when one looks at the other side of the field. FIFA arrived at the 2026 World Cup with several hundred trademark registrations filed years in advance and with specialized counsel, a protection strategy I addressed in the analysis of ambush marketing in Mexico and in the World Cup legal marketing guide. The organizer did not need a morning press conference because it had structure. The Gómez family had neither one nor the other, and the difference is not merit; it is access.

The day after: virality does not sustain a trademark, use does

Suppose everything goes well: the third parties withdraw or IMPI refuses their applications, and the family obtains the certificates. The happy ending the press has already declared would barely be the beginning of the real obligation, because a registered trademark is a right sustained by use.

The law requires real and effective use of the sign as registered and for the goods or services it covers. It penalizes abandonment with lapse for three consecutive years of non-use. It also requires filing the declaration of use when the third anniversary of the grant arrives. Put differently, the notoriety Merlín has today does not buy immunity: if, in a few years, the mark is not genuinely exploited in the classes it protects, it remains exposed to loss precisely against someone who is using it. What preserves a distinctive sign is the commercial activity behind it.

For the family, this means that what they received was not a registration but a responsibility: turning a viral phenomenon into a real operation —merchandise, licensing, presence in the claimed classes, and so on— before the algorithm forgets the duck. It is the dull part of trademark law, the part no morning press conference resolves, and it is exactly what will decide whether this was a victory or only a photograph.

What remains for those without a mañanera

My reading of the case is sober and somewhat uncomfortable. Merlín appears to have escaped the worst outcome, yes, but through a path no one can reproduce: presidential attention, the Ministry of Economy's apparatus, and an IMPI willing to treat the file as a public cause. For the ordinary rights-holder —the one whose mark starts to have value and who discovers that someone else already filed it— there is no filing receipt delivered on camera and no declaration of publicly known fact that will spare the procedure. There are years, legal fees, and an evidentiary burden that is rarely kind.

From that follows the only recommendation that truly matters, and the one I repeat to clients and colleagues with the insistence of someone who has already seen how the movie ends when action comes late: protect your intangible assets before they become valuable, because the day they become valuable someone else will already be standing in the IMPI line. Recovering what was left unprotected costs time and money. Early registration is cheap compared with late litigation. That is the whole moral, and no morning press conference is needed to apply it.

If you have a sign, a name, or a product that is gaining traction and you have not registered it yet, today —not the day it is already valuable— is the moment to review it. Let us talk before someone else files first.

Frequently Asked Questions

Is the Merlin Duck already a registered trademark in Mexico?

No. On June 26, 2026, IMPI and Mexico's Ministry of Economy delivered a filing receipt to the Gomez family. That document acknowledges the beginning of the trademark procedure; it is not the registration certificate. A trademark registration exists only after the application clears formal examination, Gazette publication, the opposition period, and substantive examination.

What is the difference between a filing receipt and a trademark registration?

A filing receipt only proves that the application was received and that the procedure began. It does not grant exclusive rights. The registration certificate is the administrative act through which IMPI grants exclusive rights over the sign, and it arrives only at the end of the procedure if the application survives review.

How long does a trademark registration take in Mexico?

In practice, the procedure usually takes several months and often more than a year. Mexico's April 2026 reform created a five-month maximum period for distinctive-sign applications when there are no office actions or oppositions, but the actual timeline depends on whether formal issues, third-party oppositions, or substantive objections arise.

What can I do if someone filed my trademark first in Mexico?

Mexico follows a first-to-file priority rule. In principle, the better position belongs to the party that files first. There are exceptions, including prior use and bad faith, which must be asserted through cancellation proceedings before IMPI. The party challenging the earlier filing must prove prior use with evidence, which can be demanding and expensive.

Why does the filing date matter so much in Mexico?

Because Mexico's trademark system is attributive: exclusive trademark rights are acquired through registration before IMPI, not merely through use. That is why priority by filing date matters when two parties seek protection over the same sign.

Can a Mexican trademark registration be lost for non-use?

Yes. The law requires real and effective use of the sign as registered. Abandonment exposes the registration to lapse for three consecutive years of non-use. The owner must also file the declaration of use when required; fame or virality does not replace genuine commercial exploitation.