The Two-Month Opposition Window at TÜRKPATENT

In Türkiye, trade mark conflicts are not policed solely by the registry. While TÜRKPATENT examines applications against absolute grounds for refusal (such as descriptiveness and lack of distinctiveness) on its own initiative, relative grounds — conflicts with earlier marks, well-known marks, and other prior rights — are examined only upon opposition by affected third parties. This means that the responsibility for detecting and challenging conflicting applications rests squarely with brand owners. Missing the opposition window can have serious consequences, as the only remaining remedy is a more costly and time-consuming court action for invalidation.

How the System Works

Once TÜRKPATENT completes its examination on absolute grounds and finds no basis for refusal, the application is published in the Official Trade Mark Bulletin. From the date of that publication, any person — natural or legal, Turkish or foreign — has exactly two months to file a notice of opposition. This deadline is set by Article 18 of the IPC and is strictly enforced. There is no provision to extend it, and late-filed oppositions are not accepted under any circumstances.

Grounds for Opposition

Oppositions may be filed on both absolute and relative grounds. In practice, the most commonly invoked relative grounds under Article 6 include:

• Article 6(1) — Likelihood of confusion: The application is identical or similar to an earlier mark for identical or similar goods or services, creating a likelihood of confusion including association.
• Article 6(3) — Prior unregistered rights: The opponent holds rights in an unregistered mark or other sign used in the course of trade before the application or priority date.
• Article 6(4) — Well-known marks: The application conflicts with a mark that is well known within the meaning of Article 6bis of the Paris Convention.
• Article 6(5) — Reputation: The earlier mark has a reputation in Türkiye and the application would take unfair advantage of, or be detrimental to, its distinctive character or repute.
• Article 6(9) — Bad faith: The application was filed in bad faith.

The Opposition Procedure

The opposition must be filed in writing with TÜRKPATENT, accompanied by the prescribed fee and a statement of grounds and supporting evidence. For foreign opponents, representation by a Turkish trade mark agent is mandatory for all proceedings before the Office.

Once the opposition is filed, TÜRKPATENT notifies the applicant, who has one month from notification to submit a response. The applicant’s response may include counter-arguments, evidence, and — if the conditions are met — a request for proof of use of the opponent’s mark. TÜRKPATENT’s Oppositions Division then evaluates the submissions from both parties and issues a decision.

If either party is dissatisfied with the decision, it may appeal to TÜRKPATENT’s Re-examination and Evaluation Board within two months. The Board’s decision constitutes the Office’s final administrative decision. If a party wishes to challenge the Board’s decision, it must file an action before the specialised Intellectual Property Courts in Ankara within two months of notification.

Why the Deadline Matters

The two-month opposition period is one of the shortest in any major trade mark jurisdiction. By comparison, the European Union allows three months, China allows three months, and the United States allows thirty days with extensions available. In Türkiye, there is no extension mechanism and no grace period. If the deadline passes, the application will proceed to registration regardless of the strength of the opponent’s case on the merits.

Once a conflicting mark is registered, the opponent’s only option is to file an invalidation action before the competent courts under Article 25 of the IPC. This is significantly more expensive, time-consuming, and uncertain than an administrative opposition. For relative grounds, the invalidation action must generally be filed within five years of the registration date, although bad faith claims have no time limit.

Monitoring Is Essential

Because TÜRKPATENT does not examine relative grounds ex officio, brand owners cannot rely on the Office to detect or block conflicting applications. The only reliable defence is active monitoring of the Official Trade Mark Bulletin. Türkiye consistently ranks among the highest-volume trade mark filing jurisdictions in Europe, with over 130,000 applications annually. Without systematic watch services, conflicting applications can easily pass through the publication window unnoticed.

Strategic Recommendations

• Implement a watch service: Monitor the Turkish Trade Mark Bulletin for identical and similar marks across relevant classes. Professional watch services can flag conflicting applications within days of publication, maximising the time available to prepare an opposition.
• Pre-authorise your Turkish agent: Ensure your Turkish trade mark agent has standing instructions and authority to file oppositions on short notice. The two-month deadline leaves no room for delays in obtaining instructions from headquarters.
• Prepare evidence in advance: If you anticipate potential conflicts, maintain a ready file of evidence demonstrating your mark’s use, reputation, and distinctiveness in Türkiye. This allows oppositions to be filed quickly and substantively.
• Act immediately: Do not wait until the final days of the two-month window. Filing early ensures time to address any procedural issues and allows the opposition to be reviewed on its merits.

Key Takeaway

Common Pitfalls

Several common mistakes can undermine an opposition strategy in Türkiye. Filing an opposition without sufficient supporting evidence is a frequent error — a bare assertion of rights without documentation of use, reputation, or the relationship between the marks will rarely succeed. Another pitfall is failing to appoint a Turkish agent in advance; foreign parties must be represented by a local agent, and engaging one after the deadline has nearly expired leaves inadequate time to prepare a substantive filing. Finally, some brand owners assume that a registered mark in another jurisdiction automatically provides protection in Türkiye. It does not — Turkish trade mark rights are territorial, and an opposition must be grounded in rights recognised under Turkish law.

Türkiye places the burden of policing trade mark conflicts on brand owners, not the registry. The two-month opposition window is strict, non-extendable, and among the shortest in any major jurisdiction. Brand owners who fail to monitor the Turkish Bulletin and act within the deadline risk losing their only efficient administrative remedy against conflicting applications.