Trademark Invalidation in Türkiye: Removing a Registration

There are two ways to remove a registered Turkish trademark, and they are frequently confused. Cancellation addresses events after registration — above all non-use — and is now filed with TÜRKPATENT. Invalidation asserts that the mark should never have been registered, is heard by the courts, and operates retroactively.

Why the distinction matters

• Forum: the Office for cancellation, the Civil IP Court for invalidation.
• Grounds: post-registration developments versus a defect existing at the filing date.
• Effect: cancellation takes effect from the request; invalidity erases the mark from its filing date.

Grounds

• Absolute grounds overlooked at examination: lack of distinctiveness, descriptiveness.
• Relative grounds never raised because nobody opposed: likelihood of confusion with an earlier mark.
• Prior unregistered rights acquired through genuine use.
• Bad faith — filings made to block or extract payment from the true owner.
• Unauthorised registration by a commercial agent or representative.

The five-year acquiescence bar

If the earlier right holder knew, or should have known, of the later mark’s use and stayed silent for five years, invalidity can no longer be claimed — unless the later registration was made in bad faith. This is the clearest commercial argument for systematic watching: failing to notice a competitor for years can leave you with no remedy at all.

See our watch service and our article on non-use cancellation.

Timing versus commercial reality

Proceedings involve court-appointed experts and usually run beyond a year. If you need to launch now, faster routes — negotiating a letter of consent, or limiting the specification — often serve better than waiting for a judgment.

Talk to us about a blocking registration.

General information only, not legal advice.