What is International Registration?

International5 min readUpdated Mar 25, 2026

A trademark registration recorded with WIPO under the Madrid System that provides the basis for protection across designated member countries.

An international registration is a trademark registration recorded in the International Register maintained by the World Intellectual Property Organization (WIPO) under the Madrid System. It serves as the central record from which protection extends to each country designated by the trademark owner. The international registration is identified by a unique number (commonly prefixed with "IR" or a numerical sequence) and contains the details of the mark, the owner, the goods and services, and the list of designated countries.

The international registration is not itself a grant of trademark protection in any country. Rather, it functions as a bundle of national (or regional) trademark applications, each of which is examined independently by the designated country's trademark office. Protection in each country depends on whether that country's office accepts or refuses the designation within its examination period. If accepted, the mark receives the same protection it would have if it had been registered directly with the national office.

An international registration has an initial term of ten years from the date of registration and can be renewed indefinitely for successive ten-year periods through a single renewal payment to WIPO. Changes to the registration, such as changes in ownership, limitations of goods and services, or designation of additional countries (called "subsequent designations"), are recorded centrally by WIPO and take effect across all relevant designations.

Why It Matters

The international registration is the cornerstone document of a Madrid System trademark portfolio. Understanding its nature and limitations is essential for managing international trademark rights effectively.

One of the most important features of the international registration is its dependency on the home registration during the first five years. This "central attack" rule means that if the basic application or registration in the country of origin is refused, withdrawn, cancelled, or narrowed during the first five years of the international registration, the international registration is correspondingly affected in all designated countries. After five years, the international registration becomes independent, and the fate of the home registration no longer impacts it. This dependency period is a critical planning consideration that may influence the choice between Madrid System filing and direct national filing for strategically important markets.

Another important aspect is the concept of "transformation." If an international registration is cancelled due to central attack, the holder has the right to transform the cancelled designations into separate national applications in each designated country, preserving the original filing date of the international registration. This safety net mitigates the risk of central attack but involves additional cost and administrative effort.

The international registration also enables efficient portfolio management as business needs evolve. Subsequent designations allow the owner to extend protection to additional countries at any time, and territorial limitations or partial assignments can be recorded to reflect changes in business structure or market strategy.

How Signa Helps

Signa provides comprehensive access to international registration data through its API, drawing from WIPO's International Register as well as national registry data from 200+ member offices. This dual-source approach is essential because the status of an international registration depends on both the WIPO-level record and the decisions made by each designated country's office.

Signa's search capabilities allow brand owners and their attorneys to search the International Register for existing international registrations that may conflict with a proposed mark, providing the intelligence needed for clearance decisions before filing. The API returns detailed information about each international registration, including the mark, owner, goods and services, list of designated countries, and the status of each designation.

Signa's monitoring service tracks the lifecycle of international registrations, including new designations, refusals, acceptances, renewals, and changes of ownership. This monitoring is particularly important during the first five years of the international registration, when the central attack vulnerability exists, and throughout the examination periods in newly designated countries, when refusals may be issued.

Real-World Example

A Canadian food and beverage company files an international application under the Madrid Protocol for its new organic tea brand, designating the EU, United Kingdom, Japan, Australia, and South Korea. WIPO records the international registration and notifies the five designated offices.

Over the following 18 months, three designations are accepted without issue. The UK office issues a provisional refusal citing a prior national registration for a similar mark, and Japan raises an objection based on descriptiveness of one element of the mark. The company responds to both refusals: in the UK, they negotiate a consent agreement with the prior registrant, and in Japan, they submit evidence of acquired distinctiveness.

Two years later, the company decides to expand into Southeast Asian markets. Rather than filing new applications from scratch, they file a subsequent designation for their existing international registration, adding Thailand, Vietnam, and Singapore. These new designations benefit from the centralized management of the international registration, with renewal and recordal handled alongside the original designations.

The international registration becomes the single document through which the company manages trademark protection across eight countries and the EU, with one renewal deadline and centralized administration for changes, providing significant efficiency gains over maintaining nine separate national registrations.