Legal Principles Applicable to Trademarks

Like all other legal institutions, trademark law must comply with general legal principles. However, certain principles are specific and fundamental to trademark law and are shared by all countries that are signatories to the Paris Convention for the Protection of Industrial Property, thereby ensuring equal treatment among its Member States.

## Principle of Territoriality

Article 129 of the Brazilian Industrial Property Law establishes that trademark registration grants exclusive rights throughout the national territory:

> **Article 129.** Ownership of a trademark is acquired through a validly issued registration, in accordance with the provisions of this Law, and its owner is guaranteed the exclusive right to use it throughout the national territory, subject, in relation to collective and certification marks, to the provisions of Articles 147 and 148.¹

The Principle of Territoriality therefore means that a trademark registration provides protection only in the country in which it is obtained. A registration in Brazil grants trademark protection solely within Brazil.

Should the owner wish to obtain protection in other countries, an application must be filed with the competent authority in each relevant jurisdiction, at any time and always in accordance with the legislation in force in that territory.

## Principle of Priority

This principle addresses the need to resolve conflicts in cases where two or more trademarks cannot peacefully coexist, in which case the earlier trademark should prevail.

When the dispute concerns trademark applications filed with the Brazilian Patent and Trademark Office (INPI), the filing dates formally establish the creation of the respective rights, making the solution relatively straightforward: the trademark filed first has priority over a later application.

The more complex issue arises when a party has previously used a trademark but another party subsequently files an application for that trademark with the INPI.

Brazil adopts a registration-based trademark system, pursuant to Article 129 of the Industrial Property Law, under which trademark ownership is acquired through a validly issued registration. Nevertheless, there has been an ongoing debate regarding the rights of parties that used a trademark before another party applied for its registration with the INPI.

Article 129, Paragraph 1, of Law No. 9,279/1996 addresses this possibility:

> **Paragraph 1.** Any person who, in good faith, had been using in Brazil, for at least six months prior to the priority or filing date, an identical or similar trademark to distinguish or certify identical, similar, or related products or services shall have a right of precedence to registration.²

Although the solution may appear clear and straightforward, the priority criterion raises questions regarding its practical enforceability.

In practice, this may create legal uncertainty for the owner of a trademark registration, since ownership may be challenged by another party that can prove prior use, provided that the trademark in question identifies products or services that are identical, similar, or related.

Trademark protection should therefore be pursued promptly in order to anticipate and prevent potential issues that could lead to undesirable administrative or judicial disputes.

## Principle of Specialty

The Principle of Specialty limits trademark protection to the products or services claimed and granted to the owner, as well as to similar or related products and services, even when they are included in different classes from the protected goods or services.

Accordingly, while the Principle of Specialty prevents identical or similar trademarks from coexisting when used to identify identical, similar, or related products or services, it also allows those same trademarks to coexist when their respective market sectors are sufficiently distinct and are unlikely to cause consumer confusion.

The definition of a trademark set forth in Articles 122 and 123 of the Industrial Property Law includes the requirement that a trademark be distinctive, since distinctiveness is essential to enable consumers to identify the products or services they are seeking.

Article 124 of the same Law addresses signs that cannot be registered. Its provisions essentially identify various circumstances in which consumers could be confused because they would be unable to distinguish between two or more trademarks.

Closely associated with the Principle of Specialty, the distinctiveness of a trademark is a fundamental requirement when dealing with marks used in the same market sector.

Law No. 9,279/1996 provides that a trademark must be distinctive and visually perceptible. Nevertheless, the phonetic characteristics of a trademark may also prevent the registration of another trademark with an identical or similar pronunciation, even when its written form or logo is visually entirely different.

Phonetic distinctiveness is therefore also required, since trademark confusion may arise solely through verbal communication, where no visual comparison is available to distinguish the marks.

In this regard, numerous administrative opinions have resulted in the rejection of trademark applications by the INPI, and several judicial decisions have held that phonetically similar trademarks are not registrable.

The distinctiveness requirement therefore seeks to ensure the primary function of a trademark: to individualize a product or service within a particular market sector and enable consumers to distinguish it from competing products or services.

Accordingly, when seeking trademark registration, it is essential to assess the registrability of the mark in light of the fundamental principles governing the trademark system.