The Court determined that Article 4(4)(a) of the Directive ensures protection for trade marks with a reputation by protecting the mark from damage to its distinctive character, or to its reputation, and it prohibits the subsequent mark from taking unfair advantage of the distinctiveness or repute of the earlier mark. The Court concluded that it should interpret Article 4(4)(a) in the same way that it interpreted Article 5(2) in an earlier ruling as the wording of these articles are designed to give trademarks with a reputation the same protection. The Court determined that under the
Adidas-Salomon and Adidas Benelux ruling of 2003, a plaintiff must establish that a link between the marks exists in the minds of the relevant public. The Court further goes on to state that while the establishment of the link is a requirement to show dilution, the presence of the link itself is not sufficient to establish that one of the three types of injury had occurred. In answering the questions posed by the Court of Appeal regarding the link the ECJ found that a court determining whether there exists such a link must look at all relevant factors and undertake a global analysis. Factors that the court considered relevant include: 1) the degree of similarity between the marks, 2) the nature of the goods or services for which the marks are registered, and the degree of similarity between those categories and the relevant consumers, 3) the strength of the earlier mark's reputation, 4) the degree of the earlier mark's distinctive character, and 5) the existence of the likelihood of confusion. The Court found that the relevant public should be the consumers of the product of the prior mark if the plaintiff alleges injury to the reputation or distinctive character of the prior mark. If the plaintiff claims that the later mark is gaining an unfair advantage then the relevant public to be considered is the consumers of the good identified by the subsequent mark. The Court next looked at what a court should consider to determine whether there was an injury. The Court concluded that to show injury by harm to the distinctive character of the mark or to its reputation, a plaintiff has to show that there was a change in the
economic behaviour of the average consumer of the goods for which the prior mark was registered. Likewise if a plaintiff wants to show that injury occurred due to the latter marks gaining of an unjust advantage it would have to be shown that use of the subsequent mark caused a change in the economic behaviour of the average consumer of the goods for which the subsequent mark was registered. The Court determined that the group whose economic behaviour changes must be analogous to the group considered to be the relevant public of the marks. Lastly the Court concluded that the change in economic behaviour need not be actual, but a subsequent mark should also be denied if it can be shown that there is a high likelihood of future harm to the prior mark. == Judgment ==