SUMOL+Marcas, S.A. v Sumo IP Holdings Pty Ltd

The Federal Court of Australia heard a dispute between SUMOL+Marcas, S.A. (SUMOL), a Portuguese company, and Sumo IP Holdings Pty Ltd (Sumo IP), an Australian company. The core of the disagreement concerned the alleged infringement of SUMOL's trade mark "SUMOL" by Sumo IP's use of the trade mark "SUMO" and related branding in Australia. SUMOL sought to restrain Sumo IP from using its trade mark, alleging that such use would likely cause confusion among consumers and dilute the distinctiveness of SUMOL's mark.

The primary legal issue before the Court was whether Sumo IP's use of the "SUMO" trade mark constituted an infringement of SUMOL's registered trade mark "SUMOL" under the *Trade Marks Act 1995* (Cth). This involved determining whether the marks were substantially identical or deceptively similar, and whether the goods or services in relation to which the marks were used were similar. The Court also considered whether Sumo IP's use of the mark was likely to deceive or cause confusion to a substantial number of persons.

Justice Walters found that while the marks were not identical, they were deceptively similar. His Honour applied the principles established in cases such as *Shell Co of Australia Ltd v Esso Standard Oil (Australia) Ltd* and *Parkdale Custom Built Furniture Pty Ltd v Puxu Pty Ltd*, focusing on the overall impression of the marks and the likelihood of confusion in the marketplace. The Court considered the visual and phonetic similarities between "SUMOL" and "SUMO," as well as the nature of the goods and services offered by both parties. Ultimately, the Court concluded that there was a real likelihood of deception or confusion among consumers, leading to a finding of trade mark infringement.