Estudio Colmenares
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The practice at Estudio Colmenares is known for handling trademark enforcement, anti-counterfeit strategies and IP litigation mandates. Its client base includes both regional and international brands and it often assists with trademark infringement actions, oppositions and administrative enforcement proceedings. Firm general manager Luis Gayoso Frayssinet heads up the group. Guillermo Melgarejo represents clients in trademark infringement actions, while associate Manuel Fernández-Stoll handles administrative proceedings concerning trademark opposition. Associate Gino Piaggio, who joined the firm in September 2025, is experienced in patent protection. In December 2025, former practice head María del Carmen Arana left the firm.
Legal 500 Editorial commentary
Key clients
- Natura &Co Luxembourg Holdings
- Puma
Work highlights
Advised a client on obtaining a patent, successfully responding to objections of use and inventiveness.