Meythaler & Zambrano Abogados
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Showcasing particular strength in trademark disputes, Meythaler & Zambrano Abogados is also adept in an array of contentious IP work, such as appeals against pharmaceutical patent enforcement and protection. Also of note is its work in complex anti-counterfeit enforcement actions in the pharmaceutical industry. Clients include companies looking to set up in Ecuador as well as large international pharmaceutical companies. The group also excels in copyright protection, in which Maria Belen Rivera is particularly active. She jointly leads the department alongside José Meythaler Baquero, Margarita Zambrano, who is skilled in disputes in the life sciences sector, and Sebastián Meythaler. This quartet is supported by Andrea Araujo Mero, a key associate and deputy head of the IP practice. Maricruz Cepeda is another key associate and heads the firm’s patents practice.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'The Intellectual Property practice at Meythaler & Zambrano Abogados is distinguished by its comprehensive, innovative, and strategic approach to the protection and defence of its clients' intangible assets. What makes this practice unique is its ability to combine deep legal experience with a technical understanding of the business and technological environment, enabling it to offer solutions that not only protect rights but also enhance the commercial value of intellectual property. In-house lawyers should know that Meythaler & Zambrano's Intellectual Property team is comprised of highly specialised professionals with national and international training and a solid track record in litigation, registration, trademark enforcement, patents, copyright, and technology transfer.'
- 'Collaboration and direct communication with Margarita Zambrano.'
Key clients
- Grupofarma Del Ecuador
- Merck Frosst Canada
Work highlights
Advised MSC-RE on a cross-border trademark dispute against MSCI, Inc., defending against trademark opposition claims in the the US, Brazil, Colombia, Mexico, Ecuador and El Salvador.


