Castellanos & Co

IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Silver - Firms

IP boutique Castellanos & Co has cemented its presence on the IP scene with its “well-qualified team of professionals and extensive patent prosecution expertise”. The outfit’s life sciences capabilities are particularly well regarded and have attracted several pharmaceutical companies, including the likes of Gennova Biopharmaceuticals, 4D Molecular Therapeutics, Saint-Gobain Glass France and Takeda Pharmaceutical Company. Heading up the patent side is Margarita Castellanos, who possesses profound knowledge of Colombian patenting processes but is equally dextrous when navigating the intricacies of international portfolios too. Managing partner Ximena Castellanos brings formidable cross-border advocacy to the table. Her extensive international network of contacts has brought the outfit considerable work in delivering for foreign clients in Colombia, and 2021 saw 90 new entities enlist its services. Castellanos is proud to be one of Colombia’s only female-owned law firms and this year sees María Guevara, a chemical engineer and expert patent filer, join the IAM Patent 1000. Maria is regularly called upon for her expert advice on patent feasibility and other biotechnology prosecution instructions.

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