Ana Castañeda

Patent Prosecution & Portfolio Management – drafting, filing, and prosecuting patents in Mexico and internationally, including PCT and Paris Convention filings.

Patentability & Validity Opinions – advising on technical and legal feasibility, conducting due diligence for innovation‑driven industries.

Industrial Designs & Utility Models – securing protection for design innovations and advising on enforcement strategies.

IP Litigation & Enforcement – representing clients in cancellation, infringement, and opposition actions before the Mexican Institute of Industrial Property and Federal Courts.

Cross‑Border IP Strategy – coordinating with international counsel to align patent and trademark protection across jurisdictions.

With more than 20 years of dedicated practice in intellectual property, Ana Castañeda has built a career defined by precision, perseverance, and client trust. She began her professional journey advising on patentability and validity opinions, quickly earning recognition for her ability to translate complex technical issues into clear, actionable strategies.

Over the years, Ana has become a leading figure in patent and trademark prosecution and portfolio management, guiding multinational corporations through drafting, filing, and enforcement in Mexico and abroad. Her career reflects a steady progression from associate to Partner and Head of Patents at C&L ATTORNEYS, a role in which she now leads cross‑border strategies and coordinates with international counsel to secure protection for innovation‑driven industries.

Ana’s career highlights include representing major players in pharmaceuticals, biotechnology, telecommunications, packaging, and mining technologies, where her hardworking ethos and detail‑driven advocacy have consistently delivered results. She is widely respected by peers, the Mexican Institute of Industrial Property, and Federal Courts for her persuasive advocacy and commitment to excellence.

Her trajectory embodies the values of C&L ATTORNEYS: teamwork, consistency, and going the extra mile. Today, Ana is recognized not only as a technical expert but as a trusted advisor who ensures intellectual property becomes a true competitive advantage for her clients.

INTA, APAA (Observer), LESI.

English, French, Spanish