Providing expert legal counsel in intellectual property, trademark registration, and advisory services across the European Union.
"Precision, integrity, and a thorough understanding of European intellectual property law — these are the foundations upon which every client relationship is built.
Jefferson Fernandes is an attorney at law based in Lisbon, Portugal, with a focused practice in intellectual property, trademark law, and legal advisory services. Registered with the European Union Intellectual Property Office (EUIPO), he advises clients across the European Union on the protection and enforcement of their intellectual assets.
Operating from the historic heart of Lisbon's Chiado district, the practice serves both individual clients and businesses seeking reliable, expert legal guidance in an increasingly complex European regulatory landscape.


Comprehensive trademark filing and prosecution before the EUIPO and national offices. From initial clearance searches to registration and portfolio management across EU member states.
Strategic advice on the protection of patents, copyrights, designs, and trade secrets. Guidance on IP strategy, licensing negotiations, and enforcement of rights.
Representation in opposition proceedings, cancellation actions, and infringement disputes before the EUIPO and Portuguese courts. Protecting your rights with precision and resolve.
General legal counsel for businesses and individuals operating within the European Union. Contract review, regulatory compliance, and cross-border legal guidance.
Advice on domain name disputes, cybersquatting, and the protection of digital assets. UDRP proceedings and online brand enforcement strategies.
Support for commercial transactions, corporate structuring, and business establishment in Portugal. Assistance for foreign investors and companies entering the Portuguese market.
This list is not exhaustive. If your matter falls outside these areas, please reach out — referrals to trusted colleagues are always available.
For enquiries regarding intellectual property matters, trademark registration, or general legal advice, please contact the office by email. All initial enquiries are treated with strict confidentiality.

Confidentiality Notice: All communications with this office are subject to attorney-client privilege and professional secrecy obligations under Portuguese and EU law. Information shared during initial consultations will not be disclosed to third parties.