Instituto Nacional da Propriedade Industrial (INPI) administers all national trademark registration procedures in Portugal, operating under the Industrial Property Code (Decree-Law No.110/2018). Unlike an EU trademark that covers all EU member states, Portuguese national trademark protection only applies within Portuguese territory, and it cannot be automatically converted into an EU trademark without re-filing or conversion procedures. For overseas enterprises entering the Portuguese market, national trademark registration is a targeted, cost-effective solution for brands whose business scope is limited to mainland Portugal, Madeira and the Azores.
A compulsory preliminary trademark search is strongly recommended before filing an application. INPI provides free online trademark database inquiry services. The search aims to identify identical or confusingly similar prior registered trademarks, pending applications and unregistered well-known trademarks. Many overseas applicants skip this step and directly submit applications, resulting in substantive examination rejection or successful oppositions filed by prior right holders. It should be noted that an informal search report only serves as risk reference and cannot guarantee registration approval, because INPI will conduct comprehensive official prior-right examination after formal application submission.
All foreign applicants without residence or registered office in Portugal must appoint a locally authorized industrial property representative. This procedural requirement is mandatory. Applications submitted directly by overseas entities without a designated Portuguese agent will be deemed formally defective and rejected by INPI. The authorized agent receives official notices, responds to office actions and participates in opposition procedures on behalf of the applicant. Power of Attorney does not require notarization or apostille under current INPI rules, which simplifies preparation procedures for international merchants.
Complete application documents include applicant identity information, clear trademark representation, goods and service lists classified under the Nice Agreement, and priority documents if applicable. Colour trademarks must explicitly claim designated colours; otherwise, protection will cover all colour variations of the sign. For sound marks, three-dimensional marks and position marks, applicants need to attach standardized descriptions and compliant graphic or audio files. Goods and services terms must adopt standardized wording of the Nice Classification. Ambiguous, broad descriptive terms may be required to be amended during formal examination.
The whole registration timeline generally ranges from 8 to 14 months, divided into sequential examination phases. First comes formal examination, where INPI inspects document completeness, fee payment and format compliance. If defects exist, applicants receive a one-month correction deadline. Failure to respond within the term leads to application withdrawal. After formal approval, the case enters substantive examination. Examiners review absolute grounds for refusal including lack of distinctiveness and violation of public policy, as well as relative grounds for conflict with earlier trademark rights.
When substantive examination passes, the trademark application is published in the Official Industrial Property Bulletin. A two-month opposition period starts from the publication date; interested parties can apply for a one-month extension under specific conditions. During opposition proceedings, INPI will notify the applicant and set a time limit for submitting defence arguments and supporting evidence. If opposition succeeds, the trademark application will be refused. If opposition is dismissed or no opposition is filed, INPI issues a notification allowing payment of registration fees. After fee settlement, the official trademark registration certificate is granted.
Once registered, the trademark obtains exclusive rights for 10 years calculated from the filing date. Owners can renew the trademark indefinitely. Renewal applications can be submitted within six months before expiry. A six-month post-expiry grace period is available, yet applicants must pay extra overdue surcharges. The biggest post-registration compliance risk is revocation due to non-use. Right holders must maintain genuine commercial use in Portugal within five consecutive years after registration. Purely symbolic display, product listing without actual sales cannot satisfy the genuine use standard.
Applicants need to distinguish three brand protection channels: Portuguese national trademark, EU trademark and Madrid international registration designating Portugal. Madrid international registration does not enjoy simpler examination procedures than direct national filing. When Madrid applications encounter objections, applicants must appoint a local Portuguese agent to respond, generating additional costs. For brands only trading in Portugal, direct national registration is usually more economical. For cross-Iberian or pan-European business layout, enterprises can combine national registration and EU trademark strategies.
Post-registration recordal procedures deserve sufficient attention. Any trademark assignment, exclusive or non-exclusive licensing must be recorded at INPI. Unrecorded transfer contracts cannot oppose third parties acting in good faith. Change of applicant name or address also requires official recordal. Without updating registration information, the owner may miss official notices such as non-use cancellation actions, leading to irreversible loss of trademark rights. In cross-border e-commerce practice, many Chinese brands neglect post-registration administration and lose trademark rights due to missed procedural deadlines.
In recent years, INPI has accelerated digital transformation. Online filing brings approximately 50% discount on official fees compared with traditional paper applications. All formal communications are prioritized via electronic notification. However, applicants should still reserve sufficient response time for office actions and opposition procedures. Reasonable pre-filing risk assessment, standardized goods description and continuous local commercial use are core factors to maintain stable trademark rights in Portugal.
