Prosecuting a patent application in Brazil follows a defined statutory sequence, with firm response deadlines at each stage. Understanding this sequence helps applicants and foreign associates plan responses, budget annuities and anticipate appeal windows.
From filing to examination
After filing — whether directly or through PCT national phase entry — a Brazilian patent application undergoes a formal review and is published, ordinarily 18 months from the earliest priority date, in the INPI’s official gazette (Revista da Propriedade Industrial, RPI).
Substantive examination only begins once the applicant or a third party files a request for examination, which must occur within 36 months of the filing date. Examination is then assigned according to the INPI’s technical area queues, and pendency varies significantly by field.
Office actions ("exigências")
During substantive examination, the examiner may raise objections related to novelty, inventive step, industrial application, sufficiency of disclosure, clarity, or unity of invention, among other requirements under the Industrial Property Law (Lei nº 9.279/1996). These objections are communicated through an office action, locally called "exigência".
The applicant has a statutory period to respond — typically 90 days from publication of the office action in the RPI — and failure to respond within this period results in definitive shelving of the application. Responses may include arguments, evidence, and claim amendments, provided amendments do not extend beyond the matter disclosed in the application as originally filed.
Responding effectively
A well-structured response addresses each objection individually, distinguishes the claimed subject matter from the cited prior art on technical grounds, and — where amendments are used — keeps claim language anchored to the original specification to avoid a fresh objection regarding added matter.
Where an office action raises issues already addressed during international search or by other patent offices examining a corresponding family member, referencing that prosecution history (search reports, allowed claim sets in comparable jurisdictions) can support the arguments presented to the Brazilian examiner, although each office reaches its own decision.
Decision, appeals and nullity
Examination concludes with either a grant or a rejection (definitive shelving or denial). A rejection can be challenged through an administrative appeal ("recurso") to the INPI within 60 days of the decision being published, which is reviewed by a different examination body within the institute.
If the administrative appeal is unsuccessful, or once a patent has been granted, interested parties retain the option of judicial review: third parties may file a nullity action against a granted patent, and applicants may, in limited circumstances, seek judicial review of a final administrative denial, both before the federal courts.
- Monitor the RPI for publication of office actions and decisions — deadlines run from publication, not from receipt of a private notice.
- Build response strategy around the original disclosure to avoid added-matter objections.
- Coordinate arguments with examination outcomes in other jurisdictions for the same family, where helpful.
- Plan for the administrative appeal deadline (60 days) immediately upon receiving an unfavorable decision.
Maintaining a granted patent: annuities
Granted Brazilian patents — and pending applications — are subject to annual maintenance fees ("anuidades"), due from the third year following the filing date (or international filing date, for PCT national phase applications) and payable annually thereafter for the life of the patent.
Annuities accrued during pendency become due, retroactively, within a defined window after grant. Late payment is possible within a grace period subject to a surcharge; failure to pay results in lapse of the patent. Tracking these dates is essential for portfolios with multiple Brazilian assets at different stages.
Examination timelines, fee amounts and procedural deadlines are subject to INPI rules in force at the relevant date and to the specifics of each application. This article is informational and does not constitute legal advice.