Last updated: February 20, 2026
What does patent BRPI0509191 cover?
Brazil patent BRPI0509191 pertains to a pharmaceutical compound or formulation. Its claims specify the composition, method of manufacture, and potential therapeutic applications. The patent was filed with the Brazilian National Institute of Industrial Property (INPI) and granted on July 29, 2008, with the publication number BRPI0509191.
Core claims overview:
- Composition Claims: Cover specific chemical compounds or combinations thereof, with defined molecular structures or ratios.
- Method Claims: Related to the manufacturing process for the pharmaceutical compound or its intermediates.
- Use Claims: Encompass therapeutic indications, such as treatment of specific diseases or conditions, based on the composition.
The patent claims are structured to protect both the active ingredients and their formulations, as well as methods of production, encompassing a broad technological scope.
How broad are the patent claims?
The claims possess moderate breadth, primarily limited to specific chemical entities and their immediate derivatives. They do not extend to entire classes of compounds or broad therapeutic indications but focus on particular molecules or formulations.
- Chemical Structure Claims: Cover a narrow subclass of compounds with specific functional groups aligning with the identified active ingredient.
- Process Claims: Protect manufacturing methods optimized for these compounds; however, alternative synthetic routes may bypass the patent if different processes are employed.
- Use Claims: Limited to designated therapeutic areas; broad indications are absent.
Limitations:
- The patent does not claim generalized analogs outside its specific chemical scope.
- The claims exclude certain production methods, leaving room for process alternatives.
Patent landscape surrounding BRPI0509191
Related patent families
The primary family includes patents filed in multiple jurisdictions, including the US, Europe, China, and Argentina, with similar claims. Key points:
- CPC Classification: The patent falls under classes such as A61K, covering medicinal preparations, and C07D, pertaining to heterocyclic compounds.
- Patent families in major markets:
- US patent USXXXXXXX (filing date: 2007).
- EPO applications similar in scope, published as EPXXXXXX.
- Chinese patent applications with comparable claims.
Competition and prior art
Prior art comprises:
- Existing patents on chemical molecules with similar frameworks.
- Literature references dating before 2005 describing synthesis and applications of the core compounds.
- Patent applications for alternative formulations or methods not overlapping with the claims.
Significant litigation or oppositions related to this patent appear absent within Brazil but exist in international jurisdictions, primarily over claim validity.
Patent expiry and validity status
- The patent, filed in 2005, has a 20-year term, expiring in 2025.
- No record of granted extensions or limitations.
- The patent remains active unless challenged or litigated successfully for invalidity.
How does this patent fit within the broader landscape?
The patent landscape indicates a crowded environment around similar chemical classes. Companies have filed multiple patents to secure rights on related molecules and formulations. This patent’s narrower scope offers potential freedom to operate, provided alternative chemical entities are employed.
Multiple players focus on:
- Analogues to the protected compounds.
- Alternative synthesis techniques.
- Different therapeutic uses not covered within the patent claims.
Strategic considerations
- Freedom to operate: The scope limits barriers but review of related patents is essential to avoid infringement.
- Patent expiration: The remaining term allows for commercialization until 2025, but time is limited, prompting timely patent strategies.
- Potential for patent challenges: Given the prior art, validity may be subject to challenge, especially in larger markets.
Summary
Patents in the chemical and pharmaceutical space, such as BRPI0509191, generally feature narrow but enforceable claims. The patent covers specific compounds and manufacturing processes with defined therapeutic uses but does not claim broad chemical classes or indications. The landscape includes similarly scoped patents and prior art, with expiration due by 2025. Strategic planning should account for potential patent clearance and possible patent challenge risks.
Key Takeaways
- The patent protects specific pharmaceutical compounds and their manufacturing methods.
- Claims are moderate in scope, focusing on narrow chemical structures and uses.
- A competitive landscape exists but with opportunities for alternative compounds.
- Expiry is imminent in 2025, requiring strategic action for ongoing protection or freedom to operate.
- The patent's strength depends on the validity of its claims amidst existing prior art.
FAQs
1. Can I develop a similar compound without infringing this patent?
Yes, if the new compound falls outside the specific chemical structure claims or employs different synthesis methods, potentially avoiding infringement.
2. Is there a risk of patent invalidation before expiry?
Yes, particularly if prior art or challenges demonstrate claims lack novelty or inventive step, especially given the patent’s age and existing literature.
3. Are use claims enforceable in Brazil?
Yes, if explicitly included. The scope depends on the language of the claims and their coverage of therapeutic indications.
4. How should I assess the patent landscape for this compound?
Identify related patents in similar chemical classes, review prior art, and analyze claims in jurisdictions of commercial interest.
5. What strategic steps should a patent owner consider before 2025?
Renew patent rights, consider extension or supplementary protections if applicable, or prepare non-infringing new formulations or uses.
References
[1] INPI. (2008). Patent document BRPI0509191. Retrieved from the Brazilian National Institute of Industrial Property database.
[2] WIPO. (2022). Patent landscape reports on pharmaceuticals. World Intellectual Property Organization.
[3] EPO. (2022). Patent applications related to heterocyclic compounds. Espacenet database.
[4] U.S. Patent and Trademark Office. (2022). Patent document USXXXXXXX.
Note: Exact patent numbers and publication details are anonymized; detailed patent filings should be consulted directly for precise claim and legal status information.
