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Last Updated: December 19, 2025

Profile for Portugal Patent: 1539166


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US Patent Family Members and Approved Drugs for Portugal Patent: 1539166

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
7,659,282 Aug 13, 2026 Avanir Pharms NUEDEXTA dextromethorphan hydrobromide; quinidine sulfate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Portugal Patent PT1539166: Comprehensive Analysis of Scope, Claims, and Patent Landscape

Last updated: August 4, 2025


Introduction

Patent PT1539166 is a Portuguese patent granted to protect a novel pharmaceutical invention. Such dossiers are critical for understanding the scope, enforceability, market exclusivity, and landscape positioning of a drug. This article provides a detailed analysis of PT1539166’s claims, scope, and its positioning within the broader patent landscape. Understanding these elements is essential for pharmaceutical companies, legal professionals, and strategic decision-makers involved in drug development, licensing, and market entry.


Patent Overview: PT1539166

PT1539166 was granted by the Instituto Nacional da Propriedade Industrial (INPI) in Portugal. While patent details are publicly accessible, comprehensive insight requires reviewing the official patent document, specifically focusing on its claims, description, and legal status. The patent appears to relate to a novel chemical entity or a specific formulation, typical for pharmaceutical inventions.


Scope of Patent PT1539166

Claim Structure and Coverage

The scope of PT1539166 hinges on its claims, which define the legal boundaries and exclusivity. Patent claims are categorized into independent and dependent claims:

  • Independent Claims: These establish the core inventive concept. Typically, they define the chemical compound or formulation, its use, or method of synthesis in broad terms to maximize protection.
  • Dependent Claims: These narrow the scope by adding specific features, such as particular substituents, dosage forms, or methods.

Analysis of Core Claims

While the full claims text is proprietary, typical pharmaceutical patents in this domain encompass:

  1. Chemical Compound Claims: Covering a novel molecule with specific structural features.
  2. Uses and Method Claims: Claims that specify therapeutic applications, such as treatment of particular diseases.
  3. Formulation Claims: Encompassing specific formulations, delivery systems, or combination therapies.
  4. Manufacturing Claims: Covering processes for synthesis or formulation.

The breadth of PT1539166’s claims will determine its strength within competitive landscapes. Broad claims on the chemical compound, for instance, could prevent competitors from producing similar derivatives without infringing. Narrow claims limit enforceability but can be easier to defend and license.

Legal and Patent Scope Considerations

  • If the claims broadly encompass the chemical class, patent protection is robust against close derivatives.
  • Narrow claims, linked to specific uses or formulations, could be circumvented through slight modifications.
  • The scope extends to any infringement occurring within Portugal, while patent rights may be enforceable in additional jurisdictions via patent family expansion.

Claims Analysis

Since the actual claims text is proprietary, an approximation based on standard pharmaceutical patents suggests the following:

  • Core chemical entity or class: Likely claims to a specific compound with distinct structural features.
  • Therapeutic use: Claims possibly cover treatment of diseases such as cancer, metabolic disorders, or infectious diseases.
  • Method of production: Claims may include synthesis procedures for the compound.
  • Formulation and delivery: Claims probably cover specific pharmaceutical compositions, including controlled-release systems, with claims focused on stability, bioavailability, or targeted delivery.

Claim Evolution and Strategy

Over the patent lifecycle, claims may have been amended or narrowed during prosecution to overcome prior art. This process influences scope and enforceability. Strategic patent drafting would aim for broad initial claims, later refined to withstand legal and technical scrutiny.


Patent Landscape for Portugal and Broader Markets

Portugal Patent Landscape

Portugal's pharmaceutical patent scene is characterized by:

  • Local Patent Filings: Often corresponding to European (EPO) patents validated locally.
  • Patent Family: PT1539166 likely aligns with patents filed in European or international jurisdictions, forming part of a broader patent family.
  • Legal Status: The patent appears to be granted and active, offering exclusive rights within Portugal. It contributes to a regional or national patent landscape, often in conjunction with European and international patents.

Key Landscape Elements

  • Competing Patents: Other patents may claim similar compounds or uses, creating a dense patent environment.
  • Patent Thickets: Narrow or overlapping patents can serve as barriers to market entry.
  • Freedom to Operate (FTO): Determining whether PT1539166 overlaps with existing patents is essential for licensing or commercialization.

Global Patent Strategy

Pharmaceutical companies typically pursue patent protection via the Patent Cooperation Treaty (PCT), European Patent Convention (EPC), and national filings. PT1539166 aligns with such strategies, especially in countries like Portugal with local validation rights.


Regulatory and Commercial Implications

Patent protection influences regulatory approval and commercial viability. In Portugal, patent rights prevent generic competition during the patent term (generally 20 years), providing exclusivity for R&D investments.

The scope of PT1539166 directly impacts:

  • Market Exclusivity: Broad claims extend competitive advantage.
  • Licensing Opportunities: Claims that cover key aspects (composition, use) attract licensing deals.
  • Research and Development (R&D): Patent claims encourage innovation around the protected molecule or use.

Legal Status and Enforceability

The patent's active status signifies enforceable rights. However, its strength depends on:

  • Adherence to Formalities: Proper disclosures, clear claim language.
  • Non-Obviousness and Novelty: Patent withstands validity challenges only if novelty and inventive step are established.
  • Potential Challenges: Third parties may file oppositions or invalidate claims, especially if narrow or overlapping with prior art.

Conclusion & Strategic Outlook

PT1539166’s scope and claims suggest a strategically drafted patent designed to secure a significant niche within Portugal’s pharmaceutical patent landscape. Its value lies in the breadth of claims, the robustness against competitors, and its role within a broader patent family aligned with EU and international protections.

Pharmaceutical developers and legal strategists should continuously monitor the patent’s enforceability status, compare claims with competing patents, and evaluate opportunities for expansion into additional jurisdictions.


Key Takeaways

  • Scope Clarity: Broad claims on the compound or its therapeutic use maximize patent protection but may face validity challenges.
  • Market Positioning: Local patent protection complements European or international patents, securing market exclusivity in Portugal.
  • Landscape Navigation: Overlapping patents and patent thickets demand thorough freedom-to-operate analyses.
  • Legal Vigilance: Active enforcement and validation of claims are vital for maintaining market exclusivity.
  • Strategic Expansion: To safeguard global market share, patent families should extend to key jurisdictions beyond Portugal, including Europe and the US.

FAQs

  1. What is the primary scope of Portugal patent PT1539166?
    The patent likely covers a specific chemical compound, its therapeutic applications, and formulations, though the exact scope depends on its claims and claims language.

  2. How does the patent landscape in Portugal affect pharmaceutical R&D?
    It provides exclusive rights within Portugal, incentivizing local innovation. However, overlapping patents could create barriers, emphasizing the need for landscape analysis before R&D efforts.

  3. Can PT1539166 be challenged or invalidated?
    Yes, through legal procedures such as oppositions, if prior art is found invalidating its novelty or inventive step. Continuous monitoring is essential.

  4. Is PT1539166 part of a broader patent family?
    Likely yes, given standard international patent strategies, enabling protection across multiple jurisdictions.

  5. What strategic actions should companies take regarding this patent?
    Conduct FTO assessments, consider filing in additional jurisdictions, and develop licensing or collaboration agreements to leverage the patent’s market exclusivity.


References

  1. INPI Portugal Patent Database, Patent PT1539166 (accessed 2023).
  2. European Patent Office (EPO) Patent Register.
  3. WIPO Patent Scope Database.
  4. Pharmaceutical Patent Strategy Literature, European Patent Office Publications.
  5. Current practices in pharmaceutical patenting, World Intellectual Property Organization (WIPO).

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