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Last Updated: December 15, 2025

Profile for Spain Patent: 2278925


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US Patent Family Members and Approved Drugs for Spain Patent: 2278925

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
7,732,430 Jan 15, 2028 Mayne Pharma NEXTSTELLIS drospirenone; estetrol
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of Patent ES2278925: Scope, Claims, and Patent Landscape

Last updated: July 29, 2025

Introduction

Patent ES2278925 pertains to a pharmaceutical invention filed and granted in Spain, which plays an integral role in the regional patent landscape, particularly within the European Union's intellectual property ecosystem. This analysis dissects the patent’s scope, claims, and its position in the broader patent landscape, providing insights for stakeholders such as pharmaceutical companies, patent practitioners, and innovation strategists.

Overview of Patent ES2278925

Patent ES2278925 was published on No specific publication date available. Though limited in publicly accessible details without the full patent document, the usual content of such patents includes specific chemical compounds, pharmaceutical formulations, or therapeutic methods. This analysis extrapolates from typical patent structures, aligning with European patent practices, drawing from general knowledge of drug patents in Spain, and referencing relevant existing patent literature and practices.

Scope of the Patent

Legal Scope & Territory

Upon grant, ES2278925 secures exclusive rights within Spain. Given Spain’s membership in the European Patent Convention (EPC), the patent can serve as a basis for subsequent patent family extensions and validations across EPC member states, subject to national validations and rule compliance.

Technical Scope

The scope largely depends on:

  • Claim Language: Defines the legal protection, asserting exclusivity over specific chemical entities, compositions, or therapeutic methods.
  • Description & Examples: Support the claims, demonstrating utility and embodiments.

Without the exact claims text, a typical scope analysis for a drug patent includes:

  • Chemical Composition Claims: Covering specific molecular entities or derivatives designed for particular therapeutic effects.
  • Formulation Claims: Encompassing specific pharmaceutical compositions or delivery systems.
  • Method of Use Claims: Protecting therapeutic methods involving the drug.

The scope remains bounded by the language’s breadth and novelty over prior art.

Claim Types and Their Implications

  • Independent Claims: Likely focus on core chemical entities or therapeutic methods.
  • Dependent Claims: Specify particular embodiments, formulations, or variations, narrowing protection but enhancing enforceability.

The strategic importance of well-crafted claims is critical, balancing broad protection with clarity and defensibility.

Claims Analysis

Given typical patent drafting practices, the claims of ES2278925 would likely include:

Chemical Compound Claims

Claims protecting a novel compound with specific substituents or structural features, possibly indicated by chemical formulas or Markush structures, aimed at novel pharmaceutical activity.

Pharmaceutical Composition Claims

These typically cover formulations comprising the compound, potentially including excipients, carriers, or delivery systems to optimize bioavailability or stability.

Method-of-Use Claims

Inserting claims for therapeutic applications, such as treatment of a specific disease—e.g., cancer, autoimmune disorder, or infectious disease—are common in drug patents.

Broader vs. Narrow Claims

  • Broad Claims: Cover a wide class of compounds or uses but are more vulnerable to invalidation if prior art exists.
  • Narrow Claims: Focused on specific compounds or methods, offering stronger defensibility but less market coverage.

Claim Strategies and Patent Quality

Effective claims balance broad technical scope with precise language. Overly broad claims may be challenged or invalidated, while narrow claims limit commercialization options.

Patent Landscape Context in Spain and Europe

Regional Patent Activity

Spain’s pharmaceutical patent landscape exhibits high activity, reflecting its significant biotech and pharma sector. Many patent filings are driven by multinational corporations and innovation-driven startups.

European Patent Family

Patent applicants seek protection in Spain often via European Patent Applications (EPC), which can extend the protection to other EPC member states. This strategy harmonizes scope, reduces costs, and facilitates regional enforcement.

Competitors and Prior Art

  • Prior Art Search: For chemically-related patents, earlier patents in the same class (e.g., class A61K or C07D in the CPC/ECLA systems) are crucial. For example, drugs targeting similar pathways like kinase inhibitors, monoclonal antibodies, or small molecules are prevalent.
  • Key Infringement Risks: From prior art or existing patents with overlapping claims, requiring careful claim drafting and freedom-to-operate analyses.

Litigation & Patent Validity Trends

Spain has a mature legal framework, with patent disputes often involving prior art challenges or validity revocations. The patent’s enforceability depends on robustness in prosecution and litigation defense.

Patent Strategy and Commercialization Implications

  • Patent Lifespan: With filing dates typically 20 years from priority, patent ES2278925 likely remains enforceable until approximately 2033, assuming standard timelines.
  • Market Exclusivity: Protects the drug against generic competition within Spain, impacting pricing and market share.
  • Research & Development: Solid patent coverage fosters licensing, partnerships, and incentivizes R&D investments in the region.

Conclusion

Patent ES2278925’s scope hinges on its claims’ language, likely encompassing specific chemical entities or therapeutic methods, with regional importance in Spain and potential family rights across Europe. The utility of the patent depends on the strategic claim drafting and alignment with existing patent landscapes, which influence its enforceability and commercial value.


Key Takeaways

  • Claim Precision Is Crucial: Well-drafted claims defining the core invention while avoiding ambiguity are essential for enforceability.
  • Regional and European Strategies Complement: Filing in Spain offers regional protection and can leverage broader European patent rights.
  • Patent Landscape Vigilance Is Necessary: Understanding prior art and potential infringement risks enhances patent robustness.
  • Lifecycle Management Matters: Ensuring all procedural deadlines, such as maintenance fees and claim adjustments, are met sustains patent validity.
  • Open Innovation and Licensing: The patent creates opportunities for licensing, partnerships, and collaboration within Spain and beyond.

FAQs

  1. What are the typical claim types in a pharmaceutical patent like ES2278925?
    Pharmaceutical patents generally include compound claims, formulation claims, and method-of-use claims, each serving to protect chemical entities, their compositions, and therapeutic methods respectively.

  2. How does Spain’s patent system influence drug patent protection?
    Spain adheres to the EPC, enabling regional protection through national patents and facilitating patent extensions across Europe, thus broadening a drug’s market exclusivity.

  3. Can ES2278925 be extended to other European countries?
    Yes, through the European patent process, applicants can validate and enforce the patent in multiple EPC member states, provided national validations are completed.

  4. What role does patent landscape analysis play for a drug patent?
    It identifies existing patents and prior art that could impact patent validity or infringement, guiding strategic decisions on filing, enforcement, and licensing.

  5. How do narrow vs. broad claims affect a drug patent’s value?
    Broad claims provide wider protection but risk invalidation; narrow claims are easier to defend but limit market scope. Optimal claim drafting balances both for maximum commercial benefit.


Sources

[1] European Patent Office. European Patent Manual of Patent Procedure.
[2] Spanish Patent and Trademark Office (OEPM). Patent Filing Procedures.
[3] WIPO. Patent Landscape Reports on Pharmaceuticals.
[4] European Patent Convention. EPC Rules and Guidelines.
[5] Patent Law and Practice in Spain. (Legal Texts and Commentary)

(Note: Actual claims and detailed patent disclosure specifics would require analyzing the published patent document itself, which may be accessed via official patent databases such as OEPM or EPO.)

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