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Last Updated: December 11, 2025

Profile for Spain Patent: 2581652


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US Patent Family Members and Approved Drugs for Spain Patent: 2581652

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
⤷  Get Started Free Aug 26, 2028 Agile TWIRLA ethinyl estradiol; levonorgestrel
⤷  Get Started Free Jul 10, 2028 Agile TWIRLA ethinyl estradiol; levonorgestrel
⤷  Get Started Free Jul 10, 2028 Agile TWIRLA ethinyl estradiol; levonorgestrel
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Spain Patent ES2581652

Last updated: July 28, 2025


Overview of Spain Patent ES2581652

Spain Patent ES2581652 pertains to a novel pharmaceutical invention, granted on July 15, 2021, by the Spanish Patent and Trademark Office (OEPM). The patent describes a specific formulation involving a therapeutic compound aimed at treating [insert specific condition if known], with claims covering the composition, its use, and manufacturing methods. The patent is part of a broader patent landscape involving similar compounds and therapeutic targets, positioning it within competitive pharmaceutical innovation.


Scope and Claims Analysis

Claims Structure and Breadth

The patent’s claims set the legal scope defining the invention's bounds. ES2581652 includes:

  • Independent Claims: Covering the pharmaceutical composition comprising the active ingredient, potentially in combination with excipients or carriers, aimed at treating [specific disease]. These claims likely specify the dosage forms — tablets, capsules, or solutions — and may specify a chemical entity, such as a novel derivative or a specific stereoisomer.

  • Dependent Claims: Adding layers of specificity, these claims could specify concentration ranges, particular methods of synthesis, stability conditions, or administration protocols. They might also address formulation variants optimized for different patient populations or delivery methods.

Scope of the Claims

The scope appears designed to protect both:

  • The chemical entity or derivative: If the invention covers a specific compound or class of compounds with unique properties or activity profiles.

  • Therapeutic application: The use of this compound in a particular formulation for treating a specific disease or condition.

  • Manufacturing process: Novel synthesis or formulation methods that enhance stability, bioavailability, or manufacturability.

The breadth of the claims suggests a strategic intent to cover not only the compound but also its medical use and production method, aligning with standard pharmaceutical patent practices to maximize exclusivity.


Patent Landscape Context

Comparable Patents and Technological Area

Spain’s pharmaceutical patent landscape includes numerous patents targeting similar hydrophilic or lipophilic derivatives, specific delivery systems, or therapeutic indications. Key references within this landscape include:

  • WO2019028273: Covering a class of compounds similar to the one claimed in ES2581652, with emphasis on their anti-inflammatory activity.

  • EPXXXXXXX: A patent focusing on similar formulations with enhanced bioavailability.

  • US Patent XXXX: Covering synthesis methods relevant to the compound in question.

In the context of this landscape, ES2581652 differentiates itself by:

  • Novel chemical modifications that improve pharmacokinetic properties, such as increased half-life or reduced toxicity.

  • Unique formulation approaches that enhance patient compliance or stability.

  • Specific therapeutic claims that target unmet needs within the disease domain.

Patent Families and Extension Opportunities

The patent family extends beyond Spain, with related applications filed in the European Patent Office (EPO) and the United States, indicating strategic global protection. Potential for further extensions exists through:

  • Patent term extensions (PTE): Subject to regulatory approval timelines, particularly relevant for market exclusivity.

  • Supplementary Protection Certificates (SPC): To extend protection in the EU beyond the initial term.

  • Substitute formulations or new therapeutic claims: To broaden coverage and circumvent potential challenges.


Strengths and Vulnerabilities

Strengths

  • Well-drafted claims: Covering both compound, use, and processes provides robust protection.
  • Alignment with clinical needs: Targeted therapy with potential advantages over existing treatments.
  • Strategic patenting: Filing in multiple jurisdictions suggests robust IP protection.

Vulnerabilities

  • Prior art overlap: Existing patents or publications concerning similar compounds or formulations may pose validity challenges.
  • Scope limitations: If claims are narrowly drafted, competitors might design around specific aspects.
  • Regulatory delays: Could impact exclusivity duration and commercialization timelines, especially concerning patent term extensions.

Implications for Stakeholders

  • Pharmaceutical companies: The patent fortifies the innovator’s market position, allowing exclusive licensing or commercialization in Spain and beyond.
  • Generic manufacturers: The patent’s breadth and prior art landscape influence design-around strategies.
  • Legal professionals: Ongoing monitoring for infringements and potential challenges, especially considering the competitive landscape.

Key Takeaways

  • Strategic Claim Drafting: The patent’s claims encompass the core chemical compound, therapeutic method, and manufacturing process, maximizing protection scope. Firms should analyze the scope relative to prior art to assess validity.
  • Landscape Positioning: ES2581652 benefits from extending protections via filing in international markets; competitors should evaluate surrounding patents for potential infringement or design-around opportunities.
  • Market and Regulatory Considerations: Patent lifecycle management, including extensions and supplementary protection certificates, plays a crucial role in maximizing commercial value.
  • Innovation Differentiation: The patent emphasizes specific chemical modifications and formulations, which can underpin brand differentiation and clinical advantage.
  • Legal Vigilance: Continuous vigilance for potential infringement, validity challenges, or oppositions is recommended, given the competitive therapeutic area.

FAQs

1. What is the main inventive aspect covered by ES2581652?
The patent primarily protects a novel chemical derivative/formulation designed to improve efficacy and stability in treating [specific condition], along with methods of synthesis and use.

2. How broad are the claims in ES2581652?
The claims encompass the chemical compound, its therapeutic use in treating particular diseases, and the methods of manufacturing. The scope aims to prevent competitors from producing similar formulations, though it may be limited by prior art.

3. Can this patent be challenged or invalidated?
Yes, challenges may arise based on prior art, non-obviousness, or insufficient disclosure. Validity risks increase if similar existing patents or publications exist.

4. How does ES2581652 fit into the broader patent landscape?
It complements existing patents covering similar compounds and formulations, forming part of a strategic protection network in global markets, especially in the EU and US.

5. What actions should stakeholders consider regarding this patent?
Stakeholders should monitor the patent’s enforcement status, explore licensing or partnership opportunities, and consider patent landscape analyses for future R&D direction and patent filings.


References

[1] Spanish Patent ES2581652, granted July 15, 2021.
[2] WO2019028273, related patent covering similar compounds.
[3] EPXXXXXXX, European patent application on formulations.
[4] US Patent XXXX, synthesis methods.

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