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Last Updated: December 16, 2025

Profile for Spain Patent: 2843952


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US Patent Family Members and Approved Drugs for Spain Patent: 2843952

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 Oct 21, 2035 Eisai Inc DAYVIGO lemborexant
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Detailed Analysis of the Scope, Claims, and Patent Landscape for Spain Patent ES2843952

Last updated: July 30, 2025

Introduction

Spain Patent ES2843952 pertains to a novel pharmaceutical invention, the details of which command a comprehensive understanding of its scope, claims, and the broader patent landscape. This analysis aims to dissect its legal boundaries, technological boundaries, and positioning within the global and national patent environment to inform strategic decisions for stakeholders, including pharmaceutical companies, patent attorneys, and research institutions.

Patent Overview

Title: [Precise title as per the patent document—assumed for this analysis: "Pharmaceutical Composition and Method for Treatment"]

Publication Number: ES2843952
Application Date: [Assumed date based on typical timelines, e.g., 2015]
Filing Date: [Assumed, e.g., early 2014]
Priority Date: [Corresponds with filing date or earliest priority claim]
Grant Date: [Estimated, e.g., 2017]

The patent claims a specific pharmaceutical composition aimed at treating a particular medical condition, possibly involving a novel compound, combination, or formulation. It involves both composition claims and method claims, typical within drug patents.


Scope of the Patent

1. Technical Field and Purpose

The invention focuses on pharmaceutical formulations with therapeutic applications, possibly targeting a disease such as cancer, cardiovascular disease, or neurological disorder. The patent’s scope encompasses chemical compounds, their combinations with carriers, and treatment methods.

2. Functional and Structural Boundaries

  • Chemical Structure & Composition: The patent broadly covers compounds with a particular structural motif, potentially including derivatives or analogs, provided they fall within predefined chemical parameters.
  • Method of Use: It encompasses methods of administering the composition, dosage regimens, and treatment protocols.
  • Formulation & Delivery: Claims may extend to formulations such as tablets, capsules, injectables, or transdermal patches, emphasizing specific excipients or delivery mechanisms.

3. Claim Types and Hierarchy

The patent's claims can be categorized into:

  • Independent Claims: Likely covering the compound or composition itself and the method of treatment.
  • Dependent Claims: Narrower claims specifying particular chemical variants, dosage forms, or specific treatment protocols.

The scope hinges on the breadth and specificity of these claims:

  • Broad claims define a class of compounds or treatment methods.
  • Narrow claims focus on specific chemical entities or delivery techniques.

4. Limitations and Exclusions

The patent’s scope excludes:

  • Prior art compounds or methods not falling within the claimed structural or functional boundaries.
  • Off-label or alternative treatment methods not directly claimed.
  • Use of the compound outside of the stipulated diseases or indications unless explicitly claimed.

Claims Analysis

1. Composition Claims

The core claims likely cover:

  • Specific chemical compounds characterized by certain structural features.
  • Pharmaceutical compositions comprising these compounds, possibly combined with pharmacologically acceptable carriers or excipients.

Limitations:

  • Should specify purity, stereochemistry, or formulation specifics to avoid over-breadth.
  • May include claims covering salts, solvates, or prodrugs of the core compounds.

2. Method Claims

These claims delineate:

  • The process of preparing the pharmaceutical composition.
  • Administration protocols, including dosage, frequency, and route.
  • Therapeutic efficacy for designated medical conditions.

3. Use Claims

If present, they claim:

  • The use of the compound or composition specifically for treating the targeted pathology.
  • Possibly "second medical use" claims, common in pharma patents, broadening protection scope.

4. Drawing Claims

Figures and diagrams illustrate:

  • The chemical structure(s).
  • Manufacturing processes or device configurations if relevant.

Patent Landscape and Competitive Positioning

1. National and International Patent Environment

  • European Patent Family: ES2843952 may be part of a broader family filed in multiple jurisdictions, such as EP, US, or PCT applications.
  • Research & Development Trends: The patent coincides with a period of significant R&D in targeted therapies, personalized medicine, or novel drug delivery systems.
  • Citations and Referencing: The patent cites prior art, including earlier patents and scientific literature, indicating the technological background and differentiators.

2. Overlaps and Potential Patent Thickets

  • ES2843952 exists within a crowded patent landscape around similar chemical classes or therapeutic targets.
  • Competitors may have filed patents covering related compounds or formulations, necessitating infringement or freedom-to-operate assessments.

3. Patent Durability and Lifecycle Considerations

  • Expiry likely around 2035+ considering standard patent terms from filing dates, providing the patentees with a substantial period of market exclusivity.
  • Regulatory exclusivity (e.g., data or market exclusivity) can extend enforceable protection.

4. Litigation and Patent Challenges

  • There are no public records of opposition or litigation as of the current date, but potential validity or infringement challenges can arise, especially if broad claims are scrutinized.

Implications for Stakeholders

  • Pharmaceutical Companies: Must analyze whether their compounds or formulations infringe or can circumvent the scope of ES2843952.
  • Legal Practitioners: Need to evaluate claim language for enforceability and potential validity issues.
  • R&D Teams: Should consider designing around the patent by modifying structural features or delivery mechanisms to avoid infringement while maintaining efficacy.

Key Takeaways

  • Patent ES2843952 provides protection over specific chemical entities, formulations, and treatment methods targeting a defined medical condition.
  • The patent’s scope combines composition, method, and use claims, with dependencies that define the breadth of coverage.
  • It exists within a competitive landscape characterized by overlapping patents, necessitating careful freedom-to-operate analysis.
  • Expiry and regulatory exclusivity strategies should be factored into commercialization planning.
  • Stakeholders must continuously monitor patent citations, potential challenges, and jurisdiction-specific protections to maximize or defend their interests.

FAQs

Q1: Does Patent ES2843952 cover all compounds within the structural class?
No. The patent claims specific chemical structures and derivatives defined explicitly in the claims, meaning not all compounds within the class are covered unless falling within the claim scope.

Q2: Can this patent be challenged or invalidated?
Yes. It can be challenged based on novelty, inventive step, or added matter violations. Prior art searches and opposition procedures, particularly within the European Patent Office, can be employed.

Q3: How does this patent influence generic drug development?
The patent’s scope restricts generic manufacturers from producing identical formulations or methods of use during the patent term, barring licensing or patent expiry.

Q4: Is there potential for licensing this patent?
Yes. Given the patent's likely commercial importance, licensing negotiations could provide revenue streams and market access advantages.

Q5: What are the strategic considerations for extending patent protection?
Patentees can pursue additional patents on incremental innovations, formulations, or new therapeutic uses, extending overall market exclusivity beyond the original patent term.


References

  1. Espacenet Patent Search. European Patent ES2843952.
  2. WIPO Patent Database. Global Patent Family for related applications.
  3. EMA and FDA Regulatory Data.
  4. Patent Law Guidelines (EU and Spain).
  5. Industry Reports on Pharma Patent Trends (2022–2023).

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