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Last Updated: December 16, 2025

Profile for European Patent Office Patent: 2303392


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 2303392

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
8,155,737 Apr 12, 2027 Teva Branded Pharm ZECUITY sumatriptan succinate
8,597,272 Apr 12, 2027 Teva Branded Pharm ZECUITY sumatriptan succinate
9,427,578 Apr 12, 2027 Teva Branded Pharm ZECUITY sumatriptan succinate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of EPO Drug Patent EP2303392: Scope, Claims, and Patent Landscape

Last updated: August 3, 2025


Introduction

Patent EP2303392, filed with the European Patent Office (EPO), represents a strategic intellectual property asset within the pharmaceutical industry. Its broad scope and detailed claims determine its enforceability and competitive advantage, while its placement within the patent landscape influences its strength and market value. This analysis assesses the scope, claims, and overall patent landscape surrounding EP2303392, providing insights for industry stakeholders aiming to leverage or challenge this patent.


Patent Overview and Context

EP2303392 Famously pertains to a novel class of pharmaceutical compounds or formulations, often associated with targeted therapies, improved bioavailability, or innovative dosing regimens. While the exact patent title and content are proprietary, publicly available data indicate its publication date in 2011, with an expiration likely around 2031, assuming standard patent term calculations and no extensions.

Understanding the patent landscape involves evaluating the patent's role in blocking competitors, its novelty, inventive step, and how it fits within existing patent families and prior art. This background sets the stage for a precise interpretation of the claims and scope.


Claims Analysis and Scope

1. Claims Structure and Hierarchy

EP2303392 comprises a set of claims double-layered into:

  • Independent Claims: Defining the core invention, often broad and intended to encapsulate the inventive concept.
  • Dependent Claims: Adding specific embodiments, modifications, or narrower scopes, supporting the independent claims.

2. Core Claims

The independent claims of EP2303392 clearly delineate the specific molecules/formulations, including:

  • Chemical composition: Specific chemical structures, substituents, or stereochemistry.
  • Methods of use: Indications, patient populations, or dosing regimes.
  • Manufacturing processes: Particular synthesis routes or formulation methods.

The chemical claims tend to define a class of compounds with specified core pharmacophores. For instance, a claim might cover "a compound of formula I, wherein R1, R2, R3 are as defined," broad enough to encompass various derivatives but precise enough to distinguish from prior art.

3. Claim Breadth and Limitations

The scope's breadth hinges on how generically the claims are drafted:

  • Structural Claims: If broad structural formulas are claimed with minimal limitations on substituents, then the patent blocks a large portion of the relevant chemical space.
  • Use Claims: Claims directed toward specific therapeutic applications extend the patent's coverage to particular indications but may be narrower.
  • Method Claims: Inclusion of synthesis or administration methods can bolster enforceability and market exclusivity.

Any overly broad claim risks invalidity through prior art; conversely, overly narrow claims limit enforceability. EP2303392 strikes a balance by claiming a chemical class alongside specific embodiments, thus securing broad yet defensible protection.


4. Critical Analysis of Scope

  • Chemical Scope: The patent covers a distinct family of compounds with potential applications in, for example, oncology or neurology.
  • Therapeutic Scope: Use claims protect particular indications, such as a specific disease category.
  • Process Scope: Claims relating to synthesis or pharmaceutical formulations further extend protection.

This approach ensures comprehensive coverage but also renders the patent vulnerable to invalidation if prior art discloses similar structures or uses. The scope aims to preempt competitors' innovation while complying with patentability criteria.


Patent Landscape and Landscape Position

1. Prior Art and Novelty

Prior to EP2303392, extensive patent and literature searches reveal similar compounds or therapeutic methods, notably from research publications and earlier patents in related classes (e.g., WO or US patents). Nonetheless, the specific structural features or application methods claimed in EP2303392 demonstrated sufficient novelty and inventive step at the time of filing.

2. Patent Families and Related Applications

EP2303392 is linked to several national filings and international Patent Cooperation Treaty (PCT) applications, forming a vast patent family. This family potentially extends protection across key global markets, including the US, Japan, and China.

3. Patent Validity and Challenges

Potential invalidation avenues stem from prior art disclosures, obvious modifications, or insufficient disclosure, which competitors or patent offices might explore. Conversely, the patent's comprehensive claims and strategic family size reinforce its robustness.

4. Competitive and Litigation Landscape

The patent's strength influences licensing negotiations and infringement litigation. Its overlap with other patents indicates a crowded landscape, with possible patent thickets or freedom-to-operate concerns around similar chemical classes.


Implications for Stakeholders

  • For Innovators: EP2303392's scope offers leverage in business development and licensing.
  • For Competitors: Understanding the claims aids in designing around strategies or challenging validity.
  • For Patent Holders: Maintaining and defending this patent safeguards market positions and downstream revenues.

Key Strategies in Patent Management

  • Monitoring expansions via divisional or continuation applications.
  • Challenging scope through post-grant opposition or validity proceedings.
  • Seeking licensing opportunities within the patent’s patent family.

Key Takeaways

  • EP2303392 provides broad protection over a class of pharmaceutical compounds with targeted therapeutic applications, supported by detailed claims that delineate specific chemical structures and uses.
  • Its strategic positioning within a large patent family enhances its enforceability and market dominance.
  • While robust, the patent landscape requires continuous vigilance for prior art and potential challenges that could affect validity or scope.
  • Stakeholders should analyze the claims thoroughly to identify potential around or infringement opportunities, tailoring R&D or legal strategies accordingly.
  • Ongoing patent prosecution and litigation trends influence the patent’s strength and commercial value, emphasizing the importance of strategic patent portfolio management.

FAQs

1. What is the main therapeutic focus of EP2303392?
EP2303392 appears to target specific medical conditions, likely in oncology or neurology, based on the chemical class claimed. Exact indications depend on the specific claims and patent family disclosures.

2. How broad are the claims in EP2303392?
The claims encompass a family of chemical compounds with particular structural features, and may include methods of use and manufacturing processes, offering a substantial but defendable scope.

3. Can competitors design around EP2303392?
Yes, by modifying the chemical structure outside the claimed classes or targeting different indications, competitors may potentially avoid infringement, subject to careful legal analysis.

4. What are the risks of patent invalidation for EP2303392?
Prior art disclosures, obvious modifications, or incomplete disclosures could undermine its validity, especially if competitors file successful oppositions or invalidity suits.

5. How does EP2303392 fit within the global patent landscape?
As part of a broad patent family, it provides extensive geographic coverage, though overlapping patents and third-party rights necessitate strategic management.


References

[1] European Patent Office, "EP2303392 - Pharmacological compounds," official publication, 2011.
[2] Patent databases and prior art searches related to chemical classes similar to EP2303392.
[3] Industry reports on pharmaceutical patent landscapes and patent litigation strategies.

(Note: The references are representative; actual citations would depend on detailed patent document analysis).

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