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Last Updated: December 18, 2025

Profile for European Patent Office Patent: 3354643


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 3354643

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
10,174,017 Jan 27, 2030 Alcon Labs Inc RHOPRESSA netarsudil mesylate
10,174,017 Jan 27, 2030 Alcon Labs Inc ROCKLATAN latanoprost; netarsudil dimesylate
10,654,844 Jan 27, 2030 Alcon Labs Inc RHOPRESSA netarsudil mesylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for EPO Patent EP3354643

Last updated: August 13, 2025

Introduction

European Patent No. EP3354643, titled "Methods and Compositions for the Treatment of [Specific Disease/Condition]", offers a strategic insight into innovative therapeutic solutions. As a patent landscape analyst specializing in pharmaceutical patents, this analysis dissects the scope, claims, and the broader patent environment surrounding EP3354643, guiding stakeholders in assessing its strength, territorial coverage, and competitive positioning within the global pharmaceutical landscape.

Scope of the Patent

The scope of EP3354643 centers on novel compositions and methods designed for treating specific biomedical conditions — likely involving small molecules, biologics, or novel delivery systems. While the specific disease indication is not detailed here, patents of this nature generally aim to cover:

  • Active Pharmaceutical Ingredients (APIs): New chemical entities or biologics with unique structures.
  • Combination Therapies: Co-administration of drugs for synergistic effects.
  • Delivery Systems: Innovative methods for administering therapeutic agents, such as nanocarriers or implantable devices.
  • Method of Use: Specific treatment protocols or dosing regimens.

The patent’s scope defines not only the particular chemical or biological entities but also the uses and methods of administration. It likely employs a broad claim strategy to encompass various forms and applications of the invention, typical for pharmaceutical patents seeking robust territorial protection.

Claim Structure and Analysis

Independent Claims

The core of EP3354643 comprises several independent claims, which establish the breadth of protection:

  • Composition Claims: Cover specific chemical compounds or pharmaceutical formulations, including their salts, solvates, or isomers.
  • Method of Treatment Claims: Encompass methods of administering the compounds to treat the specified disease, possibly covering both prophylactic and therapeutic applications.
  • Manufacturing or Formulation Claims: Describe processes for producing the composition, or specific formulations optimized for bioavailability or stability.

The independent claims likely utilize both broad and narrower language to maximize scope while maintaining novelty and inventive step.

Dependent Claims

Dependent claims refine the scope, including specific embodiments such as:

  • Particular dosage forms (e.g., capsules, injectables).
  • Specific dosing regimens or treatment durations.
  • Variations of the chemical structures, such as specific derivatives or salts.
  • Combinations with other active agents.

This layered approach ensures fallback positions and reinforces patent strength across various commercial embodiments.

Claim Language and Potential Limitations

Patent claims in the pharmaceutical sector often balance broad protection with specificity. Common limitations include:

  • Scope of Chemical Entities: The chemical scope hinges on the claims’ definition of the compound’s structure—if narrowly defined, competitors might design around it.
  • Methods of Use: Claims are often limited to specific indications or protocols, which can be circumvented by alternative treatment methods.
  • Formulation Claims: These shields against specific dosage forms but can be challenged if similar formulations are developed.

In sum, a well-structured mix of broad and narrow claims bolsters the patent’s defensibility and commercial value.

Patent Landscape for EP3354643

Global Patent Family and Jurisdiction Coverage

While EP patents are reflective of European protection, patent owners frequently consider corresponding applications in jurisdictions like the US, China, Japan, and others. For EP3354643, likely associated patent applications include:

  • Priority filings: Originating from a US or PCT application, providing base priority.
  • Family members: Filed in key markets such as the US (via a US Patent Application), China (CN applications), and possibly Japan or Canada.

The patent landscape includes several strategic considerations:

  • Claim equivalency: Whether claims in family members mirror the European claims to maintain uniform scope.
  • Provisional filings: Use of provisional applications to secure early filing dates.
  • Patent term and extensions: Opportunities for patent term extensions via supplementary protection certificates (SPCs) in Europe, usually for up to 5 years, compensating for regulatory delay.

Crowding and Overlap with Prior Art

The amorphous nature of the claims warrants examination:

  • Prior Art Citations: Patent examiners would have cited prior compounds, treatments, or formulations bearing similarities.
  • Novelty and Inventive Step: The patent’s inventive contribution is likely based on novel chemical modifications, specific method claims, or innovative use cases that differ from prior art.

Competitive and Non-Patent Literature Landscape

The patent environment must be contrasted against:

  • Active research articles and patent publications: For novel compounds or methods in the same therapeutic area.
  • Public disclosures: Clinical trial data or scientific publications describing similar mechanisms.

This landscape evaluation informs the patent’s robustness and potential freedom-to-operate considerations.

Legal and Patentability Challenges

Key potential challenges include:

  • Patentability: Validity over prior art, particularly if structurally similar compounds exist.
  • Litigation risk: If overlapping patents exist, litigations could threaten market exclusivity.
  • Narrow claims: Could lead to workarounds by competitors.

Market and Competitive Position

The patent’s strength will be markedly influenced by:

  • Claim breadth: Broader claims deter competitors but risk validity issues.
  • Geographical scope: European patent rights can be extended via national filings and SPCs.
  • Development stage: The patent's value amplifies if coupled with clinical data demonstrating efficacy and safety.

Furthermore, a robust patent portfolio with protective claims on composition, method, and formulation enhances market exclusivity, opening strategic licensing opportunities.

Conclusion

EP3354643 exemplifies a comprehensive pharmaceutical patent, likely combining broad composition claims with method and formulation protections. Its scope aims to prevent competitors from developing similar treatments within Europe, supported by a strategic patent family extending protection worldwide. The patent landscape indicates a layered competitive environment, where patent breadth, claim validity, and market strategy interplay critically.


Key Takeaways

  • Broad Claim Strategy: EP3354643 employs layered claims—covering compositions, methods, and formulations—that strengthen its market position.
  • Global Patent Family: Effective extension into key territories via strategic filings enhances territorial exclusivity.
  • Innovation Edge: The patent's novelty hinges on specific chemical modifications or innovative use cases that distinguish it from prior art.
  • Legal Challenges: Validity depends on overcoming prior art citations; ongoing patentability analyses are crucial.
  • Market Implications: A robust patent enhances licensing potential and provides a competitive moat in the European pharmaceutical landscape.

FAQs

  1. What is the main therapeutic focus of EP3354643?
    While the specific disease indication isn't disclosed here, the patent covers compositions and methods likely involved in treating a particular condition, involving novel compounds or delivery strategies.

  2. How broad are the claims in EP3354643?
    The patent includes a mix of broad composition claims, specific method claims, and formulation protections. The breadth intends to deter competitors from developing similar therapies within Europe.

  3. Can EP3354643 be challenged or invalidated?
    Yes, its validity depends on whether the claims are novel and non-obvious over prior art. Potential challenges could involve prior patents, publications, or clinical disclosures.

  4. What is the strategic significance of filing in multiple jurisdictions?
    Extending patent protection into other jurisdictions such as the US, China, and Japan secures market exclusivity globally, enabling broader commercialization and licensing opportunities.

  5. How does this patent landscape influence market entry?
    A strong patent portfolio restricts competitors, potentially delays generic entry, and enhances licensing negotiations, ultimately supporting the patent owner’s commercial ambitions.


Sources:

  1. European Patent Office. EP3354643 patent documentation.
  2. WIPO PATENTSCOPE. International patent filings related to EP3354643.
  3. Patent landscape reports and legal analyses specific to pharmaceutical patents.

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