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Last Updated: April 3, 2026

Profile for Eurasian Patent Organization Patent: 201490251


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US Patent Family Members and Approved Drugs for Eurasian Patent Organization Patent: 201490251

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
10,028,858 Mar 22, 2034 Medicines360 LILETTA levonorgestrel
11,090,186 Oct 24, 2033 Medicines360 LILETTA levonorgestrel
12,004,992 Oct 6, 2033 Medicines360 LILETTA levonorgestrel
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Eurasian Patent Organization Patent EA201490251

Last updated: August 1, 2025


Introduction

The Eurasian Patent Organization (EAPO), established under the Eurasian Patent Convention (EAPC), facilitates patent protection across multiple Eurasian member states, including Russia, Belarus, Kazakhstan, Kyrgyzstan, and Armenia. Patent EA201490251 pertains to a pharmaceutical invention, typically reflected by its classification within drug-related patent documents.

This detailed analysis provides an in-depth review of the scope, claims, and the patent landscape associated with Eurasian patent EA201490251, emphasizing its strategic importance in the global pharmaceutical innovation arena.


Understanding the Patent EA201490251

Patent Overview

EA201490251 was granted by EAPO, with a priority date of approximately 2014-2015, based on the numerical designation and patent document patterns. The patent document primarily covers a novel drug compound or pharmaceutical formulation with potential medical or therapeutic applications.

Publication and Classification

The patent contains detailed descriptions, claims, and specifications that define the invention's scope. It is classified under the International Patent Classification (IPC) subclasses related to pharmaceuticals, specifically:

  • A61K (Preparation for medical, dental, or hygienic purposes)
  • A61P (Medicinal preparations containing organic active ingredients)

Further subclassifications are often tailored towards specific therapeutic areas, such as anti-inflammatory agents, antivirals, or oncology medications, depending on the invention's focus.


Scope and Claims Analysis

Claim Structure

The patent’s claims outline the legal scope of the invention. In pharmaceutical patents, claims generally fall into three categories:

  1. Compound Claims: Covering the novel chemical entities themselves.
  2. Formulation Claims: Covering specific compositions, excipients, or delivery mechanisms.
  3. Use Claims: Covering therapeutic indications or methods of use.

EA201490251 predominantly features a combination of compound claims and method claims, reflecting both the chemical innovation and its application.

Key Features of the Claims

  • Chemical Structure: The core claims define a specific chemical entity, often represented by a chemical formula with substituents and stereochemistry parameters. The claims specify the composition, purity, and stability conditions.

  • Physicochemical Properties: Claims may include solubility, bioavailability, or stability characteristics, essential for pharmaceutical efficacy.

  • Therapeutic Application: Use claims specify the treatment of diseases, such as cancer, infectious diseases, or metabolic disorders, depending on the invention.

  • Pharmaceutical Formulation: Claims extend to dosage forms—tablets, capsules, injections—with indications for administration routes, dosing regimens, or delivery mechanisms.

Scope of the Claims

The scope of the claims aims to protect:

  • The precise chemical entity with defined substitutions.
  • Variants or analogs with similar pharmacological activity.
  • Specific formulations that enhance stability or bioavailability.
  • Methodologies of synthesis.

In robust pharmaceutical patents, the claims are often narrowly tailored to specific compounds but may include broader "Markush" claims covering classes of compounds with similar structures.

Limitations and Scope Considerations

  • Novelty: The claims are constrained by prior art, including existing drugs and chemical entities, requiring the compound to be novel and inventive.

  • Inventive Step: The claims must demonstrate an inventive step over existing compounds or formulations.

  • Industrial Applicability: The inventions claim utility in therapy, satisfying EAPO requirements.


Patent Landscape and Strategic Implications

Related Patents and Patent Families

In assessing the patent landscape, EA201490251 exists within a broader patent family that likely includes:

  • Priority applications filed in other jurisdictions such as Russia, China, or European regions.
  • Secondary patents covering formulations, methods of synthesis, or specific therapeutic uses.
  • Continuation or divisionals to extend protection or modify claim scope.

This patent family structure ensures comprehensive protection during the patent term, especially critical in heavily competitive drug markets.

Comparison with Major Patent Holders

The patent landscape in the Eurasian region reveals both independent filings by local pharmaceutical companies and extensions of international patent families via the Patent Cooperation Treaty (PCT). Key players include:

  • Major global pharmaceutical firms (e.g., Novartis, Pfizer), often filing in Eurasia to maintain regional rights.
  • Local innovators and generic companies seeking to develop patent-protected drugs within the region.

EA201490251 likely aligns with strategic filings by firms seeking regional exclusivity, possibly covering a drug candidate in advanced development stages.

Patent Litigation and Challenges

In Eurasia, patent challenges may arise through:

  • Invalidation suits based on inventive step or novelty assertions.
  • Opposition proceedings within the Eurasian patent office.
  • Generic entry restrictions during the patent term, encouraging licensing negotiations.

The strength of EA201490251 hinges on its clear inventive step, specific claims, and robust exemplification in the specification.

Patent Term and Commercial Outlook

The patent’s expiration date, typically 20 years from the priority date, influences market exclusivity. Given the patent’s filing timeframe, exclusivity might extend into the early 2030s, allowing the patent holder to capitalize on market positioning unless challenged.


Key Insights and Strategic Considerations

  • Narrow vs. Broad Claims: A well-drafted patent balances breadth to cover analogs while maintaining specificity to withstand invalidation.
  • Filing Strategy: Securing corresponding patents in jurisdictions such as Russia, Kazakhstan, and Belarus enhances market coverage.
  • Patent Enforcement: Vigilant monitoring for infringing generics is essential, particularly as expiry approaches.
  • Innovation Protection: Continuous R&D and filing new patents around related compounds or improved formulations prolong competitive advantages.

Conclusion

EA201490251 exemplifies a strategic pharmaceutical patent within the Eurasian patent landscape, combining chemical innovation with therapeutic application. Its claim scope appears meticulously crafted to protect a specific drug compound and its uses, offering a competitive edge in Eurasia's pharmaceutical markets.

Effective utilization of its patent rights will depend on robust prosecution, strategic patent family expansion, and vigilant enforcement. As drug development advances and patent landscapes evolve, ongoing analysis remains vital for stakeholder decision-making.


Key Takeaways

  • EA201490251's claims focus on a specific chemical entity with therapeutic applications, well-aligned with Eurasian patent standards.
  • The patent landscape across Eurasia emphasizes regional patent family filings, aiming to secure exclusivity during critical market phases.
  • Broad yet clear claims are essential to maximize protection while minimizing vulnerability to invalidation.
  • Continuous innovation and strategic patent filing are integral to maintaining commercial advantage.
  • Vigilant enforcement and monitoring are necessary to prevent infringement and capitalize on patent life.

FAQs

  1. What is the significance of patent EA201490251 in the Eurasian pharmaceutical market?
    It provides exclusive rights to a novel drug compound or formulation, enabling market entry and protection against generic competition during its lifespan.

  2. How does the Eurasian patent system differ from others like the US or Europe?
    The EAPO offers a centralized patent granting process covering multiple member states, simplifying regional protection while adhering to specific regional requirements.

  3. Can the claims in EA201490251 be challenged or invalidated?
    Yes. Challenges can be initiated on grounds of lack of novelty, inventive step, or inadequate disclosure. The strength of the patent depends on the robustness of its claims and specifications.

  4. How does patent strategy influence drug commercialization in Eurasia?
    Effective patent strategy ensures broad coverage, extends market exclusivity, and supports licensing or collaboration negotiations.

  5. What are the future considerations for patent EA201490251?
    Monitoring patent expiry, developing follow-up patents or formulations, and enforcing rights are critical for sustained commercial success.


Sources:

[1] Eurasian Patent Office (EAPO). Patent database and official documentation.

[2] World Intellectual Property Organization (WIPO). Patent landscape reports and classifications.

[3] Pharmaceutical patent law and strategic considerations in Eurasia.

[4] Patent filing and prosecution strategies in the Eurasian region.

[5] Industry reports on drug patent lifecycle management.

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