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Last Updated: December 15, 2025

Profile for World Intellectual Property Organization (WIPO) Patent: 2012039371


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US Patent Family Members and Approved Drugs for World Intellectual Property Organization (WIPO) Patent: 2012039371

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
8,268,848 Sep 20, 2031 Eisai Inc DAYVIGO lemborexant
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for WIPO Patent WO2012039371

Last updated: August 10, 2025

Introduction

The World Intellectual Property Organization (WIPO) patent WO2012039371 pertains to a novel pharmaceutical invention, with its scope and patent claims playing a vital role in defining the intellectual property rights conferred. This analysis explores the patent’s scope, claims, and its position within the broader patent landscape, providing critical insights for stakeholders involved in drug development, licensing, and patent strategy.


Overview of Patent WO2012039371

WO2012039371 is a published international patent application under the Patent Cooperation Treaty (PCT), filed by a designated applicant (specific details depend on the applicant’s identity, which is typically disclosed in the patent document). Its content suggests the invention relates to a pharmaceutical compound, formulation, or method with particular therapeutic utility.

The patent’s primary focus appears to center on a novel chemical entity or a specific class of compounds, potentially including their use, formulation, or method of synthesis. As with most WIPO applications, it aims to establish a broad scope, protecting not only the compound itself but also its various uses and formulations.


Scope of the Patent

Broadness and Strategic Position

The scope of WO2012039371 is determined largely by its claims, which ideally define the boundaries of patent protection. Patents issued through the PCT system typically aim for broad claims to maximize territorial coverage and safeguard inventive core aspects.

Based on the typical architecture of such patents, the scope likely includes:

  • Chemical compounds or derivatives with specific structural features linked to a therapeutic indication.
  • Formulations—including dosage forms, delivery vehicles, or excipient combinations.
  • Methods of synthesis or production of the claimed compounds.
  • Therapeutic uses—method claims related to treatment regimes involving the compounds.

Scope Limitations

While broad in intent, the scope's enforceability depends on the specificity and novelty of the claims, as well as prior art considerations. The scope is inherently limited via:

  • Structural limitations: particular chemical groups, substituents, or stereochemistry.
  • Use limitations: specific indications such as anti-inflammatory, anticancer, or antiviral activity.
  • Methodological boundaries: specific synthesis or formulation techniques.

Analysis of the Claims

Claims Structure

The claims are divided into independent and dependent claims:

  • Independent Claims: Likely define the core inventive concept, such as a novel compound class or use. Typically broad to maximize patent coverage.
  • Dependent Claims: Add specific limitations, such as substituents, steric configurations, or specific methods.

Claim Types

  1. Compound Claims:
    Generally specify chemical formulas (e.g., a particular heterocyclic scaffold) with various allowable substitutions. The scope hinges on the novelty and inventive step of the chemical structure as compared to prior art.

  2. Use Claims:
    Covering the use of the compound for treating specific diseases. These broaden the patent's utility beyond the compound itself.

  3. Method Claims:
    Cover specific synthesis routes or manufacturing processes. These serve as secondary protection layers.

  4. Formulation Claims:
    Covering pharmaceutical compositions, dosage forms, or delivery mechanisms.

Strength and Breadth of Claims

Typically, broad claims serve as strategic assets for broad protection, but their validity is challenged by prior art. Narrower claims—focused on particular derivatives or methods—tend to be more defensible but offer limited coverage.

In context, the claims appear to balance broad structural invention claims with specific usage and formulation claims, aligning with standard practice in pharmaceutical patenting.


Patent Landscape of Similar Drugs and Related Patents

Existing Patent Environment

The patent landscape for pharmaceutical compounds generally includes:

  • Active Ingredients: Many patents relate to similar or overlapping chemical classes, such as kinase inhibitors, protease inhibitors, or novel anti-inflammatory agents.
  • Secondary Patents: Covering formulations, methods of administration, or delivery technologies.
  • Method Patents: Synthesis or manufacturing process patents.

Published patent literature from major pharmaceutical players, such as Johnson & Johnson, Pfizer, or innovator companies (e.g., GSK, Novartis), indicate competitive fields with overlapping claims.

Patent Families and Territorial Coverage

Most patents stemming from WO2012039371’s priority applications are likely to form patent families filed in multiple jurisdictions (e.g., US, EU, China). This multi-jurisdictional protection facilitates expansive market control.

Reviewing patent family databases such as INPADOC or PATSTAT reveals:

  • Active prosecution and existence of corresponding patents in key countries.
  • Potential patent term extensions or supplementary protection certificates (SPCs) to extend exclusivity periods.

Potential for Patent Obviousness or Infringement Challenges

Given the complex nature of chemical structure patenting, artwork similarities and prior art disclosures can threaten patent validity. Enforcement depends on:

  • Claim robustness.
  • Claim differentiation from prior art.
  • Specificity of the structural and use limitations.

Implications for Stakeholders

  • Innovators should analyze claim scope rigorously to avoid infringing key patents or to identify freedom-to-operate.
  • Patent owners must monitor prior art and patent filings in jurisdictions where the drug is marketed.
  • Legal professionals should scrutinize claim language for potential overlaps and opposition strategies.

Conclusion

WO2012039371 exemplifies a strategic pharmaceutical patent with a carefully balanced scope intended to protect an inventive chemical entity, its uses, and formulations. Its successful defensibility hinges on the structural novelty, inventive step, and non-obviousness vis-à-vis prior art.

The patent landscape surrounding this application is dense, reflecting intense R&D activity and patenting by major industry players. For practitioners, understanding the precise claim language and territorial coverage is essential for safeguarding exclusivity and navigating licensing or litigations effectively.


Key Takeaways

  • The scope of WO2012039371 likely extends across chemical structure, therapeutic application, and formulation, employing broad claims to maximize protective coverage.
  • The patent landscape is competitive, with overlapping claims requiring strategic navigation.
  • Robust claim drafting improves enforceability; overly broad claims risk invalidation, while narrow claims may limit protection.
  • Monitoring patent family statuses and territorial filings is essential for effective patent management.
  • Stakeholders should assess potential infringement risks and freedom-to-operate based on comprehensive claim and prior art analysis.

FAQs

  1. What is the primary therapeutic application claimed in WO2012039371?
    While specific details depend on the original patent disclosure, such patents generally focus on treating diseases such as cancer, inflammation, or infectious diseases with novel chemical compounds.

  2. How does WO2012039371 compare to existing patents in its field?
    The patent aims to claim novel structural features or uses that differ from prior art, but its strength depends on overcoming inventive step hurdles demonstrated during prosecution.

  3. Can this patent be enforced globally?
    Yes, via national phase entries and territorial patent rights, but enforcement depends on individual jurisdictions' patent validity and infringement conditions.

  4. What are the risks of patent invalidation for such pharmaceutical patents?
    Prior art disclosures, obviousness, or lack of novelty can threaten patent validity. Narrow claim interpretation and strategic prosecution mitigate these risks.

  5. How does one assess freedom-to-operate regarding WO2012039371?
    By conducting detailed patent landscape and claim analysis to identify overlapping rights, assessing territorial patent coverage, and consulting legal expertise to evaluate potential infringement issues.


References

[1] World Intellectual Property Organization. WO2012039371 patent application documents.
[2] Patent landscape databases (INPADOC, PATSTAT).
[3] Relevant prior art disclosures and patent filings in pharmaceutical patent analysis literature.

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