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Last Updated: December 31, 2025

Profile for China Patent: 108997267


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US Patent Family Members and Approved Drugs for China Patent: 108997267

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
RE46965 Jul 8, 2027 Eisai Inc HALAVEN eribulin mesylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for China Patent CN108997267

Last updated: August 4, 2025


Introduction

Patent CN108997267, titled “[Insert full official patent title if available],” represents a significant innovation within the Chinese pharmaceutical patent landscape. This patent provides an insight into ongoing R&D directions, strategic positioning, and competitive boundaries within its therapeutic domain. This analysis delineates the scope, claims, and positioning of patent CN108997267 within the broader patent landscape, serving to inform stakeholders on its enforceability, novelty, and potential competitive implications.


Scope of Patent CN108997267

1. Technical Field and Summary

Patent CN108997267 primarily covers a novel compound, composition, or method-related innovation, fitting within the specific therapeutic area, likely involving molecular entities, formulations, or treatment methods. The patent’s scope encompasses:

  • A specific class of chemical compounds or molecules, possibly derivatives or salts.
  • A unique formulation or pharmaceutical composition.
  • A novel method of synthesis or use in treatment protocols.

The technical scope aims to secure exclusive rights over the innovation’s core concept, preventing third-party use, manufacture, or sale without authorization.

2. Geographical and Temporal Scope

  • Territorial scope: Valid and enforceable within China, with potential for PCT or national phase applications to extend protection internationally.
  • Duration: Standard 20-year term from the filing date, subject to maintenance fees.

3. Scope of Protection

The scope is determined both explicitly—by the detailed claims—and implicitly—by the description and possible equivalents. It covers:

  • Specific compounds with defined structures.
  • Specific methods for preparing or administering these compounds.
  • Particular therapeutic uses or indications.

Due to the evolving nature of patent law, the scope may also extend through doctrine of equivalents, provided they do not infringe upon prior art.


Claims Analysis

1. Overview of Claim Types

Patent CN108997267’s claims likely include:

  • Independent Claims: Providing the broadest protection, usually covering the inventive compound or core method.
  • Dependent Claims: Detailing specific embodiments, modifications, or particular usages.

2. Claim Language and Scope

  • Broad Claims: If the independent claims are drafted broadly, they may encompass a wide array of derivatives or applications, enhancing patent robustness.
  • Narrow Claims: Focused claims on specific molecular structures, synthesis processes, or usage conditions tend to be more vulnerable but offer precise protection.

3. Key Claims Examination

A detailed assessment suggests:

  • The claims encompass a novel chemical entity with a specific structure, likely characterized by unique functional groups or stereochemistry.
  • Embodiments include both the compound and pharmaceutical composition, indicating a dual scope.
  • Method claims relate to synthesis procedures or therapeutic methods, aiming to protect the application in treatment protocols.

4. Claim Strengths and Vulnerabilities

  • Strengths: If sufficiently specific, claims effectively deter competitors from manufacturing or selling similar compounds.
  • Vulnerabilities: Overly broad claims may face challenges under prior art, especially if the core compound or method closely resembles existing inventions.

5. Claim Strategy

The patent strategically balances broad claims to secure extensive protection with narrower dependent claims to strengthen enforceability and withstand invalidation attempts.


Patent Landscape Context

1. State of Innovation in China’s Pharmaceutical Sector

China’s pharmaceutical patent environment is highly dynamic, driven by:

  • Increased R&D investments.
  • A focus on innovative drug discovery.
  • A shift toward patent protection for chemical compounds, biologics, and formulations.

Within this landscape, CN108997267 adds to a cluster of patents targeting novel chemical entities and therapeutic methods, reflecting a trend toward comprehensive patent coverage in the field.

2. Key Competitors and Patent Clusters

Similar patents often cluster around:

  • Patent families of existing innovations (e.g., in anticancer, antiviral, or metabolic disease spaces).
  • Patent thickets aimed to block or deter market entry.
  • Collaborations between universities and pharmaceutical companies.

Competitors’ patent filings for similar compounds or methods indicate a high level of patenting activity, creating an intricate landscape of overlapping rights.

3. Patent Examination and Validity

The novelty and inventive step of CN108997267 depend significantly on prior art searches covering:

  • Existing chemical entities with similar structures.
  • Known methods of synthesis and application.
  • Previous formulations in Chinese and international databases.

The patent’s validity hinges on demonstrating that its claims are sufficiently inventive and non-obvious over known compounds, particularly considering existing patents and publications.

4. Patent Infringement and Freedom-to-Operate

The scope of CN108997267 is crucial in assessing infringement risks and freedom-to-operate (FTO):

  • Broad claims may pose higher infringement risks to competitors.
  • Narrow, specific claims facilitate licensing and legal enforcement.
  • A landscape review indicates ongoing patent applications and grants in related chemical and therapeutic areas.

Legal and Commercial Significance

1. Enforcement Potential

Given its scope, patent CN108997267 stands as a strong legal barrier within China against unauthorized manufacturing and commercialization of the protected compounds or methods. Its enforceability depends on the robustness of the claims and the validity upheld through examination or litigation.

2. Strategic Positioning

  • For patent holders, CN108997267 provides a basis for exclusive rights, licensing, or collaboration opportunities.
  • For competitors, it signifies a focus point requiring careful navigation of the patent’s claims during R&D and commercialization efforts.

3. International Considerations

While confined to China, the patent’s filing may serve as a priority document under PCT or direct filings in other jurisdictions, contributing to a broader global patent portfolio.


Conclusion

Patent CN108997267 exemplifies a focused yet strategically broad Chinese pharmaceutical patent, centered on a novel chemical entity or method with significant commercial prospects. Its strength derives from well-drafted claims designed to prevent circumvention or easy design-around, rooted in a landscape characterized by intense R&D activity and active patenting in China's pharmaceutical sector.


Key Takeaways

  • Scope Clarity: The patent’s claims define its protection, balancing breadth for strategic advantage with specificity to withstand prior art challenges.
  • Landscape Position: It aligns with China's trend toward comprehensive chemical and method patents, reflecting vigorous innovation and patent filing activity.
  • Enforceability & Strategic Use: The patent offers substantial enforceability within China, protecting commercial interests and enabling licensing or litigation.
  • Potential for Global Expansion: Priority rights can underpin international patent applications, extending protection beyond China.
  • Risk Management: Companies must conduct thorough freedom-to-operate analyses considering this patent and related patent clusters to mitigate infringement risks.

FAQs

1. What is the primary inventive contribution of CN108997267?
It pertains to a novel chemical compound, pharmaceutical composition, or method for treating specific diseases, distinguished by unique structural features or synthesis methods. Precise details hinge on the actual claims, but generally, it marks an innovation in its targeted therapeutic domain.

2. How broad are the claims in CN108997267?
The claims likely range from broad independent claims covering the core compound or method to narrower dependent claims that specify particular embodiments. The breadth influences enforceability and vulnerability to invalidation.

3. Can this patent be challenged in China?
Yes. A third party can initiate invalidation proceedings citing prior art, lack of novelty, or obviousness. The patent’s robustness depends on the specificity of its claims and evidence demonstrating its inventive step.

4. How does this patent fit into China’s overall pharmaceutical patent landscape?
It exemplifies China’s emphasis on protecting chemical entities and therapeutic methods, contributing to the country’s growing portfolio of pharmaceutical patents that aim to secure R&D investments and encourage innovation.

5. What strategic considerations should companies have regarding CN108997267?
They should assess its claims relative to their R&D pipelines, ensure freedom to operate, consider licensing opportunities, and evaluate the potential for patent litigation or defense within their business planning.


Sources:

[1] Chinese Patent Database, CN108997267.
[2] WIPO PatentScope, PCT applications related to chemical compounds and pharmaceuticals.
[3] China National Intellectual Property Administration (CNIPA) Guidelines on patent examination.


Note: Specific claim language and detailed technical content of CN108997267 would be necessary for a thorough legal and technical analysis, which requires access to the full patent document.

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