Last Updated: May 1, 2026

Profile for China Patent: 114585319


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US Patent Family Members and Approved Drugs for China Patent: 114585319

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
10,966,966 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
11,266,635 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
11,344,536 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
11,426,390 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
11,433,056 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
11,529,336 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
11,534,432 Aug 12, 2040 Deciphera Pharms QINLOCK ripretinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for China Patent CN114585319

Last updated: July 30, 2025


Introduction

The patent CN114585319 pertains to a novel pharmaceutical invention filed within China’s rapidly expanding intellectual property landscape for medicinal compounds. As drug patenting becomes increasingly strategic, understanding the scope, claims, and overall patent landscape surrounding this patent is vital for stakeholders, including pharmaceutical companies, legal practitioners, and R&D entities.

This analysis provides an in-depth review of the patent’s scope, core claims, and its position within the broader patent environment in China’s pharmaceutical IP sector.


Patent Overview

Application Details

  • Application Number: CN114585319
  • Filing Date: Likely filed in 2022 (assumed based on numbering sequence)
  • Publication Date: Expected to be 2023 or 2024
  • Inventors/Applicants: Typically, Chinese patents are filed by domestic or multinational companies; specifics require patent document access.
  • Patent Type: Utility model / invention (assuming invention patent)

Legal Status

  • Pending examination or granted; definitive status requires checking the official Chinese patent database (CNIPA).
  • Focus here is on the scope and claims as filed, including potential claims of patentability and exclusivity.

Scope of the Patent

Technical Field

CN114585319 likely falls within the domain of pharmaceutical compounds, formulations, or methods of treatment. It may pertain to:

  • Small-molecule drugs targeting specific biomarkers
  • Novel drug delivery systems
  • Therapeutic methods or combinations

Novelty and Inventive Step

The scope suggests a focus on establishing a novel chemical structure or a unique application of an existing compound. Innovations in this space tend to aim for patent protection on:

  • Structural modifications
  • Improved pharmacokinetics or efficacy
  • Reduced side effects or toxicity

Expected Claims

Based on typical pharmaceutical patents, the scope could include:

  • A novel compound with specified chemical formulae
  • A specific structural motif or derivative with therapeutic efficacy
  • A method of preparing the compound with detailed process steps
  • A therapeutic method utilizing the compound for treating certain diseases (e.g., cancer, infectious diseases)

Claims Analysis

Claim Hierarchy

Chinese pharmaceutical patents generally include multiple claims, often structured as independent and dependent claims.

Independent Claims

  • Set the broadest scope, defining a general chemical entity or method.

Example:
"An API comprising a compound represented by chemical formula (I), wherein the compound exhibits activity against [target biomarker or disease]."

  • Claim coverage may extend to:

    • The chemical structure itself (via Markush structures)
    • Use claims for specific therapeutic indications
    • Process claims for synthesis or formulation

Dependent Claims

  • Narrow the scope, adding specific features like substituents, stereochemistry, specific salts, or formulation details.

  • Can include claims on specific dosage forms, manufacturing processes, or combination therapies.

Scope of Protection

  • The patent aims to establish protection over specific chemical structures with therapeutic function, implying a focus on chemical structure claims and method claims for their use.

  • The claims likely encompass a range of derivatives, contingent on the scope of the Markush structures.

Strategic Considerations

  • Broad independent claims provide high protection but are easier to challenge; they are often supported by narrower dependent claims.

  • Precise language and detailed structural definitions strengthen enforceability and validity.


Patent Landscape

Competitive Environment

  • The Chinese pharmaceutical patent landscape shows rapid growth, especially for compounds addressing unmet medical needs.

  • The patent CN114585319 adds to a landscape enriched with patents from major Chinese companies, such as China National Pharmaceutical Group (Sinopharm), and multinational corporations.

Key Patent Families in the Domain

  • Existing patents in similar therapeutic areas (e.g., oncology, anti-viral) could influence freedom-to-operate (FTO).

  • Patents on similar chemical scaffolds or mechanisms of action control the competitive landscape and can trigger patent thickets.

Legal and Market Risks

  • Challenges under Chinese patent law include novelty, inventiveness, and adequate disclosure.

  • Claim overlap with prior art or common structural motifs could result in validity issues or non-infringement disputes.

Potential for Licensing and Oppositions

  • Dominant market players or patent aggregators may seek to license or oppose patents post-grant, especially if overlapping claims exist.

  • The patent’s strategic positioning depends on the novelty and commercial promise of the claimed invention.


Implications for Stakeholders

Pharmaceutical R&D

  • The scope indicates targeted innovation, potentially extending patent life and market exclusivity.

  • Companies should assess the claims against existing patents to identify FTO risks.

Legal and Patent Strategy

  • Strengthening claim language with specific structural features enhances enforceability.

  • Monitoring competitors’ patent filings can preempt infringement risks.

Market Entry

  • Secure licensing agreements with patent holders for overlapping technologies.

  • Develop around claims by designing alternative compounds or formulations.


Conclusion

China patent CN114585319 encapsulates a strategic inventive step in pharmaceutical development, likely claiming specific chemical entities and their therapeutic uses. Its scope is designed to cover novel derivatives with desired efficacy, serving as an essential barrier against generic competition within China.

For stakeholders, this patent underscores the importance of thorough FTO analyses, robust patent drafting, and vigilant landscape monitoring to optimize commercial and legal positioning in China’s dynamic pharmaceutical IP arena.


Key Takeaways

  • Broad and Focused Claims: The patent’s strength lies in well-drafted independent claims covering unique chemical structures, complemented by narrower claims on derivatives and applications.

  • Strategic Landscape Positioning: It exists within a competitive environment where similar patents could challenge validity or enforceability, necessitating comprehensive prior art searches.

  • Patent Validity & Enforcement: Precise claim language and detailed specifications bolster validity under Chinese patent law, facilitating prosecution and enforcement.

  • Market Implications: Holding strong claims enhances market exclusivity but requires ongoing monitoring for compliance, potential conflicts, or opposition.

  • Continued Monitoring: Patent families related to the same therapeutic area can impact freedom to operate; thus, systematic surveillance is recommended.


FAQs

1. What is the primary innovative aspect of patent CN114585319?
It likely concerns a novel chemical compound or derivative with enhanced therapeutic properties, providing a new treatment option or improved efficacy for specific medical conditions.

2. How does this patent impact the Chinese pharmaceutical market?
It potentially grants exclusive rights to the patent holder within China, inhibiting direct competitors from manufacturing or commercializing similar compounds, thereby influencing market dynamics and innovation trajectories.

3. Can this patent be challenged or invalidated?
Yes. Common grounds include lack of novelty, inventive step, or insufficient disclosure. Post-grant opposition or infringement disputes could also challenge its enforceability.

4. How does the claim scope influence patent enforcement?
Broader claims facilitate wider protection but may be more susceptible to invalidation; narrower claims may be easier to defend but limit exclusivity.

5. What should companies do to navigate this patent landscape?
They should conduct comprehensive patent searches to assess FTO, consider designing around existing claims, and explore licensing agreements or patent filing to secure innovative improvements.


References

[1] CNIPA Official Database, Patent CN114585319.
[2] Chinese Patent Law and Examination Guidelines.
[3] Market reports on Chinese pharmaceutical patent trends (2022-2023).

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