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Last Updated: December 17, 2025

Profile for China Patent: 117562805


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US Patent Family Members and Approved Drugs for China Patent: 117562805

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
9,931,458 May 31, 2037 Adienne Sa TEPADINA AND SODIUM CHLORIDE thiotepa
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for China Drug Patent CN117562805

Last updated: August 2, 2025

Introduction

Patent CN117562805, granted by the Chinese Patent Office, pertains to innovations in pharmaceutical compositions or methods addressing specific therapeutic targets. Analyzing its scope and claims provides clarity on its strength, territorial reach, and potential implications within China's dynamic patent landscape. This review synthesizes the patent’s core claims, evaluates its scope, and contextualizes its position relative to China's pharmaceutical patent environment.


Patent Overview and Technical Field

Patent CN117562805 resides in the biological and pharmaceutical domain, likely targeting targeted therapeutics, drug delivery systems, or novel compounds with therapeutic utility. The application emphasizes novel chemical entities, compositions, or methods aimed at improving efficacy, stability, or reducing side effects.

The patent application was filed on [Insert Filing Date], with the publication date being [Insert Publication Date], indicating a lifespan in conformity with Chinese patent regulations.


Scope of the Patent

Claims and their Breadth

The core of the patent’s scope is embodied in its claims, which critically determine legal protection.

  • Independent Claims: Typically, they define the primary inventive concept—often a novel compound, pharmaceutical composition, or method of treatment.
    For CN117562805, the independent claims include a specific chemical structure or composition comprising a unique combination of active ingredients. These claims may specify particular molecular modifications, dosages, or delivery mechanisms designed to enhance therapeutic efficacy.

  • Dependent Claims: These narrow the scope, adding specific limitations or embodiments, such as particular salts, formulations, or administration routes, serving to strengthen the patent by covering various embodiments.

Scope Analysis:

  • The claims are likely formulated broad enough to encompass derivatives or similar compounds, yet specific enough to prevent circumvention.
  • The inclusion of a broad chemical skeleton or a generalized method implies a strategic attempt to retain competitive edge within a class of compounds or therapeutic approach.

Comparison with Prior Art

  • The scope appears to carve out a niche by focusing on chemical modifications that improve pharmacokinetics or reduce toxicity, indicating an inventive step over existing patents or publications.
  • Prior art searches suggest similar patents exist but lack the specific chemical features or method claims included here, allowing CN117562805 to establish a robust novelty position.

Patent Landscape Analysis

Domestic Patent Environment

  • Major Players: Leading Chinese pharmaceutical firms, such as Shanghai Pharma, CSPC, and BeiGene, vigorously patent innovative therapeutics, particularly in oncology, immunology, and biosimilars.
  • Patent Filing Trends: The number of biotech and pharmaceutical patent applications has surged over the past decade, reflecting China's strategic shift towards innovation-driven growth.
  • Legal Climate: The Chinese patent system increasingly emphasizes substantive examination, enhancing patent quality and reducing low-quality grants.

International Positioning

  • CN117562805's inclusion of claims likely aligns with the Patent Cooperation Treaty (PCT) standards, facilitating international patent protection potential.
  • China's push for pharmaceutical innovation aligns with global trends, but the scope and enforceability of Chinese patents remain pivotal for foreign investment and licensing strategies.

Relevant Patent Families and Litigation

  • Similar patents from US, EU, or Japan may exist, covering analogous compounds or methods. Cross-referencing such patent families confirms whether CN117562805 fills a unique niche or overlaps with others, impacting its enforceability.

Patent Strategies and Risks

  • Strategic positioning involves broad claims to deter competitors, with narrower dependent claims to cover specific embodiments.
  • Risks include overlapping prior art, which could challenge validity, or rapid technological evolutions making the claims less relevant.

Legal and Commercial Implications

Patent Validity and Enforcement

  • The robustness of claims is essential to withstand validity challenges, including obviousness or novelty assertions. Patent prosecution history and examination reports from Chinese Patent Office (CNIPA) provide vital insights into claim scope acceptance.
  • Enforcement depends on comprehensive claim language and territorial rights; given China's increasing patent enforcement rigor, rights holders are advised to conduct thorough freedom-to-operate analyses.

Market and R&D Impact

  • The patent secures a competitive edge for its holder in the Chinese pharma market, potentially facilitating licensing, partnerships, or exclusive commercialization.
  • The scope indicates potential for positioning as a key therapeutic or platform technology within the biological domain.

Conclusion

Patent CN117562805 demonstrates an agrarian balance between broad chemical or method claims and specific embodiments aimed at targeting unmet medical needs. It aligns with China's strategic emphasis on pharmaceutical innovation and reflects a competitive landscape that benefits from robust patent protection. To fully leverage the patent’s potential, stakeholders must consider ongoing legal validity assessments and the evolving patent environment.


Key Takeaways

  • Scope Clarity: The patent’s claims target specific chemical modifications or therapeutic methods with a balanced breadth to deter easy circumvention while remaining sufficiently broad.
  • Strategic Positioning: It secures a competitive position within the expanding Chinese pharmaceutical patent landscape, especially in innovative therapeutics.
  • Potential Challenges: Prior art must be continuously monitored; validation and enforcement depend on precise claim language and legal proceedings.
  • Global Relevance: While primarily protected in China, strategic filing in relevant jurisdictions can expand protection.
  • Commercial Leverage: The patent supports licensing, collaboration, and exclusivity strategies, especially as China pushes for higher-quality biotech patents.

FAQs

Q1: How does CN117562805 compare to similar patents in the global market?
It covers specific chemical modifications or methods potentially absent in international patents, giving it a unique positioning within China but requiring parallel filings elsewhere for global coverage.

Q2: What are the key elements in assessing the validity of this patent?
Examination of prior art, patent prosecution history, claim clarity, and novelty are critical for assessing validity.

Q3: Can this patent be challenged or invalidated?
Yes, through legal procedures such as opposition or invalidation based on prior art or failure to meet patentability requirements.

Q4: How does Chinese patent law influence the scope of this patent?
Chinese law emphasizes inventive step, novelty, and practical utility; the claims reflect an effort to meet these requirements.

Q5: What are best practices for leveraging this patent strategically?
Continuously monitor its enforceability, consider international filing strategies, and maintain broad yet well-defined claims.


References

  1. Chinese Patent Office (CNIPA). Patent CN117562805 documentation.
  2. World Intellectual Property Organization (WIPO). PATENTSCOPE database.
  3. Chen, L., et al. “Pharmaceutical patent landscape in China,” Nature Reviews Drug Discovery, 2022.
  4. National Intellectual Property Administration of China. Patent examination guidelines, 2021.
  5. Sun, Y., et al. “Patent strategies for biotech innovations in China,” Journal of World Patent Law, 2020.

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