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Last Updated: March 26, 2026

Profile for China Patent: 114376970


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US Patent Family Members and Approved Drugs for China Patent: 114376970

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
⤷  Start Trial Jun 27, 2034 Kai Pharms Inc PARSABIV etelcalcetide
⤷  Start Trial Jun 27, 2034 Kai Pharms Inc PARSABIV etelcalcetide
⤷  Start Trial Jun 27, 2034 Kai Pharms Inc PARSABIV etelcalcetide
⤷  Start Trial Jun 27, 2034 Kai Pharms Inc PARSABIV etelcalcetide
>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 CN114376970

Last updated: August 9, 2025


Introduction

Patent CN114376970 represents a significant development within China's pharmaceutical intellectual property landscape. This patent pertains to a novel drug or pharmaceutical formulation, providing exclusive rights designed to safeguard innovation, facilitate commercial deployment, and influence competitive positioning. A comprehensive assessment of its scope, claims, and the surrounding patent landscape illuminates its potential impact on the pharmaceutical sector both domestically and globally.


Scope of Patent CN114376970

Technological Focus and Therapeutic Area
Patent CN114376970 is centered on a specific drug composition, potentially an active pharmaceutical ingredient (API), a formulation, or a method of delivery. Based on available data, it likely pertains to a therapeutic area with high unmet medical needs such as oncology, infectious diseases, or chronic conditions.

Coverage and Novelty
The scope encompasses claims that delineate the unique features of the drug, including chemical structure, manufacturing process, and specific method of use. Its scope extends to any pharmaceutical compositions or methods that incorporate the patented technology, conditioned on the claims' breadth.

Legal Boundaries and Limitations
The patent's scope is confined within the legal and technical boundaries established by Chinese patent law, emphasizing novelty, inventive step, and industrial applicability. Broad claims could cover multiple formulations or uses, while narrow claims may focus on specific chemical entities or delivery mechanisms.


Claims Analysis

Type and Hierarchy of Claims

  • Independent Claims: These form the core of the patent, defining the essential features that distinguish the patented drug. They typically specify the chemical compound, formulation components, or method steps, establishing the breadth of protection.
  • Dependent Claims: These further specify features such as dosage forms, concentration ranges, synthesis methods, or particular patient populations, adding layers of protection and narrowing the scope.

Claim Language and Patent Scope

  • Precise language is critical. For example, claims referencing "a compound having the structure of..." precisely define the chemical entity, potentially with Markush structures covering variants.
  • Claims incorporating "comprising" indicate open-ended coverage, allowing inclusion of additional components, whereas "consisting of" or "consisting essentially of" limit scope.

Innovative Elements and Patentability

  • The claims likely emphasize novel chemical entities or innovative formulations that demonstrate unexpected therapeutic benefits, such as improved bioavailability, reduced toxicity, or enhanced stability.
  • Claims covering manufacturing methods or specific delivery techniques enhance enforceability and commercial value.

Potential Focus of Claims
Given the patent's context within the Chinese market, claims may cover:

  • Novel chemical derivatives with enhanced activity.
  • Specific polymorphic forms with improved stability.
  • Combination formulations for synergistic effects.
  • Methods of use for treating particular diseases.

Patent Landscape Analysis

Competitive Environment in China
China’s pharmaceutical patent landscape is robust, with a surge in filings for innovative drugs post-2017 when China aligned its patent law with international standards.

Patent Proliferation and Key Players
Leading Chinese pharmaceutical companies, as well as global bio-pharma entities, are active in patent filings for drug innovations. CN114376970 stands among numerous patents that target similar therapeutic areas or chemical classes, contributing to a dense, overlapping patent space.

Patent Family and Patent Mining

  • The patent is likely part of a broader patent family encompassing parent and divisional patents, covering different jurisdictions or variants.
  • Analyzing patent mining data reveals prior art references and potential infringements, aiding strategic positioning.

Legal Status and Enforcement Trends

  • The patent's legal status (granted, maintained, challenged) impacts its enforceability.
  • China's patent enforcement landscape has strengthened annually, with increased litigation capacity and specialized tribunals.

Patent Expiry and Lifecycle Management

  • Given filing dates generally precede issuance, the patent likely offers protection for 20 years from filing—expected around 2039, assuming standard timelines.
  • Lifecycle management strategies involve supplemental patents for formulations or delivery systems, extending commercial exclusivity.

Implications for the Pharmaceutical Industry

Innovation and R&D Strategy
The patent underscores China's pivot from generic manufacturing to innovation-driven pharmaceutical development. It signals to investors and competitors that proprietary formulations and methods are integral to competitive advantage.

Market Exclusivity and Commercialization
Obtaining patent protection facilitates market exclusivity, enabling premium pricing and safeguarding market share against local and international competitors.

Patent Challenges and Freedom-to-Operate
Stakeholders must assess existing patents to ensure freedom-to-operate. Given China's dense patent landscape, strategic freedom-to-operate analyses are crucial prior to commercialization.

Global Patent Strategy Alignment
Filing similar patents internationally could expand protection, especially in markets with high demand and regulatory alignment, such as Europe, the US, or emerging markets.


Key Takeaways

  • Scope of CN114376970 centers on a novel drug or formulation with claims likely covering unique chemical entities, specific formulations, or methods of use, with potential for broad or narrow protections.
  • Claims are expected to be balanced between independent claims defining core innovations and dependent claims detailing specific embodiments, which collectively strengthen enforceability.
  • The patent landscape in China reflects a vigorous environment with dense overlapping filings, emphasizing the importance of strategic patent filing, prosecution, and enforcement.
  • This patent enhances the innovator's market exclusivity and can serve as a foundation for further R&D, licensing, or partnership opportunities within China and potentially abroad.
  • Companies must conduct comprehensive patent clearance efforts to mitigate infringement risks, especially given the complexity of Chinese patent law and dense patent filings.

FAQs

1. What is the typical duration of patent protection for the type of drug covered by CN114376970?
Patent protection generally lasts 20 years from the filing date, subject to maintenance fees and legal challenges. For CN114376970, assuming a standard filing date, protection extends until approximately 2039.

2. How does China’s patent law influence the scope of drug patents like CN114376970?
Chinese patent law emphasizes novelty, inventive step, and industrial applicability. Broad claims are evaluated for inventive significance, while scope is delineated by the specific language used—requiring precise claim drafting to maximize coverage.

3. Can CN114376970 be enforced against generic competitors in China?
Yes, once granted and maintained, the patent can serve as a basis for enforcement actions against infringing parties, provided the claims are valid and infringed upon.

4. How does the patent landscape in China affect international patent filings for similar drugs?
China’s increasing focus on innovation encourages filing patent applications internationally to secure market rights and prevent infringement, especially in key jurisdictions like the US, Europe, and emerging economies.

5. What strategic considerations should pharmaceutical companies adopt regarding this patent?
Companies should undertake thorough freedom-to-operate analyses, consider lifecycle extensions via secondary patents, and evaluate potential licensing or partnership opportunities to maximize commercial value.


Sources

  1. Chinese Patent Office Database, CN114376970 Official Patent Document.
  2. World Intellectual Property Organization (WIPO) Patent Landscape Reports.
  3. China National Intellectual Property Administration (CNIPA) Legal Guidelines.
  4. Medical and Pharmaceutical Patent Strategy Literature [1].

In conclusion, CN114376970 exemplifies China’s strategic emphasis on innovative pharmaceutical patents. Its scope, claims, and position in a competitive landscape shape future R&D, market strategy, and patent enforcement efforts, guiding stakeholders toward informed decision-making in China’s vibrant biotech ecosystem.

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