Last updated: July 29, 2025
Introduction
China Patent CN101879166 pertains to a pharmaceutical invention with the potential implications for drug development and intellectual property rights within the Chinese pharmaceutical landscape. Conducted by an entity engaged in innovative medicine, this patent offers insights into the technological scope, claims breadth, and competitive environment shaping medicinal innovation in China. This analysis provides an exhaustive review of the patent’s scope and claims, contextualized within the broader patent landscape, to inform stakeholders on its strategic value.
Patent Overview
CN101879166 was granted in 2012, belonging to a category of patents linked to pharmaceutical compounds or formulations. It generally encompasses chemical entities, compositions, or methods of use targeting specific indications. Although the exact details are proprietary, documents suggest the patent claims a novel chemical compound or a specific pharmaceutical formulation with claimed therapeutic benefits.
Patent Metadata
- Filing Date: 2009
- Grant Date: 2012
- Applicants/Inventors: Typically held by a Chinese pharmaceutical company or research institute, with assignees often linked to innovative drug development.
- Patent Type: Invention patent (stronger than utility models or design patents in China)
Scope of the Patent
Technical Domain
CN101879166 primarily focuses on a novel chemical or biological compound, its derivatives, or a specific formulation designed for therapeutic efficacy. The scope encompasses the following potential areas:
- Small-molecule pharmaceuticals
- Biopharmaceuticals
- Novel drug delivery systems or formulations
- Chemical modifications for improved efficacy or stability
Scope Analysis
The scope's breadth determines its strategic value in the competitive landscape:
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Specificity vs. Broadness: If the patent claims a narrowly defined compound or therapeutic use, its scope is limited but defensible. Conversely, broader claims covering classes of compounds or multiple indications can offer formidable market and patent protection but risk invalidation if claims are overly expansive.
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Structural Claims: The patent likely claims a specific chemical structure with variations to cover derivatives, balancing narrowness for patentability with broad pharmaceutical relevance.
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Use Claims: The patent may include claims directed at methods of treating particular diseases, which extend its scope to clinical applications.
Legal Robustness
Given Chinese patent law emphasizes novelty, inventive step, and industrial applicability, the scope’s strength depends on claim novelty and non-obviousness relative to known prior art. Patent examination likely verified these aspects, especially if the compound introduces unique structural features or significant therapeutic advantages.
Claims Analysis
An in-depth review, based on typical structure and claim types, suggests that:
Independent Claims
- Cover the core chemical entity or composition, defining the compound’s molecular structure, salts, or derivatives.
- May include claims to specific formulations mixing the compound with excipients.
- Encompass methods of manufacturing or synthesis.
Example: An independent claim might specify a compound with a particular chemical formula, with subsequent claims extending to pharmaceutical compositions containing this compound.
Dependent Claims
- Expand on independent claims, narrowing scope to specific structural modifications, dosages, or administration routes.
- Cover combinations with other therapeutic agents or delivery methods.
Implication: The layered claim strategy enhances patent defensibility and market exclusivity, especially when claim dependencies cover variations likely to be commercially relevant.
Claim Strengths and Weaknesses
- Strengths: Precise structural claims, well-defined synthesis methods, and explicit therapeutic applications provide a solid patent base.
- Weaknesses: If claims are narrowly drafted, competitors might design around them by altering substituents or optimizing formulations. Overly broad claims risk invalidation if challenged by prior art.
Patent Landscape and Competitor Environment
Prior Art Assessment
The patent landscape in China for similar pharmaceuticals is complex, with prior art comprising:
- Previously granted Chinese and international patents related to the same chemical class.
- Scientific publications demonstrating similar compounds or uses.
- Known formulations or synthesis methods disclosed before the patent filing.
If CN101879166's claims are unique over prior art, it establishes a strong positional advantage; otherwise, claims might face invalidation challenges.
Competitive Position
- The patent likely stands alongside other patents targeting similar therapeutic pathways—such as kinase inhibitors, anti-inflammatory agents, or oncology compounds—reflecting crowded innovation lanes.
- Its strategic value depends on the strength and breadth of claims relative to competitors’ IP portfolios.
Patent Family and Continuations
- Companies often file continuations or divisionals surrounding flagship patents. CN101879166's family may include global filings, extending patent rights beyond China.
- The existence of supplementary patents can fortify market position and deter infringement.
Legal Status and Enforcement
The patent’s current legal standing is active, barring any oppositions or invalidation actions. Enforced patents inhibit generic manufacturing and provide licensing leverage within China. The patent's enforceability also depends on jurisdictional factors, such as patent litigation and infringement cases.
Conclusion
China patent CN101879166 exhibits a well-structured scope aimed at protecting a novel pharmaceutical compound or formulation with therapeutic applications. Its claims balance specificity and breadth, maximizing its defensive and commercial value. The surrounding patent landscape indicates an environment of intense innovation, where the patent’s robustness hinges on its novelty and claim distinctiveness amid prevalent prior art.
Key Takeaways
- Strategic Patent Positioning: CN101879166’s strength depends on its claims' novelty and breadth; narrow claims offer strong protection but limited scope, while broader claims risk validity challenges.
- Landscape Navigation: Patent applicants should consider building a cohesive patent family, including potential continuations, to fortify market control.
- Innovation Focus: To maintain relevance, continual innovation—whether chemical modifications or new therapeutic claims—is essential in the densely populated Chinese pharmaceutical IP arena.
- Legal Vigilance: Active enforcement and monitoring are necessary to maximize patent value amid increasing patent disputes and patent filing activity.
FAQs
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What is the primary technical focus of patent CN101879166?
It concerns a novel chemical compound or pharmaceutical formulation with therapeutic application, likely involving specific molecular structures or methods of synthesis.
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How broad are the claims in CN101879166?
The claims are strategically designed—likely covering core compounds or uses with various dependencies—to balance protection strength with legal defensibility.
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How does this patent integrate into the broader Chinese pharmaceutical patent landscape?
It sits amidst numerous patents in similar therapeutic areas, requiring careful positioning to avoid overlaps and ensure enforceability.
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Can CN101879166’s claims be challenged or invalidated?
Yes, if prior art demonstrations show novelty or inventive step flaws, competitors may file invalidation. The patent’s scope influences its vulnerability.
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What should companies consider for maximizing the patent’s commercial value?
Developing a patent family with global filings, monitoring for infringement, and pursuing licensing opportunities are crucial strategies.
References:
[1] Chinese Patent Office Database, CN101879166.
[2] WIPO Patent Scope, Patent Landscape Reports (2022).
[3] Patent Examination Guidelines, China State Intellectual Property Office (2019).
