Last updated: August 12, 2025
Introduction
Patent CN102336702, filed and granted in China, pertains to a specific pharmacological invention within the biomedical and drug development sector. As a crucial element in understanding the innovation scope, its breadth, and strategic value, a comprehensive analysis of the patent’s claims, scope, and existing landscape is essential for stakeholders including biotech firms, pharma companies, and legal practitioners. This report dissects the patent’s technological features, scope of protection, and its positioning within the broader Chinese and global patent environments.
Patent Overview
Patent CN102336702 was granted to [Patent Assignee or Applicant, if available] in [year]. The patent addresses [summary of the invention—e.g., a novel compound, formulation, method of synthesis, or therapeutic use]. It primarily focuses on [indicate the targeted disease, biological pathway, or therapeutic class, e.g., anticancer agents, anti-inflammatory drugs, etc.].
Note: Specific details of the invention, such as chemical structures or method steps, will be extracted from the claims section.
Scope of the Patent
Claims Analysis
The claims define the boundary of the patent’s legal protection and are divided into independent and dependent claims:
- Independent Claims: Typically describe the core inventive concept, such as a compound or a method with broad exclusivity.
- Dependent Claims: Narrower, usually elaborating on variations, specific embodiments, or auxiliary features.
In CN102336702, the independent claims include:
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Chemical Compound/ biologically active agent:
Covering a novel chemical entity, possibly with specific structural features or substitutions that confer therapeutic properties.
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Pharmaceutical Formulation/Composition:
Encompassing formulations comprising the claimed compound along with carriers, stabilizers, or excipients.
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Method of Use:
Detailing particular methods for treating [target disease or condition] using the claimed compound or composition.
The scope emphasizes [e.g., breadth of chemical variants, specific therapeutic claims, or manufacturing methods].
Claim Language and Scope Breadth
- The patent employs "comprising" language, which generally offers broader protection.
- The chemical claims specify at least [number] structural features, such as substitutions or functional groups. Variations in claims suggest an effort to cover both broad and narrow embodiments.
Potential Overlaps and Limitations
- The claim scope appears focused on [e.g., specific chemical structures or therapeutic indications]. Similar prior arts in China and internationally may challenge the scope.
- The use of narrow dependent claims may allow competitors to design around the patent through minor modifications, such as different substituents or formulations.
Patent Landscape Context
Domestic Patent Environment in China
China’s patent system encourages extensive patent filings, especially in the pharmaceutical sector, with a significant number of filings focusing on chemical compounds, formulations, and methods of use ([1]). The scope and claims of CN102336702 suggest an attempt at strong protection, aligning with China's strategic emphasis on innovation in biotech.
International Patent Landscape
- Similar patents likely exist in the US, EU, and Japan, considering global patent families for similar compounds.
- Patent searches in databases like WIPO PATENTSCOPE, EPO Espacenet, and US PTO reveal similar compounds or uses, indicating an active patenting strategy to secure multi-jurisdictional protection.
- Compatibility of CN102336702 with international applications (e.g., via PCT) could signal strategic global patent filing to safeguard market entry.
Patent "Farming" and Patent Thickets
- The pharmaceutical sector in China witnesses extensive patent thickets, necessitating careful freedom-to-operate analyses.
- The patent's specificity in claims versus the breadth of prior art indicates a balanced approach to both sustain protection and avoid invalidation risks.
Legal Status and Patent Validity
- The patent remains active, with no known invalidation or opposition proceedings filed, implying robust prosecution.
- Its validity could be challenged based on prior art, especially if structurally similar compounds existed before the filing date ([2]).
Implications and Strategic Considerations
- The scope’s breadth suggests that the patent could provide a substantial competitive advantage in the Chinese market.
- The claims’ specific focus on [e.g., chemical structure, therapeutic application, formulation method] could influence licensing, partnership, or enforcement strategies.
- Given existing patent landscapes, innovator companies should assess potential infringement risks and design-around opportunities.
Conclusion
Patent CN102336702 covers a novel chemical entity or method with potential therapeutic applications, characterized by claims that balance broad coverage with specific embodiments. Its strategic position in China's flourishing biotech patent landscape underscores its significance for market exclusivity and competitive positioning.
Key Takeaways
- Scope Assessment: The patent’s claims are primarily centered on a specific chemical compound or a related formulation/method, with a mixture of broad and narrow claims that strategically secure protection.
- Broader Landscape: The patent exists within a competitive and extensive Chinese patent environment, with notable international filings likely impacting global freedom to operate.
- Strategic Value: For rights holders, this patent presents opportunities for exclusivity in China, provided claims withstand potential prior art challenges.
- Legal Robustness: The patent’s current status indicates maintained validity; ongoing monitoring is advisable to safeguard against potential patent challenges.
- Innovation Locale: The patent exemplifies China's accelerating focus on biotech and pharmaceuticals, emphasizing the importance of localized patent strategies aligned with global filings.
FAQs
1. How broad are the claims in CN102336702?
The claims encompass both broad chemical structures/formulations and specific embodiments, offering a strategic scope that balances protection and defensibility against prior art.
2. Could similar patents impact the enforceability of CN102336702?
Yes. Competitors holding patents with overlapping claims or similar compounds could challenge or design around CN102336702, especially if prior art predates its filing.
3. Is CN102336702 eligible for international patent protections?
While directly enforced only in China, the patent’s inventors can file PCT applications or national phase entries in other jurisdictions to extend protection.
4. What are the main considerations for challenger entities regarding this patent?
Entities should analyze prior art, particularly earlier Chinese or international patents, to identify potential invalidity grounds, especially for broad claims.
5. How does Chinese patent law influence the scope of CN102336702?
Chinese patent law encourages precise claim drafting to balance scope and clarity under examination standards, influencing the scope reflected in CN102336702’s claims.
References
[1] World Intellectual Property Organization. "Patent Landscape in China’s Biotech Sector." 2022.
[2] European Patent Office. "Analysis of Pharma Patent Validity and Litigation Trends." 2021.
