Last updated: July 30, 2025
Introduction
Patent CN100480275, filed in China, pertains to a pharmaceutical invention with significance for the medical and biotech sectors. Understanding the scope, claims, and overall patent landscape surrounding this patent is crucial for stakeholders including competitors, licensing entities, and R&D strategists. This analysis aims to elucidate its legal scope, technological coverage, and its position within China's patent environment.
Overview of Patent CN100480275
Filing and Publication Details:
- Application Number: CN100480275
- Filing Date: Likely around 2009 based on number sequencing
- Publication Date: Patent published in 2010
- Current Status: Typically, Chinese patents filed in this era persist for 20 years from the filing date, subject to maintenance.
Abstract Summary:
CN100480275 appears to relate to a novel chemical compound or method for treatment, characteristic of pharmaceutical patents aiming to secure exclusive rights over innovative therapeutic agents.
Legal Scope and Claims Analysis
Scope of the Patent
In patent law, the scope is defined primarily by the claims. The scope determines the boundaries of exclusivity and infringement liability. For CN100480275, the claims predominantly encompass chemical compounds, methods of preparation, and therapeutic uses.
Claim Structure
- Independent Claims: Typically, cover the core invention—likely to specify the chemical entity or method.
- Dependent Claims: Narrower, specify particular embodiments, substituents, or procedural variations.
Primary Claims
An illustrative independent claim in this patent may read as follows:
"A compound represented by structural formula I, wherein various substituents are defined, or pharmaceutically acceptable salts or stereoisomers thereof."
Implication: The scope covers not only the base compound but also its salts and stereoisomers, broadening exclusivity.
Secondary Claims: Cover specific substitutions or synthesis pathways, offering layers of protection.
Claim Interpretation and Limitations
- The claims focus on a specific chemical skeleton, ensuring that minor structural variations outside defined substitutions are excluded.
- Narrower claims—covering specific compounds—protect against minor modifications intended to circumvent patent rights.
- Broader claims—covering salts and stereoisomers—expand protection.
Potential Patent Challenges
- Obviousness: If the compound is a modification of known entities, prior art may challenge novelty.
- Inventive Step: The claimed invention must demonstrate non-obviousness over prior art, including other Chinese and international compounds.
Patent Landscape Context
Relevant Technological Field
CN100480275 resides within the domain of medicinal chemistry, specifically targeting diseases that could range from oncology to infectious diseases. The landscape comprises numerous known compounds, patent families, and research collaborations.
Comparison with Similar Patents
- International Patents: Similar compounds may be patented in other jurisdictions such as US or Europe, with comparable structures.
- Chinese Patent Families: Multiple filings in China and elsewhere suggest strategic patenting to secure regional rights.
Major Players and Competitors
- Pharmaceutical Companies: Likely applicants include Chinese biotech firms or multinational giants operating in China.
- Research Institutions: May act as assignees or licensors.
Patent Filing Trend Analysis
- There has been a surge in pharmaceutical patent filings in China post-2009, aligning with China's national priorities in biotech innovation.
- Strategic filings protect market share, R&D investments, and enable licensing negotiation.
Implications for Stakeholders
For Innovators and R&D Firms
- Freedom to Operate (FTO): Conduct a comprehensive patent landscape analysis to ascertain potential infringement.
- Patentability and Novelty: Ensure new compounds or methods sufficiently differ from the claims of CN100480275.
For Patent Holders
- Defense Strategies: Erect robust claims to prevent easy workaround.
- Licensing Opportunities: Leverage patent rights for strategic partnerships or monetization.
Legal Considerations
- The scope defined by the claims may allow for narrow or broad infringement assessments.
- Validity challenges could focus on prior art references that disclose similar compounds or methods.
Conclusion and Key Takeaways
- Scope of CN100480275 centers on specific chemical compounds, their salts, stereoisomers, and potential therapeutic methods, with claims structured to maximize protection.
- The patent landscape indicates active patenting within China's pharmaceutical sector, with strategic filings by local and international entities.
- The claim boundaries are pivotal; broad claims extend rights to similar compounds, while narrow claims afford focused protection.
- Potential challenges include prior art opposition based on existing compounds or methods, emphasizing the importance of continuous patent landscaping.
- Stakeholders should perform diligent freedom-to-operate assessments and monitor ongoing patent activity to navigate this landscape effectively.
Key Takeaways
- Claims Formality: The precise language and scope determination in CN100480275 dictate infringement risk and patent strength.
- Strategic Positioning: Understanding the landscape aids in securing competitive advantages or avoiding infringing activities.
- Broader Patent Trends: The patent exemplifies China's emphasis on securing rights over chemical compounds at a national level, reflecting increasing innovation maturity.
- Legal Robustness: Maintaining the patent's validity involves vigilant prior art searches and potential patent term extensions or amendments.
- Market Impact: The patent's scope can influence licensing deals, R&D direction, and market exclusivity strategies in China.
FAQs
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What is the primary focus of patent CN100480275?
It relates to specific chemical compounds, their salts, stereoisomers, and potentially their therapeutic applications.
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How broad are the claims in this patent?
The claims are structured to encompass both the core chemical entities and their derivatives, salts, and stereoisomers, offering a broad protective scope.
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Can similar compounds bypass this patent?
Possibly, if they differ significantly in chemical structure or fall outside the scope of the claims. Detailed claim comparison and prior art analysis are required.
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What is the patent landscape in China for similar pharmaceuticals?
China exhibits a rapidly expanding patent landscape, with numerous filings in medicinal chemistry, indicating heightened competition and innovation.
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How can a patent holder enforce rights based on CN100480275?
By conducting infringement analyses, monitoring competitor activity, and possibly initiating legal proceedings if unauthorized use occurs.
References
[1] Chinese Patent Office, Patent CN100480275, Full Specification, 2010.
[2] World Intellectual Property Organization (WIPO), Patent Landscape Reports on Pharmaceuticals in China.
[3] Chinese Patent Law, Articles relevant to scope and claims.
