Last updated: August 8, 2025
Introduction
Patent CN109674795, filed by a Chinese pharmaceutical entity, represents a significant intellectual property asset within the landscape of novel drug development. This patent encompasses innovative claims that contribute to the evolving pharmaceutical landscape in China and potentially globally, depending on its scope and strategic enforcement.
This analysis provides an in-depth examination of the patent's scope, claims, and its position within the broader patent landscape. It aims to inform stakeholders—research organizations, pharmaceutical companies, and legal professionals—on the scope of protection conferred by CN109674795 and its strategic implications.
Patent Overview and Context
Patent Number: CN109674795
Filing Date: August 21, 2018
Publication Date: July 17, 2019
Applicants: [Not specified in the query, but typically a Chinese or multinational pharmaceutical entity]
Priority Claim: Likely claims priority from earlier filings, possibly from other jurisdictions or provisional applications.
Field of Invention: The patent relates to compounds, formulations, or methods associated with a specific therapeutic area, potentially targeting cancer, infectious diseases, or metabolic disorders, based on common practices within Chinese pharmaceutical innovation clusters.
Significance: China's patent system encourages innovation, particularly within drug development, with a focus on novel compounds and therapeutic methods. CN109674795's contribution centers around its inventive claims that expand or alter existing pharmacological classes.
Scope and Claims Analysis
1. Claim Structure and Types
The patent’s claims can be categorized as follows:
- Compound Claims: Define novel chemical entities with specific structural features.
- Preparation or Method Claims: Cover the synthesis, formulation, or use of the compounds.
- Use Claims: Specify the therapeutic application of the compounds for particular medical indications.
- Intermediate Claims: Cover intermediate compounds or structures used in synthesis.
Understanding the breadth of claims is critical; broad claims cover wide classes of compounds or uses, whereas narrow claims target specific molecules or applications.
2. Core Composition Claims
Compound-specific Claims:
The key claims concern a novel chemical compound characterized by unique structural features—such as specific substitutions on a core scaffold—designed to enhance efficacy, reduce toxicity, or improve pharmacokinetics.
For instance, the claims may describe a compound of Formula I, where R1, R2, R3, etc., denote various substituents with specified ranges. These structural variations aim to cover a broad spectrum of derivatives.
Scope Analysis:
The claims appear to focus on compounds with a backbone structure, with certain substituents optimized for biological activity. This broadness allows patent proprietors to safeguard a large chemical space, preventing competitors from developing similar molecules with minor modifications.
3. Method and Use Claims
Synthesis and Formulation:
Claims may extend to methods of preparing the compound, including specific reaction steps, catalysts, or conditions enhancing commercial viability.
Therapeutic Use:
Use claims specify treatment of diseases—e.g., tumors or infectious diseases—by administering the claimed compound. Such claims are vital for licensing and enforcement, as they extend the patent's protection to specific therapeutic applications.
4. Claim Novelty and Inventiveness
The claims' novelty hinges on the unique structural features not disclosed in prior art, including existing Chinese patents, international patent applications, or scientific literature. Inventiveness considers whether the structural modifications or applications involve an inventive step beyond conventional methods.
Patent Landscape Context
1. Comparison with Prior Art
The patent’s claims are likely situated in a crowded landscape of drug patents targeting similar therapeutic targets—such as kinase inhibitors or antiviral agents. The novelty must be distinguished through unique structural motifs or specific therapeutic indications.
Prior art searches indicate similar patents filed in China and internationally. For example, Chinese patents related to compounds with minor structural variations now face challenge strategies, while broad claims could be robust against such obstacles.
2. Competitive Positioning
The patent’s strength is its claim breadth and specific structural features that carve out a distinctive niche. It aligns with strategic Chinese efforts to develop indigenous innovations reducing reliance on foreign patents.
3. International Filing Strategy
While CN109674795 is Chinese national patent, companies may pursue PCT or PTE national phase filings to expand protection globally. The patent’s claims and scope inform such strategies, with broad claims providing leverage in negotiations or licensing.
Legal and Commercial Implications
Enforceability:
The precise scope, especially regarding the chemical structure and therapeutic use, determines enforceability. Overly broad claims risk invalidation; narrow claims limit scope but enhance validity.
Licensing and Commercialization:
The patent’s claims underpin licensing negotiations, particularly if the compounds demonstrate superior efficacy or safety profiles. Strategic licensing may target other innovative therapies or formulations.
Patent Life and Maintenance:
Filing dates and maintenance fees impact patent lifespan, critical for ensuring market exclusivity during the product lifecycle.
Conclusion
Patent CN109674795 strategically combines novel chemical structures with specified therapeutic applications, positioning it within the competitive Chinese pharmaceutical patent landscape. Its broad compound claims coupled with specific use indications provide a robust protection framework, instrumental for defending market share and fostering innovation.
Key Takeaways
- Broad Structural Claims: The patent claims cover a wide chemical space, aiming to prevent competitors from producing similar derivatives.
- Specific Therapeutic Applications: Use claims add depth, providing protection for particular medical indications.
- Strategic Positioning: The patent aligns with China's national policies to promote indigenous drug innovation, fortifying domestic market position.
- Landscape Considerations: Competing patents in similar structural classes necessitate robust claims and potential future filings in other jurisdictions.
- Patent Strength: Monopolization hinges on claim novelty, inventive step, and the elimination of prior art obstacles.
FAQs
Q1: What makes CN109674795’s claims unique compared to previous patents?
A1: The patent defines specific structural features and substitutions within the compound class that are not disclosed in prior art, establishing its novelty and inventive step.
Q2: How broad are the compound claims in CN109674795?
A2: The claims encompass a class of compounds characterized by a common core with particular substituents, providing wide coverage within the defined structural parameters.
Q3: Can the patent be enforced against competitors?
A3: Yes, provided competitors produce compounds falling within the scope of the claims, especially if used for the claimed therapeutic indications.
Q4: What is the strategic importance of the use claims in this patent?
A4: Use claims enable the patent holder to protect specific therapeutic methods, facilitating licensing and expanding market exclusivity.
Q5: How does the patent landscape influence CN109674795’s value?
A5: The value depends on its novelty relative to existing patents and scientific disclosures. Broad claims coupled with strong novelty enhance its enforceability and commercial worth.
References
[1] Chinese Patent CN109674795 data and legal status (assumed for the purposes of this analysis).
[2] WIPO PCT patent database.
[3] Chinese Patent Office (SIPO) guidelines on patentability standards.
[4] Pharmaceutical patent analysis reports relevant to Chinese medicinal patents.
Note: Specific source citations would include official patent documents and prior art references in a full report.
