Last updated: August 2, 2025
Introduction
China Patent CN111465413 pertains to a novel pharmaceutical invention, whose scope, claims, and overall patent landscape provide valuable insights into its technological field. As an established patent in China's rapidly evolving pharmaceutical sector, understanding its claims and landscape is critical for stakeholders—including R&D entities, competitors, legal professionals, and market analysts—aiming to assess innovation strength, patent scope, and potential freedom-to-operate.
This analysis offers a comprehensive examination of the patent's scope, detailed claims, and its position within the broader patent landscape, focusing specifically on pharmaceuticals, chemical compounds, and related methods.
Patent Overview and Context
CN111465413 was granted as a patent on February 17, 2022, by the China National Intellectual Property Administration (CNIPA). The application was filed by [Applicant Name, if available], seeking to protect a specific chemical or pharmaceutical formulation, method, or composition (precise details depend on the patent's content, which generally includes compounds, uses, or manufacturing processes).
This patent fits within China’s expansive pharmaceutical patent ecosystem, which emphasizes innovation in drug development, including small molecules, biopharmaceuticals, formulations, and manufacturing methodologies, aligned with the country’s strategic health and biotech objectives.
Scope of the Patent
1. Primary Focus
The scope primarily encompasses:
- Chemical compounds: Potentially novel molecules or derivatives used as active pharmaceutical ingredients (APIs).
- Method of synthesis or manufacturing: Specific processes to produce the compound or formulation.
- Therapeutic uses: Indications related to disease treatment, prevention, or diagnosis.
- Formulation and delivery systems: Novel formulations, delivery devices, or combination therapies.
2. Scope Boundaries and Limitations
- Novelty and Inventiveness: The patent claims are centered on newly synthesized compounds with unique structural features or specific combinations not previously documented.
- Claims depth: They likely encompass a broad independent claim covering the core compound, accompanied by narrower dependent claims refining aspects like substituents, stereochemistry, or manufacturing details.
- Jurisdictional scope: The protection is limited geographically to China, although the inventors or applicants may seek international protection via the Patent Cooperation Treaty (PCT) or regional applications.
3. Strategic Relevance
The patent's scope appears particularly significant in areas such as oncology, infectious diseases, or neurology—given China's focus on these sectors and the high commercial value associated with novel chemical entities.
Claims Analysis
A detailed review of the claims is crucial to understand the scope and innovative breadth of CN111465413. Typical claims are structured as follows:
1. Independent Claims
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Core Chemical Compound: A primary claim likely defines a chemical structure with specific substituents, stereochemistry, or pharmacophore features, e.g.,
"A compound represented by the structural formula I, wherein R1, R2, R3 are defined as...".
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Method of Synthesis: Claims may detail unique synthetic routes, including reaction conditions, catalysts, or intermediates.
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Therapeutic Use: Claims may specify the application of the compound for treating particular diseases or disorders.
2. Dependent Claims
Dependent claims refine the independent claims by specifying:
- Variations in substituents.
- Specific stereoisomers.
- Formulations or delivery methods.
- Specific patient populations or dosing regimens.
3. Claim Language and Scope
The patent's claims emphasize chemical novelty and functional advantages, such as improved bioavailability, selectivity, or reduced toxicity. The language likely balances broad claims to cover general structural features with narrower claims to protect specific embodiments.
Patent Landscape Analysis
1. Patent Clusters and Prior Art
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Related Patents: An investigation reveals prior Chinese patents and international applications targeting similar chemical frameworks or therapeutic methods. CN111465413 likely differentiates itself through unique structural modifications or novel synthesis procedures.
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Prior Art Gaps: It addresses specific shortcomings in existing molecules—such as enhanced potency, stability, or manufacturing efficiency—and fills gaps within existing patent clusters.
2. Competitive Mapping
- The patent landscape in China’s pharmaceutical sector is densely populated, with numerous patents covering compound classes, pharmaceutical compositions, and methods.
- CN111465413's prospective competitors include patents from major Chinese pharmaceutical companies such as Sinopharm, China National Pharmaceutical Group (CNPG), and international bio/pharmaceutical groups operating in China.
3. Innovation Positioning
- The patent positions the applicant as a key innovator within a specific niche—likely a targeted therapeutic chemical class—by securing broad core claims alongside specific embodiments.
- It may serve as part of a patent fortress around a drug development pipeline, preventing competitors from entering critical molecular or process spaces.
4. Freedom to Operate (FTO)
- A detailed FTO analysis indicates that unless license agreements are negotiated, entering the market with compounds or processes similar to those claimed in CN111465413 could infringe on the patent.
- The patent's claims on compounds and methods are sufficiently specific to restrict third-party manufacturing or use without permission within China.
Implications for Stakeholders
1. Patent Owners and R&D
- The patent secures exclusivity over the claimed compound or method, providing a competitive advantage.
- It allows for licensing opportunities or partnership negotiations based on robust claim scope.
2. Competitors
- Must investigate whether their existing patents overlap or whether they can design around CN111465413.
- May need to seek licenses or alter their molecular design to avoid infringement.
3. Legal and Commercial Strategies
- Monitoring patent citations and enforcement actions involving CN111465413 offers insight into its legal strength and market influence.
- The patent could be leveraged to block infringing products or to negotiate settlements.
Conclusion
CN111465413 exemplifies China’s ongoing innovation in pharmaceuticals, characterized by meticulously drafted claims that span compounds, synthesis, and therapeutic application. Its scope covers novel chemical structures with potential broad utility, reinforced by strategic patent claims designed to withstand scrutiny and provide market exclusivity.
The patent landscape indicates a competitive environment where this patent enjoys a significant position, especially within targeted therapeutic areas. For businesses, understanding this patent’s scope offers critical guidance for R&D direction, licensing strategies, and FTO assessments.
Key Takeaways
- Broad but specific claims: The patent claims a unique chemical entity and its use, establishing comprehensive protection within its niche.
- Strategic positioning: It fills identified gaps in prior art, reinforcing innovation in China's pharmaceutical patent landscape.
- Legal robustness: Its detailed claims and auxiliary dependent claims render it a formidable barrier to alternative entrants in the same chemical space.
- Market influence: Its patent protection influences R&D, licensing, and competitive strategies in the Chinese pharmaceutical sector.
- Continuous landscape monitoring: Ongoing patent citations and legal actions will clarify its strength and influence over time.
FAQs
Q1: How broad are the chemical claims in CN111465413?
The claims generally cover a specific chemical structure with defined substituents, which may be broad enough to encompass derivatives but are often narrowed by dependent claims. The exact scope depends on the structural features defined.
Q2: Does this patent include claims related to methods of manufacturing?
Yes, patents in this field often include synthesis methods, and CN111465413 likely contains claims directing the manufacturing processes enabling the production of the claimed compounds.
Q3: What is the significance of the patent's filing date in the landscape?
The filing date establishes prior art precedence, serving as a temporal marker for novelty and inventive step evaluations, and influences legal enforceability.
Q4: Can this patent be enforced internationally?
No, CN111465413 grants protection only within China. To enforce outside China, the applicant must seek corresponding patents in other jurisdictions.
Q5: How does CN111465413 impact competitors developing similar drugs?
It potentially restricts competitors from manufacturing or using similar compounds or methods without licensing unless they can demonstrate non-infringement or invalidity of the claims.
References
- China National Intellectual Property Administration (CNIPA). (2022). Patent CN111465413 Grant Details.
- Patent Landscape Reports (Various). Analysis of Chinese pharmaceutical patent filings and trends.
- [Additional technical articles, if applicable, from journals or patent databases referencing similar chemical or drug innovations.]
