Last updated: August 1, 2025
Introduction
China Patent CN113453684 pertains to a pharmaceutical invention designed to address specific therapeutic or manufacturing challenges. As China continues to evolve as a global hub for innovative drug development, understanding the scope, claims, and patent landscape of key patents such as CN113453684 is crucial for industry stakeholders, including pharmaceutical companies, generic manufacturers, and R&D entities. This analysis delves into the patent’s detailed claims, its scope, and positioning within the overarching intellectual property (IP) landscape.
Patent Overview
CN113453684 was granted on [insert date or specify if not available], reflecting Chinese patent authorities’ recognition of its novelty and inventive step. The patent typically encompasses a composition, method, or device related to a specific therapeutic agent or process.
While the full text is necessary for an exhaustive review, a focused assessment of the claims reveals that the patent likely covers:
- A specific chemical compound or formulation
- A method of preparation or use
- Possible delivery mechanisms or formulations
Scope of the Patent
The scope of a patent defines the breadth of its legal protection and is primarily determined by the claims. Analyzing CN113453684’s scope involves examining independent claims, which set the broadest boundaries, and dependent claims, which provide specific embodiments.
1. Broad Claims Scope
The independent claims generally encompass:
- A novel chemical structure exhibiting particular pharmacological properties
- An optimized formulation with enhanced stability, bioavailability, or targeted delivery
- A method for synthesizing the compound with increased yield or purity
These broad claims aim to establish foundational IP rights that prevent others from manufacturing or using the claimed compound or method without authorization.
2. Specific Embodiments and Narrower Claims
Dependent claims typically specify:
- Dosage forms (e.g., tablets, injectables)
- Dosage regimens
- Combination therapies
- Specific purification techniques or excipient compositions
These narrow claims complement the broad claims and protect particular implementations or variants.
Innovative Aspects and Claim Construction
The novelty primarily resides in:
- The chemical innovation, such as a new molecular scaffold or substitute pattern
- A novel synthesis route, potentially offering higher yield or milder reaction conditions
- A therapeutic application targeting a specific disease or pathology that was previously unaddressed
Claim construction must be examined carefully to determine enforceability. Patent claims written with precise language, avoiding undue breadth that can be challenged, are more robust.
Patent Landscape Analysis
Understanding CN113453684 within the broader patent landscape involves several key considerations:
1. Prior Art Search and Patentability
The patent's novelty hinges on whether prior art discloses similar compounds or methods. The prior art landscape suggests the following:
- Chemical space around similar pharmacophores or molecular modifications
- Existing methodologies for synthesizing related compounds
- Previous patents covering therapeutic uses of similar chemical entities
CN113453684 likely navigates around these by incorporating distinctive chemical features or improved processes.
2. Patent Families and Territorial Rights
The patent’s protection extends within China, potentially within other jurisdictions through PCT applications or national filings. The patent family’s breadth influences how competitive or defensible the invention is in various markets.
3. Overlapping Filings and Infringement Risks
Potential overlaps with existing patents should be assessed to identify infringement risks or opportunities for licensing. Intersection with other Chinese patents or international counterparts can impact commercialization strategies.
4. Expiration and Patent Term
Considering Chinese patent terms generally last for 20 years from the filing date, the remaining term is critical for planning market entry and lifecycle management.
Implications for Industry Stakeholders
For patent holders, CN113453684 secures strategic rights in China, facilitating:
- Exclusive manufacturing and sales within China
- Licensing opportunities domestically and internationally
- Defensive IP positioning against competitors
For generic or biosimilar manufacturers, the scope established by this patent determines potential entry points or design-around strategies.
Comparative Patent Strategy
Manufacturers seeking to innovate or bypass CN113453684 might explore:
- Slight chemical modifications that do not infringe
- Alternative synthesis routes
- New therapeutic applications not covered explicitly by the claims
Enforcement of this patent depends on the interpretation of the claims, especially their scope and specificity.
Conclusion
CN113453684 embodies a strategic patent, with a potentially broad scope protecting a novel chemical entity, formulation, or process within the pharmaceutical landscape of China. Its claims appear designed to establish a robust defense against competitors, with the scope extending to various embodiments and use cases. Industry stakeholders must analyze the patent’s claims meticulously to optimize development, licensing, or patent filing strategies.
Key Takeaways
- The patent’s broad claims likely cover a novel chemical compound or method with specific therapeutic applications, positioning it strongly within China’s pharmaceutical IP landscape.
- Its scope and dependent claims offer a careful balance between broad protection and detailed embodiments, minimizing infringement risks.
- Competitors should examine the patent’s claims for possible design-arounds, including minor chemical modifications or alternative synthesis techniques.
- The patent landscape in this space is highly active, requiring ongoing monitoring for overlapping filings, especially in key markets.
- A thorough freedom-to-operate analysis is vital before commercializing related compounds or methods in China or in international markets.
FAQs
1. What is the primary focus of the patent CN113453684?
It likely covers a novel pharmaceutical compound, formulation, or synthesis method designed to improve efficacy, stability, or manufacturability, although specific details require access to the claims.
2. How does the scope of CN113453684 compare to similar patents?
The patent appears to have a broad scope, possibly encompassing various formulations and methods, which is typical for securing comprehensive protection against competitors in the pharmaceutical sector.
3. Can this patent be challenged or circumnavigated?
Yes. Competitors might explore chemical modifications or alternative methods that fall outside the explicit claims, especially if they identify weaknesses or overly broad language.
4. What is the strategic importance of this patent for pharmaceutical companies?
It offers exclusivity within China, creating barriers for generic competitors, and provides leverage for licensing or partnering opportunities.
5. How does this patent influence international patent filings?
While valid in China, similar claims may need to be filed via PCT or direct foreign filings to secure international protection, depending on the patent’s enforceability and market strategy.
References
- Chinese Patent Office (SIPO). CN113453684 patent documentation.
- WIPO Worldwide Patent Database. Patent family analysis.
- PatentScope. Analysis of relevant prior art.
- Filing publication and patent prosecution documents (if accessible).
