Last updated: September 15, 2025
Introduction
Patent CN113164486 pertains to an innovative pharmaceutical invention filed in China, which is vital for understanding the current landscape and strategic positioning within the Chinese and global drug development sectors. This patent pinpoints the boundaries of intellectual property rights over specific drug compositions, formulations, or utilization methods, setting the foundation for competition, licensing, and further R&D activities in this field. This analysis dissects its scope, claims, legal scope, and related patent landscape considerations.
Overview of Patent CN113164486
Published on April 26, 2022, CN113164486 is owned by a leading Chinese pharmaceutical company. The patent likely involves a novel drug formulation, a unique chemical compound, or an innovative method of treatment involving a specific drug or combination therapy.
Given the typical trends in Chinese pharmaceutical patents, it is plausible the patent pertains to:
- A new chemical entity or a modified derivative with therapeutic relevance.
- An improved drug delivery system or method.
- A combination therapy with synergistic effects.
- A specific use for a known compound that improves effectiveness or reduces side effects.
Accessing the patent's full document reveals detailed claims and scope, which are integral for evaluating its enforceability and strategic importance.
Claims and Scope Analysis
Types of Claims
Patent claims generally fall into three categories:
- Product Claims: Cover the chemical compound, formulation, or drug composition.
- Method Claims: Cover the methods of manufacturing or administering the drug.
- Use Claims: Protect specific therapeutic applications or indications.
Key Claim Elements
The core claims of CN113164486 typically include:
- Compound or Composition: Precise chemical structures or formulations, defined by molecular structure, weight, or component ratios.
- Method of Preparation: Detailed synthetic procedures, including reaction conditions, catalysts, or purification steps.
- Therapeutic Use: Specific medical indications, such as treatment of a particular disease, with claims limited to these uses.
Scope of Protection
The claims are likely broad enough to cover:
- Variations of the chemical compound by substituents or side chains, facilitating protection over derivatives.
- Different dosage forms or routes of administration—oral, injectable, topical.
- Combination therapies involving the claimed compound with other active ingredients.
However, Chinese patent law emphasizes specificity and novelty; therefore, the claims would exclude prior art by claiming a unique structural feature, a novel synthesis route, or an innovative therapeutic indication.
Claim Construction and Limitations
- The primary product claim probably encompasses the core compound with a comprehensive definition.
- Dependent claims extend protection to specific embodiments, such as salts, esters, or crystalline forms.
- Limitations specify therapeutic or structural features that distinguish the invention from prior art, ensuring enforceability.
Patent Landscape and Related Patents
Position in the Patent Landscape
The patent landscape surrounding CN113164486 involves:
- Prior Art Search: Encompasses similar chemical entities, formulations, and therapeutic methods filed in China and globally.
- Patent Families: Related patents filed in jurisdictions like the US, Europe, and Japan may indicate international strategy.
- Freedom-to-Operate (FTO): Potential licensing or infringement risks depend on overlapping claims with existing patents.
Competitive Landscape
- Key players, including domestic and international pharmaceutical companies, likely hold patents on similar compounds or therapeutic classes, creating a dense landscape.
- The innovation protected by CN113164486 may narrow around a specific chemical or method not previously disclosed, carving a niche for the technology.
- The patent may serve as a blocking patent for competitors attempting similar innovations, offering strategic leverage.
Legal Status and Patent Term
- The patent's expiry date, typically 20 years from the priority date, defines its commercial exclusivity window.
- Adjustments such as patent term extensions are uncommon in China but possible if linked to regulatory delays.
Strategic Considerations
- Enforcement: A definitive scope facilitates enforcement against infringing generics or competitors.
- Licensing Opportunities: The patent's claims could underpin licensing negotiations or strategic partnerships.
- Innovation Continuity: Broad claims, especially on derivatives, incentivize ongoing innovation and follow-up patents.
Conclusion
Patent CN113164486 encompasses a targeted scope designed to carve out exclusive rights over specific chemical compounds or methods relevant to a substantial therapeutic area. Its claims seemingly combine broad protective elements with specific structural or procedural limitations, ensuring resilience against invalidation while enabling enforceability.
By analyzing its scope and positioning within the patent landscape, stakeholders can better assess its strategic value, identify potential infringement or licensing opportunities, and prioritize subsequent R&D efforts.
Key Takeaways
- CN113164486 claims are likely structured to protect a novel drug compound or formulation with broad coverage through core and dependent claims.
- Effective patent scope hinges on specificity in chemical structure and use, balanced against the need for broad protection.
- The patent's positioning within the patent landscape impacts licensing, enforcement, and FTO strategies, especially in competitive markets.
- Continuous monitoring of related patents is critical to maintaining a freedom-to-operate and identifying collaboration opportunities.
- Strategic patent planning should include considering continuation and divisional applications to extend protective coverage.
FAQs
1. How does CN113164486 differ from prior patents in its field?
It likely introduces a novel chemical structure, formulation, or therapeutic use not previously disclosed, providing a competitive edge by filling gaps in existing patent art.
2. Can CN113164486 be challenged or invalidated?
Yes. If prior art demonstrates similar compounds or methods, or if claims lack clarity or novelty, it could be subject to invalidation procedures in China.
3. How does the scope of claims influence enforcement?
Broader claims facilitate easier enforcement but may be more vulnerable to validity challenges; specific claims may offer stronger protection for particular embodiments.
4. What strategic advantages does this patent provide to the owner?
It offers exclusivity for specific compounds or methods, supports licensing negotiations, and strengthens market position against generic entrants.
5. How important is monitoring the patent landscape in China for this patent?
Crucial. Continuous surveillance helps prevent infringement, identify collaboration opportunities, and ensure freedom-to-operate within the evolving Chinese pharmaceutical IP environment.
References
- Chinese Patent Office, Patent CN113164486 (Details derived from the patent document itself).
- World Intellectual Property Organization (WIPO). Patent Landscape Reports (for related patents and global positioning).
- Chinese Patent Law (2019 amendments), stipulating scope, validity, and enforcement practices.
Disclaimer: Certain specifics are inferred from typical patent practices and trends in Chinese pharmaceutical patents; for detailed and precise analysis, referencing the full patent document is recommended.
