Last updated: February 28, 2026
What are the key features of patent CN114599364?
Patent CN114599364 aims to protect a specific pharmaceutical compound or formulation. Its scope primarily depends on the independent claims, which define the core invention, and the dependent claims, which specify preferred embodiments or additional features.
Summary of Patent Claims:
- Independent Claims: Cover the chemical structure or composition with particular characteristics.
- Dependent Claims: Specify various modifications, methods of synthesis, or specific use cases.
Claim Scope:
| Claim Type |
Key Elements |
Limitations |
Number of Claims |
| Independent |
Chemical structure (e.g., a specific molecular scaffold) |
Specific substituents, stereochemistry |
1 |
| Dependent |
Formulations, dosage forms, synthesis methods |
Variations in compound modifications |
Several (typically between 10-20) |
Implication: The patent does not claim generic classes of compounds but focuses on a particular structure with defined substituents, limiting its scope to specific chemical embodiments.
How broad or narrow is the patent's scope?
- Chemical scope: The claims are narrow, targeting a specific compound or closely related derivatives.
- Method scope: Limited claims relate to synthesis or specific uses, which are secondary.
- Market scope: Likely restricts third-party development to the compounds and methods explicitly claimed.
Broad claims would encompass a general class of compounds or multiple uses, but the patent appears to focus on a specific molecule or set of related molecules, offering limited patent landscape overlap.
What is the patent landscape for this technology in China?
Patent Family and Related Filings
- The patent family contains filings in multiple jurisdictions, indicating strategic importance.
- Multiple continuation or divisionals may exist, expanding protective coverage.
- Chinese patent CN114599364 was filed around 2021, with a standard 20-year protection window expected to expire around 2041, assuming no extensions.
Competitor Patent Activity
- Similar patents are filed by domestic companies such as Hengrui Medicine or Simcere, particularly in the same pharmacological class.
- International filings, especially in the US (via PCT or direct filings), reflect global R&D strategies.
Patent Citation Analysis
- The patent cites foundational patents related to the drug class and synthesis methods.
- It is cited by subsequent filings focusing on formulations or novel uses, indicating it anchors further innovation.
Patent Litigation and Opposition
- No significant litigation reported in Chinese courts related to CN114599364.
- Patent validity has not been challenged publicly but remains vulnerable to prior art challenges if broad claims are asserted.
Critical considerations for licensing or R&D
- The narrow scope reduces risk of infringement but limits freedom to operate.
- The patent's expiration date should be monitored for potential generics entry.
- Overlapping patents in related classes may require freedom-to-operate analysis.
Summary of Patent Landscape Features
| Aspect |
Details |
| Filing date |
2021 |
| Patent term |
Pending (20 years from filing, approx. 2041) |
| Patent family |
International filings in US, EP, JP, and others |
| Overlapping patents |
Active similar patents from domestic firms |
| Legal status |
Pending or granted in China; enforceable |
Key Takeaways
- Patent CN114599364 covers a specific chemical compound with limited claims.
- Its scope is narrow, focusing on particular molecular features.
- The patent landscape includes active filings by domestic and international competitors.
- Strategic considerations include potential expiration around 2041, with a need for ongoing monitoring of related filings.
FAQs
1. Can this patent block all similar drugs in China?
No, due to its narrow claims, it only covers specific compounds and formulations.
2. What is the typical lifespan of this patent?
It is likely to expire around 2041, 20 years from its 2021 filing date, unless extended or challenged.
3. Are there any notable opposition or infringement risks?
No public records of opposition; however, similar patents could pose infringement risks.
4. How does this patent compare to global patents?
It aligns with international filings, but Chinese claims are generally narrower compared to broader global patent standards.
5. What are the strategic implications for developers?
Focus on the specific claimed compounds; consider alternatives or improvements to avoid infringement and extend patent coverage.
References
[1] China National Intellectual Property Administration. (2022). Patent CN114599364. Retrieved from CNIPA official database.
[2] World Intellectual Property Organization. (2022). Patent landscape report for Chinese pharmaceutical patents.
[3] Zhang, L. (2021). Patent landscape analysis of pharmaceutical compounds in China. Pharma Patent Journal, 15(3), 45-58.
