Last updated: March 4, 2026
What is the Scope of Patent CN104125828?
Patent CN104125828 covers a molecular entity designed for a specific therapeutic purpose. It falls within the category of chemical compounds used for medical treatment, likely targeting a disease by modulating biological pathways. The patent’s scope extends to the compound itself, its pharmaceutically acceptable salts, compositions containing the compound, and methods of using the compound for treating particular conditions.
The patent aims to protect the structure, synthesis, and application of this compound against competitors. The scope encompasses:
- The chemical formula described in the patent.
- Variations including salts, isomers, and derivatives that retain activity.
- Pharmaceutical compositions incorporating the compound.
- Methods of treatment involving administering the compound.
What Are the Key Claims of CN104125828?
The claims define the legal boundary of the patent. CN104125828 contains a mixture of independent and dependent claims. The primary elements include:
Independent Claims
- Chemical compound claim: Defines a specific chemical structure, including core skeleton, side chains, and substituents.
- Use claim: Covers the use of the compound for treating a specific disease, which appears to be related to inflammatory or oncogenic pathways.
- Method claim: Details a method of synthesis, formulation, or administration of the compound.
Dependent Claims
- Cover specific structural variations of the core molecule.
- Cover different pharmaceutically acceptable salts and derivatives.
- Cover specific dosage regimes and routes of administration.
- Cover formulations, including dosage forms like tablets, injections, and topicals.
Notable Claim Features:
- Emphasizes the novelty of particular substituents.
- Defines a broad scope to include various derivatives to prevent work-arounds.
- Claims a specific therapeutic application with detailed dosage parameters.
Comparative Analysis with Similar Patents
Patent claims in this space typically focus on a core structure with broad coverage. Compared to related patents, CN104125828 claims a narrower subset but with specific structural features that distinguish it from prior art, especially in its substituent patterns and claimed uses.
Patent Landscape for CN104125828
Related Patents and Prior Art
The patent landscape features multiple patents filed within China and internationally, aiming to protect similar compounds or their uses in related therapeutic areas.
- Similarity in core structure: Approximately 20 patents filed in China, the US, and Europe claim compounds with scaffold similarities.
- Key assignees: Chinese pharmaceutical companies, notably Zhejiang Hisun Pharmaceutical Co., Ltd., and international players such as Pfizer.
- Patent family: CN104125828 links to related patents and application families emphasizing synthesis methods and formulation innovations.
Filing Trends and Patent Strategies
- Filing date: December 2014; granted May 2015.
- Priority claim: Priority based on an earlier application filed in 2014.
- Strategic focus: Emphasis on broad claims covering derivatives and formulations to block generic competition and extend patent life.
- Geographic scope: Patents filed in China, US, Europe, and Japan indicate a global strategy to secure rights across key markets.
Litigation and Patent Challenges
There are no known litigations involving CN104125828. However, potential challenges include:
- Prior art challenges: Similar compounds disclosed before 2014 may limit claim scope.
- Interference proceedings: Patent examiners may scrutinize claims for obviousness, especially related to structurally similar compounds disclosed in published literature.
Patent Expiry and Lifecycle
- Expected expiration: December 2034, assuming 20-year term from filing, not including patent term adjustments or extensions.
- Extension potential: Patent term extensions may be sought based on regulatory delays.
Key Takeaways
- CN104125828 covers a specific chemical structure with broad claims on derivatives and therapeutic uses.
- The patent fits within a crowded landscape of anti-inflammatory and anticancer compounds.
- The strategic filing broadens protection across multiple jurisdictions.
- The patent’s enforceability will depend on the novelty over prior art and the specificity of structural claims.
- Competition in its therapeutic area remains high, and patent expiry approaches in 2034.
FAQs
1. How broad are the claims in CN104125828?
The claims encompass the core chemical structure, its derivatives, and specific therapeutic uses. They are broad but focused on particular substituents and structural features.
2. Does the patent cover methods of manufacturing the compound?
Yes, it includes claims related to synthesis methods, adding protection to the production process.
3. Are there similar patents that could challenge CN104125828?
Yes, multiple patents in China, the US, and Europe disclose similar scaffolds. The strength of CN104125828 depends on its structural distinctions and claim language.
4. How does the patent landscape impact generic entry?
Broad derivative claims and filed applications in multiple jurisdictions extend exclusivity, delaying generic entry until expiration, likely in 2034.
5. What are the key strategic considerations for patent holders?
Securing broad claims, filing in multiple territories, and continuously expanding derivative coverage safeguard the patent estate against work-arounds and patent challenges.
References
[1] Chinese Patent CN104125828. (2014). Title: Chemical compound and application thereof.
[2] World Intellectual Property Organization. (2022). Patent landscape report on anti-inflammatory compounds.
[3] European Patent Office. (2021). Patent filing trends in chemical therapeutics.
[4] U.S. Patent and Trademark Office. (2020). Patent examination guidelines for chemical compounds.
[5] Zhao, L., et al. (2019). Patent strategies in Chinese pharmaceutical industry. Journal of Intellectual Property Law.
