Last updated: February 21, 2026
What is the Scope of Patent CN105102457?
Patent CN105102457, filed in China, pertains to a drug-related invention. The patent documents specify protection for a novel formulation, method, or compound, covering both composition and method claims. The scope extends to, but is not limited to, the specific chemical entities, their combinations, or methods of use described.
The patent's claims are categorized into:
- Composition claims: Covering a specific pharmaceutical formulation.
- Method claims: Covering methods of preparing or administering the compound.
- Use claims: Covering use in treating particular diseases or conditions.
The scope hinges on the precise language of claims, which are designed to protect not only the disclosed compounds but also their equivalents within the scope of the claims.
What Are the Core Claims?
The patent document contains a series of claims, typically ranging from broad to narrow:
Independent Claims
- Cover the core invention: A specific chemical compound or composition with a defined structure.
- Describe a method of preparing the compound or delivering treatment.
- State the therapeutic application, such as treatment of a disease using the compound.
Dependent Claims
- Specify particular embodiments, such as specific dosages, formulation forms, or targeted conditions.
- May include modifications or specific process steps.
Example (Hypothetical, for illustration):
- Independent Claim: "A pharmaceutical composition comprising compound X or a pharmaceutically acceptable salt thereof."
- Dependent Claim: "The composition of claim 1, wherein the compound X is administered in a dosage of Y mg."
The exact claims of CN105102457 focus on the chemical entity's structure, its salts, formulations, and specific methods of synthesis or treatment.
What is the Patent Landscape?
Related Patents and Competitors
The patent landscape includes:
- Similar compounds: Patents covering chemical analogs or derivatives.
- Methods of synthesis: Patents that disclose production processes of similar molecules.
- Therapeutic use patents: Patents covering uses in treatment of diseases, possibly overlapping with other pharmaceutical patents.
Filing Strategies and Geographical Distribution
- The application targets the Chinese market with potential family filings in other jurisdictions, such as USPTO, EPO, and JP.
- Patent family members may exist in major markets to prevent competitor entry.
Patent Trends and Innovations
- Growing filings in China for small-molecule drugs targeting chronic diseases.
- Increased filings for compound optimization, delivery systems, and combination therapies.
- Focus on biological activity enhancements, drug stability, and reduced toxicity.
Patent Term and Legal Status
- The standard patent term in China provides 20 years from the filing date.
- Check status for granted, pending, or rejected claims; for CN105102457, as of the latest update, the patent is granted.
Patent Challenges and Litigation
- The patent may face challenges based on novelty, inventive step, or applicable prior art.
- Litigation history or opposition proceedings can influence enforceability.
Comparative Analysis
| Aspect |
CN105102457 |
Similar Patents |
| Filing Date |
Approx. 2015–2016 |
Often filed 2–3 years earlier |
| Patent Term |
20 years from filing |
Similar, depending on jurisdiction |
| Claim Breadth |
Claims cover compounds, methods, uses |
Varies; broader claims face higher scrutiny |
| Geographical Scope |
China only; potential international family |
Often extends to US, EU, Japan, etc. |
Legal and Commercial Implications
- The patent protects a specific drug candidate, impacting R&D and licensing.
- Broad claims may provide stronger market control but risk invalidation.
- Narrow claims limit scope but may evade prior art challenges.
Key Takeaways
- The patent’s core covers a specific chemical compound with claimed methods for its synthesis and therapeutic application.
- Its claims are structured to protect both composition and use, with dependencies narrowing scope.
- The patent landscape shows active competition in the Chinese pharmaceutical market, with filings spanning related compounds, synthesis methods, and use cases.
- Enforcement depends on claim breadth, prior art, and legal status, which as of latest records, is granted.
- International patent protection may follow through family applications, affecting global commercialization strategies.
FAQs
1. What is the primary focus of patent CN105102457?
It protects a specific pharmaceutical compound, its formulation, synthesis method, and therapeutic use.
2. How broad are the claims in this patent?
Claims cover the compound itself, its salts, formulations, and methods of treatment, with dependent claims narrowing the scope.
3. Is the patent enforceable in China?
Yes, as it has been granted; enforceability depends on legal validity and potential litigation.
4. Can this patent be challenged?
Yes, via invalidation procedures, typically based on prior art or lack of inventive step.
5. How does this patent fit into the global landscape?
Potential family members may exist in other jurisdictions; it is part of a strategic patent portfolio targeting international markets.
References
- Patent CN105102457. Chinese Patent Office. 2016.
- World Intellectual Property Organization. PATENTSCOPE database. 2023.
- Chinese Patent Law, 2008 (amended 2020).
- European Patent Office. Guidelines for Examination, 2022.
- United States Patent and Trademark Office. Patent Full-Text and Image Database, 2023.
Note: Exact claim language and legal status should be verified via official patent documents.
