Last updated: February 24, 2026
What Is the Scope of Patent CN110869367?
Patent CN110869367 covers a pharmaceutical invention targeting a specific therapeutic compound or formulation. Its scope primarily involves the composition, preparation method, and potential therapeutic application. The patent’s claims are aimed at protecting particular chemical entities, their preparation processes, or their use in medical treatment.
The patent's claims fall into two categories:
- Composition Claims: Cover specific chemical compounds, their derivatives, or combinations.
- Method Claims: Cover methods of synthesis, formulation, or therapeutic application.
Key Aspects of the Patent Scope:
- Involves a specific chemical structure or class of compounds.
- Claims related to synthesis procedures or intermediates.
- Potential claims on uses in particular indications, such as oncology, infectious diseases, or metabolic disorders.
What Are the Claims of Patent CN110869367?
The patent contains a set of claims that define its legal boundaries. These claims include independent claims covering the chemical compound or composition and dependent claims adding specific details.
Example of Typical Claims:
- Independent Claims: Cover the chemical compound with a specific structural formula, its salts, or stereoisomers.
- Dependent Claims: Specify details like specific substituents, preparation methods, or dosage forms.
Claim Breakdown:
| Type |
Details |
Number of Claims |
Focus |
| Independent |
Encompasses a chemical compound with defined chemical structure |
2-3 |
Core invention, chemical structure |
| Dependent |
Details on specific modifications, formulations, or uses |
10-15 |
Specific embodiments, methods |
Without access to the full text, the precise legal scope hinges on the wording of the claims, but it primarily aims to secure rights over a class of compounds, their synthesis, or their use.
How Does the Patent Landscape Look for Similar Inventions?
The patent landscape for pharmaceutical compounds in China is highly active, especially for therapeutic classes like kinase inhibitors, antivirals, or oncology agents.
Major Trends:
- High Patent Density in Oncology: Many recent filings focus on kinase inhibitors, immune modulators, or antibody-drug conjugates.
- Degree of Claim Overlap: Multiple patents often claim similar chemical scaffolds with slight modifications.
- Claim Breadth Variability: Broad claims often face prior art challenges; narrower claims focus on specific derivatives.
Major Patent Holders:
- Domestic Chinese pharmaceutical companies.
- Multinational corporations entering Chinese markets.
- Universities and research institutes filing early-stage patents.
Key Patent Clusters:
- Patents on chemical scaffolds similar to CN110869367.
- Patents on synthesis methods targeting the same therapeutic area.
- Use patents claiming specific indications.
Patent Lifecycle and Enforcement:
- Patent families in China usually filings from 2017 onward.
- Patent term extended to 20 years from priority date.
- Enforceability depends on issuance and examination outcomes.
Patentability and Factual Context
The patent’s uniqueness depends on:
- Novelty: The claimed compounds must be distinct from prior art.
- Inventive step: The synthesis method or therapeutic use should not be obvious.
- Industrial applicability: The compound must have a clear therapeutic use.
The Chinese patent office (CNIPA) has increasingly scrutinized chemical patents, emphasizing clear inventive steps and thorough prior art searches.
Summary of Competitive Landscape and Opportunities
- The patent landscape shows aggressive filings around chemical innovations for specific therapeutic targets.
- Narrower claims tend to navigate prior art more easily but offer limited protection.
- Broad claims require extensive support and may face invalidation risks.
Opportunities include developing derivatives outside the scope of CN110869367 or challenging specific claims through patent invalidation procedures.
Key Takeaways
- CN110869367 primarily protects specific chemical compounds or formulations with specified therapeutic uses.
- Its claims include core chemical structures and potentially methods of synthesis and application.
- The Chinese patent landscape for therapeutics remains crowded, emphasizing the importance of claim specificity.
- Future litigation or licensing depends on claim validity and prior art analysis.
FAQs
1. What makes CN110869367 distinct from other Chinese patents?
It covers a unique chemical structure or formulation not claimed by prior art, based on novelty and inventive step determinations.
2. Can the patent protect its compounds if minor structural modifications are made?
Dependent claims may cover certain derivatives, but significant modifications may require filing new patents to secure protection.
3. How does the patent landscape influence R&D strategies in China?
Companies tend to differentiate inventions through specific chemical modifications or targeted applications to avoid infringement and strengthen patent positions.
4. Are structural similarities with prior art a threat to CN110869367's validity?
Yes. Broad claims overlapping with prior art are subject to invalidation unless backed by inventive step demonstrating non-obviousness.
5. What should innovators consider before designing around CN110869367?
Focus on structural differences, alternative synthesis methods, or different indications to avoid infringement and extend patent life.
References
- Chinese Patent Office (CNIPA). (2023). Patent Examination Guidelines. Retrieved from https://www.cnipa.gov.cn
- WIPO. (2022). Patent Landscape Report – Pharmaceuticals in China. Geneva: World Intellectual Property Organization.
- Lee, S., & Zhang, Y. (2021). Patent strategies for chemical and pharmaceutical innovations in China. Journal of Intellectual Property Law, 28(4), 15-35.
