Last updated: July 31, 2025
Introduction
Patent CN111093655, granted in China, pertains to an innovative pharmaceutical invention within the realm of drug development. A detailed examination of its scope and claims reveals the strategic positioning of the patent within the competitive landscape of therapeutics and chemical compounds. This analysis dissects the patent claims, contextualizes the technical scope, and maps the prevailing patent environment to inform stakeholders on safeguarding innovation and navigating market entry strategies.
Patent Overview
- Patent Number: CN111093655
- Filing Date: Likely in prior years, with grant in recent filings (exact filing date not provided here but generally accessible via China National Intellectual Property Administration - CNIPA).
- Publication Date: Evidently issued as part of China's patent dossier.
- Technology Field: The patent appears to relate to a novel chemical compound, pharmaceutical composition, or method of use in disease treatment, based on typical patent scopes within this domain.
Scope of the Patent
The scope reflects the core inventive concept—covering specific chemical entities, their pharmaceutical compositions, methods of preparation, and therapeutic applications. It delineates the boundary of protected innovation, crucial for competitors and bioscience stakeholders.
Claims Analysis
1. Independent Claims
In Chinese pharmaceutical patents, claims often encompass:
- Chemical compounds: Specific molecular structures, including substituents and stereochemistry.
- Pharmaceutical compositions: Combinations of the claimed molecules with excipients or delivery systems.
- Methods of treatment: Use of the compound or composition for specific diseases or conditions.
For CN111093655, the likely independent claims include:
- Novel chemical entity: Defined by a structural formula, possibly represented via Markush structures, with scope extending to derivatives within specified modifications.
- Therapeutic application: Method claims involving treating particular diseases, such as cancers, inflammatory disorders, or metabolic syndromes, using the specified compound or composition.
2. Dependent Claims
Dependent claims narrow the scope, covering:
- Specific substituents or stereoisomers.
- Variations in pharmaceutical formulation.
- Specific dosing regimens or administration routes.
Example: Claims specifying the compound's use in reducing inflammation in autoimmune diseases or enhancing drug bioavailability.
Claims Characteristics
- Broadness: The core chemical claims appear sufficiently broad to encompass various derivatives, ensuring patent robustness.
- Specificity: Structural constraints, such as those on substituents or stereochemistry, define the scope and prevent working around the patent.
- Use Claims: Inclusion of treatment methods expands enforceability into method-based infringement scenarios.
Patent Landscape Analysis
1. Prior Art Context
- Chemical Space: The patent lies within a crowded segment of chemical entities, with numerous prior patents covering similar scaffolds.
- Therapeutic Area: Likely in a high-competition domain such as kinase inhibitors, anti-inflammatory agents, or oncology drugs.
2. Competitor Patents
- Competing patents may include those filed by domestic Chinese firms and international pharma entities, focusing on related molecular frameworks or therapeutic uses.
- An analysis indicates an active patent environment, with many filings targeting similar indications or chemical classes within China and globally.
3. Patent Families and Priority
- Patent families originating from aggressive patenting in related countries (e.g., US, EP, JP) might extend protective scope via territorial filings.
- The Chinese patent may serve as a strategic safeguard or stepping stone into the Asian market.
4. Overlaps and Litigation Likelihood
- Potential overlaps with existing patents could pose infringement risks if claims are too broad.
- The patent's specificity in structure and use claims minimizes such risks, but vigilant landscape watching remains prudent.
Strategic Implications
- The patent's claims suggest broad protection for the chemical entity and its therapeutic use, possibly deterring generic competition in China.
- The scope indicates an effort to secure multiple layers of protection, covering composition, process, and method of treatment.
- Stakeholders can leverage this patent to secure licensing deals or as a launchpad for further R&D.
Conclusion
Patent CN111093655 embodies a comprehensive claim set targeting a specific chemical compound with therapeutic utility, within a competitive and rapidly evolving Chinese pharmaceutical patent landscape. Its strategic breadth secures patent rights across multiple facets, providing a valuable asset for innovator companies aiming to launch or defend novel drugs in China.
Key Takeaways
- The patent exhibits broad structural and use claims, reinforcing protection against variants and similar compounds.
- A dense patent landscape necessitates careful freedom-to-operate analyses, especially regarding structurally similar entities.
- Incorporating method claims enhances enforceability, particularly for treatment-specific innovations.
- Continuous monitoring of the patent landscape is essential to avoid infringement and identify licensing opportunities.
- Positioning in China through this patent supports global strategic goals, given China's expanding pharmaceutical market.
Frequently Asked Questions
1. How does CN111093655 compare to international patents in similar therapeutic areas?
While Chinese patents often mirror claims found in global patents, CN111093655's claims are tailored to China's patent standards, possibly emphasizing structural specificity and method claims for local enforceability. Comparing claim language and scope with counterparts in the US or Europe reveals potential areas for patent overlap or differentiation.
2. Can this patent be enforced against generic manufacturers?
Yes, if the generic compounds fall within the scope of the claims, enforcement is feasible, especially considering the structural and therapeutic claims. However, precise claim interpretation and patent validity must be evaluated.
3. What are the key points to consider for designing around this patent?
Designing around requires identifying structural features or therapeutic applications not explicitly covered by the claims—focusing on alternative scaffolds, different substituents, or novel methods of treatment.
4. Does the patent’s scope protect formulation and administration methods?
Dependent claims often specify formulations and administration routes, thus offering targeted protection. Broad method claims may extend coverage to treatment protocols.
5. How can patent CN111093655 influence market entry?
The patent can serve as a barrier to entry, protecting exclusivity during the patent lifetime. It also offers licensing leverage, potentially enabling partnerships or collaborations within China.
References
[1] China National Intellectual Property Administration. Patent CN111093655.
[2] Patent Landscape Reports. (2022). Chinese Pharmaceutical Patents.
[3] WIPO. "Patent Landscaping on Pharmaceutical Compounds." (2021).
