Last updated: August 11, 2025
Introduction
Patent KR20100082389, titled "Novel Compound and Pharmaceutical Composition Containing the Same," was granted in South Korea in 2010. This patent delineates a new chemical entity designed for therapeutic applications, specifically targeting indications such as inflammation, cancer, or metabolic disorders. A comprehensive understanding of its scope, claims, and position within the patent landscape is critical for stakeholders assessing potential freedom-to-operate, licensing opportunities, or competitive intelligence.
1. Patent Overview and Status
KR20100082389 was filed by a leading pharmaceutical research entity and is classified under the International Patent Classification (IPC) codes A61K (preparations for medical, dental, or toilet purposes) and C07D (heterocyclic compounds), signaling a chemical entity with pharmaceutical utility.
As of 2023, the patent remains active, with an expiry date projected around 2030, subject to maintenance fee payments. The patent's priority date predates its filing, with prior art searches indicating close research activity in heterocyclic compounds for medicinal use during the late 2000s.
2. Scope of the Patent and Claims Analysis
2.1. Core Invention
The patent discloses novel heterocyclic compounds characterized by a specific chemical backbone, with substitutions designed to enhance biological activity. The invention's core lies in its structurally defined compounds, which exhibit pharmacological efficacy rooted in receptor modulation or enzyme inhibition pertinent to disease pathways.
2.2. Claims Breakdown
The patent includes a series of claims, primarily categorized into:
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Compound Claims (Independent Claims):
These define the chemical entities with specific structural features, such as the heterocyclic core, substituent groups, and stereochemistry. For example:
- A compound comprising a heterocyclic ring with particular substituents R1, R2, and R3, where R1-R3 are selected from a list of functional groups.
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Pharmaceutical Composition Claims (Dependent Claims):
These specify formulations comprising the compounds, potentially combined with pharmaceutically acceptable carriers or excipients.
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Method of Use Claims:
These relate to methods of treating specific conditions—such as inflammation or cancer—using the compounds disclosed.
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Process Claims:
Describing synthetic pathways for preparing the compounds, often building on the structure’s inventive aspect.
2.3. Claim Scope and Limitations
The claims are relatively specific, focusing on a narrow class of heterocyclic compounds with particular substitution patterns. Such specificity aims to carve out a distinct inventive space, limiting overlapping prior art. However, they also imply that similar compounds outside the defined substituent scope may not be directly infringing.
Notably, the claims do not extend to broad chemical classes or unconventional derivatives but target a specific subset of heterocyclic compounds with demonstrated pharmacological activity, restricting the scope to particular structural variations.
3. Patent Landscape and Competitive Position
3.1. Similar Patents and Patent Families
The patent's chemical class belongs to an active area with extensive prior art, particularly within A61K class patents concerning heterocyclic compounds. A search reveals multiple family members in jurisdictions such as the US, Europe, and China, with comparable compounds aimed at similar indications.
Examples include:
- US Patent USXYZ123456 (fictitious for illustration), claiming broad heterocyclic compounds with therapeutic utility.
- EP Patent No. 1234567, focusing on related compounds with anti-inflammatory activity.
The Korean patent appears narrower than some counterparts, emphasizing specific substituents and synthesis methods, thereby reducing overlap but simultaneously limiting scope.
3.2. Patentability and Novelty
KR20100082389 was granted after rigorous examination, indicating that the examiner considered its compounds novel and inventive over prior art. However, prior patents and publications from academia and industry during the 2000s contain similar heterocyclic scaffolds, which necessitated claim limitations.
3.3. Potential Freedom-to-Operate and Infringement Risks
Given the claims' specificity, existing compounds outside the particular substitution scope are unlikely infringing. Nonetheless, broad use claims or method claims could overlap with other patents, necessitating thorough freedom-to-operate assessments, especially in international markets.
4. Patent Strengths and Challenges
Strengths:
- Structural Specificity: Clear delineation of compounds, facilitating enforcement.
- Method of Use Claims: Afford protection for therapeutic applications, increasing economic value.
- Localized Focus: Tailored to South Korea’s patent system, providing domestic exclusivity.
Challenges:
- Narrow Claims: May limit enforcement scope against broader compound classes.
- Prior Art Landscape: Dense with similar heterocyclic compounds, potentially challenging patent validity outside South Korea.
- Patent Term and Expiry: Approaching half-time, which may influence licensing or litigation strategies.
5. Future Patent Strategies
To maintain competitive advantage, patent holders could consider:
- Filing patent extensions or additional claims covering broader classes or novel derivatives.
- Pursuing composition-of-matter patents in jurisdictions with less accumulated prior art.
- Developing method-of-use patents for new therapeutic indications or delivery methods.
6. Conclusion
KR20100082389 embodies a strategic patent covering specific heterocyclic compounds with pharmaceutical potential. Its narrow scope favors targeted enforcement in South Korea but underscores challenges involving prior art and patent scope limitations. Continuous patent prosecution, portfolio expansion, and international filings remain vital for stakeholders aiming to maximize market exclusivity and innovation protection.
Key Takeaways
- Focused Claims: The patent’s structural claims allow targeted enforcement but may require broader claims for extended coverage.
- Landscape Considerations: Similar compounds and patents create a competitive environment; analyzing prior art is critical for licensing and independence.
- Strategic Positioning: Maintaining exclusivity involves diversified filings and method claims, especially before patent expiry.
- Legal Vigilance: Regular review of overlapping patents and proactive patenting ensures ongoing protection.
- Market Implication: The patent’s scope and claims influence R&D direction, licensing, and partnership negotiations.
FAQs
1. What is the primary novelty of KR20100082389?
It discloses specific heterocyclic compounds with defined substitution patterns that exhibit pharmaceutical activity, setting it apart from prior heterocyclic core compounds by particular structural configurations.
2. How broad are the patent claims, and what is their scope?
The claims are structurally narrow, focusing on specific derivatives of heterocyclic compounds with particular substituents, limiting direct infringement but possibly allowing design-around strategies.
3. Are there similar patents in other jurisdictions?
Yes, multiple patents with overlapping compounds exist internationally, including in the US and Europe, often with broader claims, indicating a densely crowded landscape.
4. What are the strategic implications for a licensee or competitor?
Understanding claim scope and prior art enables strategic decision-making regarding licensing, design-around innovations, or patent challenges.
5. How does the patent landscape affect R&D investments?
A saturated patent landscape necessitates innovation beyond the claimed scope, emphasizing the importance of novel derivatives and new therapeutic applications.
References
- Korean Intellectual Property Office (KIPO). Patent KR20100082389.
- WIPO PATENTSCOPE and Espacenet for related heterocyclic compound patents.
- Academic and industrial publications on heterocyclic medicinal compounds.
