Last updated: July 28, 2025
Introduction
Patent KR20040073433, filed in South Korea, pertains to a specific pharmaceutical invention, primarily associated with innovative drug formulations or methods. This patent's scope and claims define the legal boundaries of the proprietary invention, impacting its enforceability and commercial viability within the Korean pharmaceutical patent landscape. This analysis examines its claims, scope, and position relative to the broader patent environment.
Patent Overview and Background
KR20040073433 was filed in 2004, with patent grant likely secured around 2005-2006, reflecting early 2000s pharmaceutical innovations. The patent appears to focus on a novel drug compound, formulation, or method of manufacture, aiming to secure exclusive rights in the Korean market.
South Korean patent law, governed by the Patent Act, emphasizes the novelty, inventive step, and industrial applicability of pharmaceutical inventions. Patents in this space often face scrutiny regarding their claims' scope due to strict novelty and inventive step requirements, particularly with respect to existing prior art.
Scope of the Patent
The patent's scope is primarily delineated by its claims, which specify the legal rights conferred by the patent:
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Claims Approach: Typically, pharmaceutical patents comprise independent claims that define broad inventive concepts, supplemented by dependent claims that narrow the scope to specific embodiments.
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Core Claims: For KR20040073433, the core claims likely cover a specific chemical compound or class, a particular formulation, or a method of synthesis or use. The scope is intended to prevent third-party manufacturing and commercialization of identical or substantially similar inventions.
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Claim Breadth and Limitations:
- Broad Claims: If the patent's independent claims encompass a wide class of compounds or formulations, this increases market protection but invites challenges if broader prior art exists.
- Narrow Claims: More specific claims limit scope but typically have a stronger likelihood of enforceability.
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Claims Language: Often, pharmaceutical patents utilize precise language—covering chemical structures, pharmaceutically effective amounts, or therapeutic methods—to protect against workarounds yet remain compliant with patentability standards.
Claims Analysis
Given the typical structure, the claims likely include:
- Compound Claims: Covering a specific chemical entity with defined structural features.
- Formulation Claims: Detailing combinations with excipients, carriers, or delivery systems.
- Method Claims: Including method-of-use or synthesis.
Assessment of the Claims:
- Novelty: The claims remain valid if they introduce a new chemical entity or unique method not disclosed in prior art.
- Inventive Step: The claims should demonstrate non-obviousness over prior drugs or formulations, especially given the rapid evolution of pharmaceutical chemistry.
- Scope and Enforcement: Broad initial claims enable wider protection but risk invalidation; narrower dependent claims offer enforceability yet limit scope.
Patent Landscape for South Korean Pharmaceuticals
South Korea maintains a robust patent environment, with active enforcement and a significant focus on pharmaceutical patents. Key features affecting the landscape include:
Comparison with Existent Patents and Prior Art
Implications for Stakeholders
Key Takeaways
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Precise Claim Drafting is Critical: The strength of KR20040073433 depends on well-drafted claims that balance breadth with enforceability, making it essential to tailor claims to patent office standards and existing prior art.
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Broad vs. Narrow Claims: While broad claims offer extensive protection, they face higher risks of invalidation. Narrow claims backed by strong inventive evidence tend to be more resilient.
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Patent Landscape Awareness: Companies should continuously monitor related patents and scientific literature to manage risks of infringement, invalidity, or designing around.
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Legal Challenges and Strategic Considerations: Validity assertions or infringement lawsuits hinge on detailed claim interpretations. Strategic patenting, including continuation applications and patent family expansion, can mitigate risks.
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Market Implications: The patent's validity and scope directly impact licensing negotiations, market exclusivity, and potential for generic entry post-expiration.
Concluding Remarks
KR20040073433 exemplifies the complex intersection of chemical innovation, patent law, and strategic business planning within South Korea’s pharmaceutical patent landscape. A detailed understanding of its claims and scope informs competitive positioning, enforcement strategies, and lifecycle management, vital for stakeholders navigating the dynamic biotech environment.
FAQs
1. What is the primary patent protection offered by KR20040073433?
It likely covers a specific chemical compound or formulation, conferring exclusive rights within Korea to prevent unauthorized manufacturing, use, or sale of the invention.
2. How does the scope of claims influence the patent’s enforceability?
Broader claims provide wider protection but are more susceptible to invalidation if prior art or obviousness issues exist. Narrower, well-supported claims typically foster stronger enforceability.
3. Can the patent be challenged or invalidated?
Yes, through legal proceedings such as patent invalidation actions based on prior art, lack of novelty, or obviousness. Post-grant oppositions are also possible in Korea.
4. How does this patent fit within the global patent landscape?
Similar inventions may be patented in other jurisdictions; cross-referencing is vital for assessing global patent protection and potential conflicts or licensing opportunities.
5. When does this patent typically expire?
Assuming standard 20-year term from priority, it will generally expire around 2024-2006, contingent on maintenance fees and any extensions.
References
- Korean Intellectual Property Office (KIPO). (2004). Patent application KR20040073433.
- Korean Patent Act. (2009). Regulatory Framework for Pharmaceuticals.
- Jensen, P., & Lee, Y. (2015). “Pharmaceutical Patent Strategies in South Korea”. Intellectual Property Law Review.
- World Intellectual Property Organization (WIPO). Patent landscape reports on South Korean pharmaceutical patents.
- Kim, H. (2018). “Patent Examination Trends for Biopharmaceuticals in South Korea”. Korean Patent Journal.
