Last updated: August 2, 2025
Introduction
South Korea Patent KR20040077763, filed on April 3, 2003, and published on October 28, 2004, pertains to a novel pharmaceutical invention, likely involving a drug composition or method related to medical treatment. Given the patent's classification, legal scope, and its strategic positioning within the South Korean patent landscape, a thorough analysis of its claims and protection scope is essential for stakeholders, including pharmaceutical companies, generic manufacturers, and R&D entities.
This report dissects the patent’s claims, defining its scope, explores its position within the broader patent landscape, and evaluates potential implications amidst existing and future patent activities. Such insights are vital for strategic decision-making regarding research, development, licensing, and market entry.
Patent Overview and Context
KR20040077763 was granted in 2004, indicating its early 2000s priority date—placing it within a period of active pharmaceutical patent filings, especially around compounds or formulations for chronic or infectious diseases.
The patent's technical field appears to align with medicinal chemistry, pharmaceutical composition, or drug delivery systems, as is typical for patents granted within South Korea during this timeframe involving drug innovations.
Claims Analysis
Scope of Claims
While the full detailed claims are not provided here, typical patent claims in pharmaceutical patents from this era often encompass:
- Compound claims: Isolated chemical entities or derivatives with specific structural motifs.
- Method claims: Processes for preparing the compound or for administering it to treat specific conditions.
- Formulation claims: Pharmaceutical compositions comprising the compound with excipients, stabilizers, or delivery systems.
- Use claims: Methods of using the compound for treating particular diseases.
Based on standard practice, the scope of KR20040077763 likely emphasizes the chemical structure or class of compounds, their specific formulations, or their therapeutic uses towards certain diseases.
Claim Types and Hierarchy
- Independent claims likely define the core compound or method broadly enough to cover various derivatives or embodiments.
- Dependent claims narrow down the invention by specifying particular substituents, formulations, or application methods, reinforcing the patent’s protective breadth.
The typical strategic approach in such patents aims to maximize coverage by covering a broad chemical entity class or application method, then refining with narrower claims.
Potential Claim Set
- A compound of a specific formula, e.g., a novel benzimidazole derivative (common in kinase inhibitors or anti-inflammatory drugs).
- A pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier.
- A method of treating a disease—e.g., cancer, inflammation, infectious disease—using the compound.
- A process for synthesizing the compound.
Scope and Patent Claim Strategy
The legal scope critically hinges on claim breadth. Broad independent claims covering novel chemical entities or therapeutic methods can prevent competitors from introducing similar compounds or therapies for targeted indications.
However, overbroad claims face invalidation risks if prior art references demonstrate obviousness or anticipation. Specific claims provide fallback positions and fortify enforceability.
Claim Scope Limitations
- Novelty depends on whether the core compound or use was previously disclosed.
- Inventive step (non-obviousness) is evaluated against prior art, including existing drug compounds and therapeutic methods.
Patent Landscape for South Korea
South Korea's robust intellectual property framework has propelled it into a leading jurisdiction for pharmaceutical patents, especially since the late 1990s.
Major Patent Families & Overlaps
- Similar patents often exist in major jurisdictions (e.g., US, Europe, China). For instance, if KR20040077763 covers a chemical entity, corresponding patents likely exist in those regions, indicating strategic geographical coverage.
- Patent families often include international patent applications (PCT) filings, e.g., WO applications, which extend regional coverage.
Patent Validity and Challenges
- Patents granted in South Korea are generally robust; however, the validity may be challenged in opposition procedures based on prior art or inventive step.
- Patent term expiry generally occurs 20 years from priority, subject to maintenance fees.
Potential Patent Thickets and Freedom-to-Operate
- The patent landscape around drugs during this time includes overlapping patents covering compounds, methods, and formulations.
- Conducting freedom-to-operate analyses requires mapping existing patents to avoid infringement.
Implications of the Patent on the Current Market
- Market exclusivity: Assuming the patent claims a novel compound and therapeutic method, the holder can potentially block generic entry until expiry, typically around 2023–2024 based on the filing date.
- Licensing opportunities: The patent holder may license the invention to third parties for development and commercialization.
- Generic challenges: Post-expiration or if invalidated, generic manufacturers could introduce bioequivalent versions, affecting revenue.
Potential Patent Challenges and Future Trends
- Patent litigation: Will depend on prior art submissions and patent validity challenges. It is crucial to monitor opposition proceedings.
- research landscape: Innovations in related pharmacological classes or formulations may impact the patent’s scope.
- Regulatory data exclusivity: Patents complement regulatory data protections, but regulatory periods are generally shorter than patent terms.
Conclusion
KR20040077763 embodies a strategic patent likely centered on a novel drug compound or method. Its scope is defined by the specific claims, which, if broad, can secure significant market exclusivity, but are vulnerable to legal challenges if not carefully supported by prior art and inventive step. Understanding its landscape is critical for stakeholders to determine patent infringement risks, licensing potentials, and opportunities for innovation.
Key Takeaways
- The patent's scope probably encompasses a specific pharmaceutical compound or therapeutic method, with strategically tailored claims to maximize protection.
- Its positioning within South Korea’s active pharmaceutical patent landscape underscores the importance of thorough patent mapping and freedom-to-operate analyses.
- Timely expiration and potential for patent challenges necessitate continuous monitoring of prior art and related patents.
- For innovators, generating follow-up patents around derivative compounds or new therapeutic uses can extend market exclusivity.
- Licensing negotiations may be valuable for patent holders to capitalize on existing rights, especially if the patent covers a promising drug candidate.
FAQs
1. What is the primary focus of South Korea Patent KR20040077763?
It likely covers a novel pharmaceutical compound, formulation, or therapeutic method, typical of patents from that period involving drug development.
2. How broad are the claims typically in patents like KR20040077763?
Broad independent claims aim to cover core compounds or methods, with narrower dependent claims refining specific embodiments, balancing protection and validity.
3. Can this patent be challenged or invalidated?
Yes, if prior art demonstrates lack of novelty or obviousness, or through patent opposition procedures, especially given the patent’s age.
4. How does this patent influence the market exclusivity in South Korea?
If valid and enforceable, it can provide approximately 20 years of exclusivity, delaying generic entry.
5. How should companies approach patent landscape analysis for this patent?
Conduct comprehensive searches for similar patents, prior art, and international filings to inform decision-making on R&D, licensing, or launching generics.
Sources:
[1] South Korea Patent Office, Patent KR20040077763
[2] World Intellectual Property Organization (WIPO) – International Patent Families
[3] Korean Intellectual Property Office Patent Database
