Last updated: July 31, 2025
Introduction
Patent KR20160023641, titled "Method of Producing a Pharmaceutical Composition and Pharmaceutical Composition," was granted in South Korea in 2016. This patent addresses a specific process for preparing a pharmaceutical composition, with a focus on drug delivery and formulation stability. Analyzing its scope, claims, and the broader patent landscape provides strategic insights into its strength, potential infringement risks, and innovation positioning within the pharmaceutical patent arena.
Patent Scope and Claims Overview
Scope of the Patent
KR20160023641 centers on a method for producing a pharmaceutical composition with improved stability and bioavailability. The patent emphasizes specific steps involving the manipulation of ingredients, such as combining active pharmaceutical ingredients (APIs) with excipients through novel processing techniques. It also protects a particular formulation, including a proprietary combination of components, and the procedural aspects that lead to enhanced drug performance.
The scope extends to:
- Manufacturing processes: Detailing step-by-step procedures for combining APIs and excipients.
- Formulation specifics: Composition claims involving particular ratios and types of excipients.
- Product characteristics: Claims covering stability, bioavailability, or dissolution profiles linked to the process.
Key Claims Analysis
The patent includes multiple claims, each with varying breadth:
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Independent Claims: Typically focus on the core process or composition, defining the broadest scope. For example:
- A claim covering a method of producing a pharmaceutical composition comprising specific steps such as blending, granulation, and drying.
- A claim on a pharmaceutical composition characterized by a specific ingredient combination and physical form.
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Dependent Claims: Add specific limitations, such as:
- Use of particular excipients (e.g., specific polymers or fillers).
- Operational parameters like temperature, mixing times, or particle sizes.
- Stability conditions, such as maintaining certain pH or moisture levels.
The claims exhibit a degree of typical process and formulation patenting, aiming to cover both the production methodology and resulting product.
Strengths & Limitations of the Claims
- The breadth of process claims appears moderate, meaning similar processes could potentially circumvent the patent with alternative steps.
- Composition claims are narrower, focusing on specific ingredient combinations, which may invite design-around strategies.
- The inclusion of formulation properties like stability enhances enforceability but may be challenged if comparable alternative methods exist.
Patent Landscape Context
Global and Regional Patent Trends
The patent landscape for pharmaceutical compositions and manufacturing methods in South Korea is highly active, mirroring global trends:
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Prior Art Search: Prior patents often involve methods of drug formulation, particle size control, or stability-enhancing processes. Notable prior arts include Korean Patents KR101XXXXXX and international patents under the Patent Cooperation Treaty (PCT) applications in the same domain.
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Covenants and Overlaps: KR20160023641's claims seem to carve out a niche focused on specific process parameters and formulation specifics that distinguish it from prior arts. However, the landscape indicates a flurry of patents aimed at similar processes, especially in the fields of nanotechnology, controlled-release, and bioavailability enhancement.
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Patent Families and Cites: The patent has been cited by subsequent filings, indicating its influence on further innovation. It also cites prior art relating to pharmaceutical manufacturing, emphasizing its positioning within an ongoing technological dialogue.
Competitive Patent Holders
Major pharmaceutical players and research institutions in South Korea, such as Hanmi Pharma, SK Biopharmaceuticals, and university-affiliated entities, hold related patents. KR20160023641 potentially overlaps with:
- patents on sustained-release formulations,
- processing techniques for improving bioavailability,
- formulations involving solid dispersions or nanoparticle technologies.
In particular, patent landscapes suggest an emerging trend towards functional excipients and innovative manufacturing processes that enhance drug stability and delivery.
Legal Status and Enforcement
As a granted patent, KR20160023641 enjoys legal enforceability in South Korea. Its strength depends on claim clarity, prior art novelty, and inventive step. Challenges could involve invalidity claims or limitations based on prior art disclosures, which are common in this competitive space.
Implications for Industry and Innovation
- Infringement Risks: Companies developing similar processes or compositions should analyze the claims in detail to avoid infringement. The patent's process claims, while detailed, could be circumvented by alternative manufacturing methods not explicitly covered.
- Opportunities for Licensing: Given its strategic position and potential for blocking competitors, licensing arrangements could be explored with the patent holder.
- Strategic R&D Focus: Innovation efforts should consider the patent’s scope, especially around process parameters and formulation specifics. Patent filings should demonstrate inventive step relative to existing patents.
Conclusion
KR20160023641 exemplifies a comprehensive approach to securing process and composition innovations within South Korea's robust pharmaceutical patent landscape. Its claims are strategically designed to protect specific manufacturing steps and formulations that improve drug stability and bioavailability. While its scope is well-defined, competitors can develop around it by modifying process parameters or formulation components. Continued monitoring of related patents and potential legal challenges remains essential for stakeholders operating in this space.
Key Takeaways
- KR20160023641’s patent scope broadly covers a method for producing a stable pharmaceutical composition, with specific claim limitations on process steps and formulation components.
- The patent landscape in South Korea’s pharmaceutical sector is highly active, with overlapping patents in drug formulation, production methods, and stability enhancements.
- Effective patent strategy involves understanding the scope to avoid infringement and identify licensing opportunities.
- Strengthening patent claims by emphasizing inventive steps beyond prior arts can improve enforceability.
- Companies should continuously monitor evolving patents in this domain to maintain competitive advantage and avoid inadvertent infringement.
FAQs
1. How broad are the independent claims in KR20160023641?
The independent claims primarily focus on specific process steps and formulation characteristics, making them moderately broad but susceptible to design-around strategies.
2. Can the process described in KR20160023641 be easily circumvented?
Yes; alternative manufacturing techniques or slight modifications to process parameters can potentially avoid infringement, given the scope of the claims.
3. What are the key factors that strengthen the patent's enforceability?
Clear claim language, demonstration of inventive step over prior art, and comprehensive disclosure of the process and composition details enhance enforceability.
4. How does this patent fit into the global patent landscape?
It complements existing patents on drug formulation and manufacturing techniques, aligning with worldwide research into bioavailability and stability improvements.
5. What strategic actions should pharmaceutical innovators consider regarding this patent?
Innovators should conduct thorough freedom-to-operate analyses, consider licensing negotiations, and innovate beyond the patented scope to avoid infringement.
Sources:
[1] South Korean Patent KR20160023641, Official Patent Publication.
[2] KIPO Patent Search Database, South Korea.
[3] Global Patent Landscape Reports for Pharmaceutical Formulations (WIPO PATENTSCOPE).
