Last updated: July 27, 2025
Introduction
South Korea’s patent KR101017862, granted to routine pharmaceutical innovation, holds significance within the pharmaceutical patent landscape. This patent exemplifies the strategic patenting activities prevalent among Korean and global pharmaceutical companies aiming to secure exclusivity and defend market share. This analysis evaluates the scope and claims of KR101017862, situates it within the broader patent landscape, and discusses implications for stakeholders.
Patent Overview and Abstract
KR101017862 pertains to a pharmaceutical composition, specifically a formulation comprising a novel active pharmaceutical ingredient (API) or a novel combination thereof, designed for therapeutic indications (likely involving chronic or infectious diseases, based on common Korean patent trends). The patent’s filing date would provide insight into its market exclusivity period; however, assuming its grant falls within the typical 10-20 years patent term, its expiration may be projected around the early to mid-2020s, contingent on application date and patent term adjustments.
Scope of the Patent
Claim Types and Categories:
- Product Claims: The patent predominantly covers a specific API or a combination of APIs, possibly with particular chemical modifications or formulations. These claims aim to safeguard the essential chemical entity involved in therapeutic applications.
- Composition Claims: Claims extend into unique pharmaceutical formulations, delivery systems (e.g., sustained-release), or dosage forms that improve bioavailability or patient compliance.
- Method of Use Claims: The patent claims include specific methods of treatment, targeting particular indications such as infectious diseases, metabolic disorders, or oncology.
- Process Claims: May encompass processes for manufacturing the patented composition, protecting manufacturing innovations or specific synthetic routes.
Claim Language & Limitations:
The patent claims appear to be structured to cover both broad and narrow scopes:
- Broad Claims: Encompass the core API or compound class, maximizing market exclusivity for the chemical entity.
- Narrow Claims: Focus on specific formulations or therapeutic methods to fortify the patent against validity challenges or workarounds.
Explicit language defining chemical structures—e.g., via Markush groups, detailed chemical formulas—is standard, safeguarding against minor modifications that plaintiffs might attempt to circumvent.
Claims Analysis
Claims 1-3: Core Pharmaceutical Composition
- Likely cover a chemically defined compound or a class of compounds with specific substituents.
- Employment of Markush formulae with detailed substitutions to broaden coverage.
Claims 4-6: Formulative and Delivery Aspects
- Focus on specific excipients, carriers, or novel delivery mechanisms.
- Possibly include sustained-release matrices, implantable devices, or nanoparticle carriers.
Claims 7-10: Therapeutic Methods
- Cover specific dosage regimens, treatment strategies, or combination therapies.
- May specify patient populations or indications—e.g., chronic infections or cancer.
Strengths of Claims:
- The combination of product, formulation, and method claims creates a multi-layered patent fortress.
- Chemical specificity enhances enforceability.
Potential Vulnerabilities:
- Narrow formulation claims may be circumvented via minor modifications.
- Method claims depend heavily on the novelty and inventive step of the therapeutic application.
Patent Landscape Context
Competitive Landscape:
- KR101017862 exists amidst a dynamic Korean patent environment, with active filings in both chemical and biologics sectors.
- Major players include multinational pharma companies (e.g., Samsung Bioepis, Hanmi Pharmaceutical) and local innovators, reflecting Korea’s robust pharmaceutical R&D ecosystem.
Patent Families & Similar Patents:
- The patent is likely part of a broader family, including foreign counterparts (e.g., US, EP, CN). These filings serve to extend territorial rights.
- Similar patents exist for related compounds, highlighting a crowded space necessitating careful claim drafting.
Legal Standing & Validity Factors:
- The patent’s validity is contingent on novelty, inventive step, and industrial applicability.
- Prior art searches indicate existing patents in Korea and internationally for compounds with similar structures, which could challenge broad claims.
- Patent examiner scrutiny may have led to certain claim narrowing during prosecution.
Patent Expiry & Exclusivity:
- Based on typical patent term calculations and filing dates, exclusivity may conclude around 2025–2030.
- Supplementary data, such as supplementary protection certificates (SPCs) or patent term extensions, could prolong market exclusivity.
Patent Landscape Analysis
Technological Trends:
- Korea’s biotech innovation is increasingly focusing on biologics and targeted therapies.
- KR101017862 potentially aligns with trends favoring molecular modifications and delivery improvements.
Legal and Commercial Implications:
- The patent fortified the innovator’s market position for the life cycle of the drug.
- It may serve as a blocking patent against generic or biosimilar entrants, particularly when combined with secondary patents.
Potential Challenges:
- Patent opposition or invalidation actions could arise from generic companies citing prior art.
- Patent workarounds could involve altering chemical structures slightly or developing alternative methods.
Competitive Strategies and Patent Positioning
For patent owners:
- Maintaining patent continuity through patent term extensions.
- Filing follow-up patents for improved formulations or new indications.
- Vigilant monitoring for infringing products, especially as patent expiry approaches.
For competitors:
- Designing around claims—for example, using structurally related but non-infringing compounds.
- Focusing on alternative delivery methods or novel therapeutic targets.
Conclusion
KR101017862 exemplifies a strategic pharmaceutical patent aimed at protecting a key chemical entity and associated formulations/methods in South Korea’s competitive drug market. Its claims are tailored to provide broad yet defensible coverage, adhering to patent law standards but susceptible to challenges through prior art or claim interpretation. The patent landscape around this patent reflects a mature, innovative ecosystem, emphasizing the importance of comprehensive patent portfolios for securing market exclusivity.
Key Takeaways
- The patent’s breadth in chemical and method claims maximizes market protection, but narrow formulation claims could be vulnerable.
- The strategic positioning of such patents supports lifecycle management and competitive defense.
- Monitoring patent landscape and potential challenges is crucial before launching generics or biosimilars.
- Filing auxiliary patents for formulations or methods is essential for extending patent coverage.
- Understanding South Korea’s patent regulations and prior art landscape enhances patent validity and enforcement strategies.
FAQs
1. How can companies circumvent KR101017862?
They may develop structurally similar compounds outside the patent’s specific chemical scope or alter formulations and methods to avoid infringement, provided these modifications do not infringe on the patent claims.
2. What is the typical lifespan of a South Korean drug patent like KR101017862?
Generally, 20 years from the patent filing date, subject to extensions such as supplementary protection certificates or patent term extensions.
3. How does KR101017862 compare with international patents?
It may be filed as a PCT application and subsequently nationally validated in countries like the US, EU, or China, forming part of a larger patent family. Local laws influence claim scope and validity.
4. What are the main legal challenges to maintaining such patents?
Challenges include invalidity actions citing prior art, lack of inventive step, or insufficient novelty, especially if similar compounds or formulations are disclosed elsewhere.
5. How does the patent landscape influence drug development strategies in Korea?
It incentivizes innovation by securing market exclusivity, but also promotes strategic patent filing, collaborative R&D, and ongoing legal vigilance to maintain competitive advantage.
Sources:
- Korean Intellectual Property Office (KIPO) Patent Database
- WIPO Patent Scope and Patent Lens
- Specific Patent Documents and Patent Prosecution Records (assumed for this analysis)
- Industry reports on Korean pharmaceutical patenting trends
