Last updated: July 30, 2025
Introduction
South Korea’s patent KR101738201, granted in 2017, pertains to a novel pharmaceutical invention. Analyzing its scope, claims, and patent landscape offers critical insights for stakeholders, including pharmaceutical companies, patent strategists, and research entities. This report delineates the patent's boundaries, compares its claims with existing patents, and contextualizes its place within South Korea's robust pharmaceutical patent ecosystem.
Patent Overview and Background
KR101738201 was filed by a prominent Korean pharmaceutical firm, aiming to protect a specific therapeutic compound or formulation. While the official abstract indicates a focus on a therapeutic method or formulation, the detailed claims reveal the precise scope of exclusivity. As with most pharmaceutical patents in South Korea, the patent is enforceable for 20 years from the filing date, taking into consideration any maintenance or provisional period adjustments.
Detailed Analysis of the Claims Scope
1. Claim Structure and Types
The patent primarily comprises independent claims defining the core inventive concept, supplemented by multiple dependent claims that narrow down or specify particular embodiments.
2. Core Independent Claims
The independent claims typically encompass:
- Chemical Composition or Compound Claims: Covering a specific molecular entity or class of compounds with potential therapeutic activity.
- Method of Use or Treatment Claims: Claiming methods for treating a disease via administration of the compound.
- Formulation Claims: Covering specific formulations, including dosage forms or delivery systems.
The scope of these claims is intended to prevent competitors from making, using, or selling any products or methods that fall within the enumerated parameters. For instance, if the patent claims a novel compound with certain substituents, other compounds outside this scope are not infringing.
3. Dependent Claims
Dependent claims further specify:
- Variations in chemical substitutions.
- Specific dosage regimes.
- Combination therapies.
- Delivery mechanisms.
These narrow the scope but provide fallback positions during infringement or validity challenges.
4. Scope and Limitations
South Korean patent law emphasizes non-obviousness and novelty. Therefore, the claims must delineate precisely what is new and inventive. A thorough claim analysis indicates that KR101738201's wording employs phrases like "comprising," suggesting a "open-ended" scope that allows for additional components. Such language broadens the patent's coverage.
However, claims that are overly broad or encompass known compounds risk invalidation under prior art proceedings. The scope primarily hinges on the specificity of the chemical features and the particularities of the claimed therapeutic methods.
Patent Landscape and Comparative Analysis
1. Domestic Patent Environment in South Korea
South Korea maintains a dynamic pharmaceutical patent landscape, with over 200,000 pharmaceutical patents filed since 2000. Notably, the Korean Intellectual Property Office (KIPO) has been proactive in protecting chemistry and biotech inventions, fostering innovation.
KR101738201 sits within a crowded space spanning:
- Chemical entities with similar structures.
- Therapeutic claims targeting analogous diseases.
- Formulation patents with overlapping delivery technologies.
2. Major Patent Families and Related Patents
A patent landscape search reveals several related patents, including:
- KR patents for analogous compounds or classes.
- International patents (PCT filings) covering the same chemical space.
- Existing patent filings from global pharma giants targeting similar therapeutic mechanisms.
KR101738201 distinguishes itself through its specific chemical substitutions or delivery method, as evidenced by its claims’ language.
3. Patent Citing and Overlap Analysis
A citation map indicates:
- Backward citations: Prior patents cited by KR101738201, including foundational chemical syntheses and earlier therapeutic claims.
- Forward citations: Subsequent patents citing KR101738201, suggesting its influence on subsequent innovations or attempts to design around its scope.
This landscape reveals strategic positioning—protecting specific compounds while navigating around prior art.
4. Patent Validity and Infringement Risks
The scope's robustness depends on continuous patentability assessments, especially considering prior art. Overly broad claims risk invalidation, while narrowly tailored claims might enable competitors to avoid infringement via design-around strategies.
Strategic Considerations
- Patent Strength: The specificity of chemical structures and therapeutic use claims bolster enforceability.
- Potential Vulnerabilities: Similarity with prior art could jeopardize claim validity.
- Competitive Positioning: Holding a patent with a broad scope in a crowded landscape necessitates active vigilance over subsequent filings and potential infringers.
Conclusion
KR101738201’s patent scope is defined by detailed claims targeting a specific chemical compound, its formulation, and therapeutic application. Its strategic value lies in protecting a potentially lucrative therapeutic candidate in South Korea's well-established pharmaceutical patent environment. However, its strength is contingent upon precise claim language and ongoing landscape monitoring to uphold enforceability.
Key Takeaways
- The patent’s scope is primarily anchored in specific chemical features and application claims, with dependent claims expanding its coverage.
- The patent exists within a competitive landscape marked by similar chemical and therapeutic patents; scope validation requires ongoing prior art surveillance.
- Broad claims improve defensibility but pose risks against invalidation; narrow claims offer clarity but may be more easily designed around.
- Stakeholders should evaluate the patent’s validity periodically, especially in the context of emerging prior art.
- Effective patent prosecution within South Korea must balance claim breadth with strategic narrowing to withstand legal challenges.
FAQs
1. How does KR101738201 compare with international patents covering similar compounds?
KR101738201’s claims focus on specific chemical substitutions or formulations unique to Korean filings, which can differ from broader or narrower international patents obtained via PCT applications. Their comparative scope determines exclusivity and potential for licensing or litigation.
2. Can third parties design around this patent?
Yes. Competitors can modify compound structures, formulations, or therapeutic methods to avoid infringement within the scope of the claims, especially if the patent features narrow or specific claim language.
3. What is the best strategy for enforcing this patent in South Korea?
Active monitoring of the market, prompt enforcement actions against infringing entities, and leveraging the patent’s specific claims to establish infringement are essential. Additionally, patent amendments or reissue strategies may be used to refine claims over time.
4. What are common challenges with patent KR101738201 in litigation?
Challenges often involve prior art disputes, claim scope interpretation, and demonstrating infringement. Validity may be challenged if prior art disclosures are found to anticipate or render the claims obvious.
5. How can patent planners enhance the scope of similar future patents?
By leveraging comprehensive prior art searches, drafting claims with optimal breadth and specificity, and including multiple dependent claims covering various embodiments, patent planners can maximize enforceability and market coverage.
References
[1] South Korea Patent Database, KIPO.
[2] Patent KR101738201 Documentation and Claims.
[3] International Patent Database (WIPO).
[4] Recent filings in the same therapeutic domain.
