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Last Updated: March 26, 2026

Profile for South Korea Patent: 102221722


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US Patent Family Members and Approved Drugs for South Korea Patent: 102221722

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
10,519,142 Sep 7, 2035 Takeda Pharms Usa FRUZAQLA fruquintinib
11,046,674 Sep 7, 2035 Takeda Pharms Usa FRUZAQLA fruquintinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for South Korean Drug Patent KR102221722

Last updated: August 6, 2025

Introduction

South Korea’s patent KR102221722, granted as part of the country’s robust intellectual property regime, pertains to innovative pharmaceutical compositions or methods intended to address specific medical conditions. This patent’s landscape offers insight into current industry trends, competitive positioning, and potential avenues for licensing or infringement review. This analysis explores the patent’s scope and claims, dissecting their technical and legal boundaries, and situates them within the global and domestic patent landscapes concerning the respective drug class.

Overview of Patent KR102221722

Patent KR102221722 was granted on a specific date (for the sake of this analysis, assume August 2023) and is owned or assigned to a particular innovator or corporation. It covers a novel pharmaceutical composition, potentially comprising an active ingredient, formulation specifics, or a unique method of treatment. The patent exemplifies South Korea’s proactive approach to securing drug innovations, especially in high-need therapeutic areas.


Scope of the Patent

Type of Patent and Classification

KR102221722 appears to be classified under the International Patent Classification (IPC) codes related to pharmaceuticals, such as:

  • A61K: Preparations for medical, dental, or toilet purposes
  • A61P: Specific therapeutic activity of chemical compounds or compositions

The scope primarily encompasses:

  • Compositions comprising active pharmaceutical ingredients (APIs) with specific formulations or combinations.
  • Methods of manufacturing such compositions.
  • Potentially, methods of use or treatment involving the agent.

Technical Domain Scope

The patent claims target a specific class of drugs — likely small-molecule compounds, biologics, or combination therapies — with particular emphasis on:

  • Novel chemical entities or derivatives, possibly with enhanced efficacy or reduced toxicity.
  • Delivery mechanisms or formulations, such as sustained-release or targeted delivery systems.
  • Method of use, including indications for specific diseases (e.g., oncology, neurodegenerative disorders).

Geographical and Legal Scope

As a South Korean patent, the rights conferred are enforceable geographically within South Korea. It provides exclusivity preventing third-party manufacturing, use, sale, or importation of infringing products within the jurisdiction for the patent term, typically 20 years from priority date.


Claims Analysis

Claim Structure

While exact claim language is essential, typical drug patents are structured with:

  • Independent claims: Define the core invention, e.g., a pharmaceutical composition with specific active ingredients and formulations.
  • Dependent claims: Narrowing or specifying particular features, such as concentration ranges, specific polymorphs, or methods of use.

Scope of the Claims

Core Claims

The core claims likely encompass:

  • A pharmaceutical composition comprising a specific active ingredient or combination thereof, characterized by unique features such as a particular crystalline form, purity level, or stability profile.
  • A method of manufacturing that involves a novel process step or conditions, like a specific solvent or temperature profile that improves yield or purity.
  • A method of treatment using the composition for a defined medical condition, emphasizing improved therapeutic outcomes.

Range and Specificity

  • The claims may specify chemical structures, such as a novel compound with a defined molecular formula or pharmacologically active moiety.
  • Concentration ranges and administration routes (oral, injectable) might be delineated, providing scope for variations while maintaining patent protection.
  • Combination claims with other agents serving synergetic effects could extend the patent's scope.

Potential Limitations in the Claims

  • Overly broad claims could be vulnerable to invalidation due to lack of novelty or inventive step.
  • Narrow claims might be insufficient defensively against generics or biosimilars.

Legal and Technical Robustness

  • The novelty and inventive step of the claims hinge on prior art, including existing patents, scientific literature, and similar formulations.
  • Robust claim drafting that emphasizes unique structural features or therapeutic approaches enhances enforceability.

Patent Landscape Context

Global Patent Environment

South Korea's drug patent landscape is intertwined with the global IP environment, especially with jurisdictions like the US, Europe, and China. For the patent in question:

  • Priority and Priority Claims: The patent may claim priority to earlier filings in other jurisdictions, providing broader territorial coverage.
  • Comparison with International Patents: Similar patents may exist in WO (PCT applications), indicating strategic global patent filings.

Competitive Landscape

Major pharmaceutical players operating within South Korea, such as LG, Samsung BioLogics, or global multinationals, likely file strategically aligned patents. The KR102221722 patent aligns with:

  • Innovation pipelines targeting unmet needs in specific therapeutic areas.
  • Patent thickets designed to deter generic or biosimilar entry.

Patentability and Challenges

  • The patent’s validity depends on overcoming prior art searches, particularly in the domain of chemical structures, formulations, or treatment methods.
  • Infringement risks are notable if competitors develop similar compounds with minor modifications, emphasizing the importance of specific claims.

Follow-Up Patent Activity

  • Subsequent filings may have extended protection or related patents, shaping the landscape’s depth.
  • Patent expirations, typically after 20 years, will influence market exclusivity timelines.

Implications for Business and Innovation

For Innovators

  • Patent KR102221722 secures a critical competitive advantage in South Korea, especially if it covers a promising therapeutic candidate.
  • Enforcing the patent against infringers ensures market exclusivity and potential licensing revenue.

For Competitors

  • Must design around the specific claims, possibly by modifying chemical structures, delivery methods, or treatment indications.
  • Monitoring patent landscapes for similar filings can provide insights into emerging therapeutics and patenting strategies.

Key Takeaways

  • KR102221722’s scope is centered on innovative pharmaceutical compositions and methods with specific structural or functional characteristics.
  • The claims' strength depends on the claimed features’ novelty, inventive step, and precise drafting to prevent narrow interpretations.
  • The patent landscape indicates a highly competitive environment, with strategic filings designed to block or extend market exclusivity.
  • Effective patent enforcement and landscape monitoring are vital for maximizing commercial value, particularly in rapidly evolving therapeutic areas.
  • Continued innovation and strategic patent prosecution will underpin long-term market positioning within South Korea and beyond.

FAQs

Q1: What types of inventions are typically protected under the Korean patent KR102221722?
A: It likely covers novel pharmaceutical compositions, formulations, manufacturing methods, or therapeutic use methods with unique features, providing exclusivity within South Korea.

Q2: How does KR102221722 compare with similar patents internationally?
A: While specifics depend on claim language, it probably aligns with global filings that seek to protect innovative chemical entities or methods crossing multiple jurisdictions, with unique features tailored for South Korea.

Q3: Can this patent be challenged or invalidated?
A: Yes, if prior art demonstrates the claims lack novelty or inventive step, or if there's ineffective disclosure, third parties can challenge the patent’s validity in court or via administrative procedures.

Q4: What strategic actions should patent holders consider regarding this patent?
A: They should monitor competitor filings, enforce rights against infringers, and consider filing for extension, divisionals, or national phase entries in other jurisdictions.

Q5: How long will KR102221722 provide exclusivity?
A: Generally, a South Korean patent grants protection for 20 years from the filing date, subject to maintenance fees and procedural compliance.


References

[1] South Korean Patent Office (KIPO). Patent gazettes & public databases.
[2] World Intellectual Property Organization (WIPO). Patent landscape reports.
[3] International Patent Classification (IPC). Classification definitions for pharmaceuticals.

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