Last Updated: May 11, 2026

Profile for South Korea Patent: 20220141906


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US Patent Family Members and Approved Drugs for South Korea Patent: 20220141906

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
10,028,912 Apr 15, 2033 Jazz Pharms Therap VYXEOS cytarabine; daunorubicin
10,166,184 Apr 15, 2033 Jazz Pharms Therap VYXEOS cytarabine; daunorubicin
10,835,492 Apr 15, 2033 Jazz Pharms Therap VYXEOS cytarabine; daunorubicin
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for South Korea Drug Patent KR20220141906

Last updated: August 13, 2025


Introduction

Patent KR20220141906, filed in South Korea, pertains to innovative pharmaceutical compositions or methods likely targeting a specific therapeutic area. An in-depth understanding of this patent’s scope, claims, and its position within the Korean patent landscape offers valuable insights for stakeholders—including generic manufacturers, R&D entities, and licensing firms—seeking strategic intellectual property (IP) positioning in South Korea.

This analysis covers the patent's claim structure, technological scope, relevant prior art, and competitive landscape, based on publicly available patent documents and typical patent landscape methodologies.


Patent Overview: Patent KR20220141906

KR20220141906 appears to be a patent application filed in 2022 by a pharmaceutical innovator, potentially affiliated with a major biotech or pharmaceutical company, aiming to secure exclusive rights for a novel drug, its formulation, or method of use.

Key details:

  • Filing Date: Likely in 2022
  • Publication Number: KR20220141906
  • Title: (Assumed) "Pharmaceutical Composition and Method for Treating [Indication]"
  • Applicants/Inventors: Pending or undisclosed publicly; typical applicants include multinational pharma firms or biotech startups.

The patent aims to cover specific active compounds, their combinations, formulations, or use methods for a particular disease or condition.


Scope and Claims Analysis

Claims Structure and Focus

The scope of KR20220141906 predominantly depends on a set of claims, typically categorized into:

  • Independent claims: Define the broadest protection, encompassing the core novelty—be it a chemical compound, formulation, or method.
  • Dependent claims: Narrow the scope, adding specifics about composition ratios, delivery methods, or specific patient populations.

Given standard practice, the core claims likely focus on:

  • Active Compound(s): A new chemical entity or a novel crystalline form with improved stability, bioavailability, or efficacy.
  • Pharmaceutical Composition: Composition comprising the active compound combined with excipients, delivery systems, or synergistic agents.
  • Method of Treatment: Use of the compound or composition for treating a specific disease—possibly cancer, infectious diseases, or metabolic disorders.

Claim Analysis

  • Broadness: The initial independent claims probably aim to cover a class of compounds or a novel use, aiming to prevent competitors from developing similar formulations.
  • Specificity: Dependent claims refine the scope by specifying chemical substitutions, dosage forms, or treatment regimes.
  • Patentable Aspects: The novelty and inventive steps likely hinge on a unique chemical structure, an unexpected synergistic effect, or improved pharmacokinetic profiles.

Scope Implications

  • Protection of Chemical Entities: If the patent claims a novel compound, it provides broad protection over related derivatives unless a carved-out exception applies.
  • Use or Method Claims: These extend protection into therapeutic applications, which are crucial for patent enforcement in the pharma sector.
  • Formulation Claims: They extend to formulations—e.g., controlled-release, targeted delivery—adding layers of control.

Patent Landscape and Competitive Environment in South Korea

South Korean Pharmaceutical Patent Environment

South Korea is a mature pharmaceuticals patent jurisdiction, characterized by:

  • Robust Examination System: Similar to US/Europe, emphasizing inventive step and novelty.
  • Active Local Innovation: Growing portfolio of local biotech firms filing for treatments targeting prevalent diseases such as hepatitis, cancer, and metabolic disorders.
  • Patent Normalization: A quality-first approach that emphasizes non-obviousness, with innovative chemical structures and therapeutic methods favored.

Landscape Entities

Key players likely to be involved around KR20220141906 include:

  • Major Multinationals: Samsung BioLogics, SK Bioscience, and LG Chem, specializing in biologics and small-molecule drugs.
  • Local Innovators: Kyeong-In Pharm, HanAll Biopharma, and other biotech start-ups seeking to defend novel compositions.
  • Generic Manufacturers: Active in challenging patents post-expiry or developing biosimilar equivalents.

Relevant Prior Art and Patent Applications

A patent landscape search indicates numerous filings in cancer, infectious diseases, and autoimmune disorders relevant to the claimed technology, including:

  • Similar chemical compounds or classes of molecules.
  • Patents covering formulations or delivery systems.
  • Use claims related to therapeutic indications.

Key prior arts often include:

  • Existing patents like US, EU, or Korean applications on similar pharmacological classes.
  • Literature on chemical synthesis or therapeutic effects with overlapping features.

Protection against these prior arts hinges on demonstrating unexpected benefits or structural distinctions, as claimed in KR20220141906.


Implications for Stakeholders

Innovators should assess the broadness of the claims to secure robust protection. The patent’s scope over novel compounds and methods could block or delay generic competition.

Generic firms need to review prior arts thoroughly to identify potential design-arounds or invalidity arguments, especially if the claims are broad.

Licensing opportunities may emerge if the patent is narrow or if complementary technologies are involved, enabling partnerships or R&D collaborations.


Analysis of Patentability and Risks

  • Strengths: Likely a strong inventive step based on structural novelty or surprising efficacy.
  • Weaknesses: Possible vulnerability to obviousness objections if similar compounds or methods exist in the prior art.
  • Legal Risks: Potential for oppositions or invalidation in Korea if prior arts can be demonstrated to anticipate or render the claims obvious.

Conclusion

Patent KR20220141906 positions itself as a strategic IP asset, designed to monopolize specific chemical entities or treatment methods within South Korea. Its broad claims aim to deter competitors, but the specific scope and quality of these claims will determine enforceability. Companies should conduct detailed claim chart analyses and prior art searches to verify the strength of this patent and to inform licensing or design-around strategies.


Key Takeaways

  • Broad Claim Scope: The patent likely covers a new chemical entity, formulation, or therapeutic use, providing significant competitive leverage in South Korea.
  • Landscape Positioning: It aligns with Korea’s innovation-driven IP environment, targeting diseases with high national health relevance.
  • Strategic Implications: Stakeholders should assess claim validity against prior art and consider patent landscape dynamics for licensing, enforcement, or designing around.
  • Legal Watch: Ongoing scrutiny, including patent oppositions or challenges, could influence the patent’s enforceability.
  • IP Strategy: Firms should integrate detailed prior art searches and patent landscape analyses when developing or launching similar products in Korea.

FAQs

Q1: What are the typical components included in the claims of a pharmaceutical patent like KR20220141906?
A1: Claims typically include independent claims about the active compound or therapeutic use, with dependent claims refining chemical structure, formulation specifics, dosage, or method of administration.

Q2: How does South Korea’s patent law impact pharmaceutical patent enforcement?
A2: South Korea's patent law emphasizes novelty, inventive step, and industrial applicability, providing robust enforcement mechanisms but also allowing oppositions and invalidity proceedings.

Q3: Can existing patents or literature challenge the validity of KR20220141906?
A3: Yes. Prior art, such as earlier patents, publications, or disclosures, can be cited to argue lack of novelty or inventive step, potentially invalidating or narrowing the patent.

Q4: How does the patent landscape influence generic entry in South Korea?
A4: A strong, broad patent can delay generic entry; however, patents are vulnerable to challenges, and patent cliffs or patent thickets influence market dynamics.

Q5: What strategic steps should a company take upon analyzing a patent like KR20220141906?
A5: Conduct comprehensive claim analysis, prior art searches, and landscape mapping to evaluate freedom-to-operate, opportunities for licensing, or potential invalidation strategies.


References

  1. Korean Intellectual Property Office (KIPO). Patent search database.
  2. WIPO. International Patent Classification (IPC).
  3. Patent landscape reports for South Korea pharmaceutical sector.
  4. Korean Patent Act and Enforcement Manual.
  5. Industry analysis reports on South Korean biotech patent trends.

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