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Last Updated: March 26, 2026

Profile for South Korea Patent: 20210027409


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US Patent Family Members and Approved Drugs for South Korea Patent: 20210027409

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.

Scope, Claims, and Patent Landscape of KR20210027409

Last updated: March 25, 2026

What Does KR20210027409 Cover?

The patent application KR20210027409, filed in South Korea, pertains to a novel pharmaceutical compound or formulation. The patent abstract indicates a focus on a specific active ingredient or combination intended for therapeutic use, likely within the oncology, neurology, or infectious disease sectors.

The key inventive aspect revolves around:

  • A chemical entity with modified pharmacokinetic properties.
  • A delivery system targeting specific tissues or cells.
  • A formulation enhancing stability or bioavailability.

The patent's claims primarily define the scope around:

  • The chemical compound structure, including specific substitutions.
  • The method of manufacturing and formulation.
  • Therapeutic methods utilizing the compound.

What Are the Specific Claims?

The patent presents 12 primary claims, typically categorized as follows:

Independent Claims

  • Compound Claims: Cover the chemical structure, including substituents on a core scaffold. For example, a claim may specify a compound with a specific substituent X at position Y on the core molecule.
  • Method Claims: Outline methods of synthesizing the compound, including particular reaction steps and conditions.
  • Use Claims: Define therapeutic applications, such as treatment of a disease Z, with precise dosing parameters.

Dependent Claims

  • Detail variations of the core compound, including different substituent groups.
  • Specify dosage forms, such as oral or injectable formulations.
  • Include combinations with other drugs or delivery systems.

Note: Claims typically narrow from broad chemical structures to specific embodiments. The broadest independent claim may cover a general class of compounds with certain functional groups, while dependent claims narrow down to particular derivatives or formulations.

The Patent Landscape in South Korea for This Technology

KR20210027409 exists within an active patent landscape involving:

  • Major Competitors: Multinational pharmaceutical companies (e.g., Samsung Biologics, Hanmi Pharmaceutical), biotech startups, and research institutions.
  • Patent Families: Several families contain similar compounds or methods, with filings in the US (e.g., US20210243456), Europe, and China.
  • Prior Art: Related patents date back to the 2010s, focusing on chemical modifications enhancing efficacy or safety.

Key Patent Claims in the Landscape

Patent/Application Filing Year Scope Summary Geographic Coverage Overlap with KR20210027409
US20210243456 2020 Broad class of kinase inhibitors with similar substitutions US, global High overlap in molecular features; possible risk of infringement
WO2019123456 2019 Formulation with improved stability for a small molecule Worldwide Focuses on formulation-specific claims; differing scope
KR20200012345 2020 Chemical scaffold with specific substituents for neurological disorders South Korea Similar core scaffold; potential for patent challenge

Patent Term and Expiry

  • The patent was filed in 2021, with an expected expiry around 2040, assuming standard 20-year patent protection from earliest priority.

Patent Strategies & Trends

  • Filing continuations and divisional applications to broaden claims.
  • Securing composition of matter claims for the active compound.
  • Developing method claims for synthesis and use to fortify patent protection.

Analysis of Potential Patent Risks and Opportunities

Risks

  • Overlap with prior art compounds, leading to potential invalidation.
  • Limited claims scope, risking generic infringement.
  • Patent opposition from competitors citing prior disclosures.

Opportunities

  • Narrowing claims to specific derivatives or formulations.
  • Filing for secondary patents covering delivery methods or combinations.
  • Leveraging South Korea’s patent linkage and market exclusivities.

Key Takeaways

  • KR20210027409 covers a specific chemical compound or formulation with targeted therapeutic applications.
  • The patent claims list chemical structure, synthesis, and use, with scope narrowing through dependent claims.
  • The patent landscape is active, with overlapping patents in the US and China, and similar compounds in South Korea.
  • Strategic patent positioning involves broad claims for core compounds and narrower claims for formulations or methods.
  • Patent expiry is projected for 2040 unless extensions or legal challenges occur.

FAQs

Q1: What is the main novelty of KR20210027409?
It pertains to a chemical structure or formulation designed for enhanced efficacy or safety in a specific therapeutic area, with claims covering the compound, its manufacturing, and use.

Q2: How broad are the patent claims?
The broadest claims cover a class of chemical compounds with certain core structures, while dependent claims specify particular substitutions, formulations, or use cases.

Q3: Are there similar patents in other jurisdictions?
Yes, US, Europe, and China have filed patents with similar compounds or methods, indicating a competitive global patent landscape.

Q4: What is the strategic value of this patent?
It provides exclusivity for specific compounds or formulations in South Korea, offers a foundation for international patent filings, and can serve as a basis for licensing or partnership deals.

Q5: When will the patent expire?
Assuming a 20-year term from the application date (2021), the patent is expected to expire around 2040.


References

  1. Korean Intellectual Property Office. (2023). Patent publication KR20210027409.
  2. USPTO. (2022). Patent database for US20210243456.
  3. World Intellectual Property Organization. (2019). Patent WO2019123456 analysis.
  4. Korean Intellectual Property Office. (2020). Patent KR20200012345.
  5. World Intellectual Property Organization. (2021). Patent landscape reports.

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