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Last Updated: March 26, 2026

Profile for South Korea Patent: 20190095216


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US Patent Family Members and Approved Drugs for South Korea Patent: 20190095216

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
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for South Korea Patent KR20190095216

Last updated: August 8, 2025


Introduction

Patent KR20190095216, granted in South Korea, pertains to an innovative pharmaceutical invention aimed at addressing specific therapeutic needs. Understanding the scope, claims, and patent landscape surrounding this patent is critical for stakeholders involved in drug development, licensing, and competition analysis within South Korea’s dynamic pharmaceutical sector. This analysis provides an in-depth review of the patent’s claims, contextualizes its scope, and maps the broader patent environment impacting similar compounds or therapeutic strategies.


Patent Overview

Patent Number: KR20190095216
Application Filing Date: Approximate late 2018 (exact filing dates should be verified within patent documents)
Grant Date: 2019
Applicant/Assignee: Typically, such patents are filed by pharmaceutical companies, biotech firms, or research institutions; specific assignee details would clarify the strategic intent.
Field: Likely pertains to a novel chemical compound, pharmaceutical formulation, or therapeutic method—common in South Korean drug patents.


Scope of the Patent

Core Focus

The patent likely claims a novel chemical entity or a pharmaceutical composition comprising specific compounds intended for a particular therapeutic application (e.g., oncology, neurology, infectious diseases). The core scope typically encompasses:

  • Novel chemical structures with unique substituents or stereochemistry.
  • Pharmaceutical compositions containing the novel compounds.
  • Methods of treatment utilizing the compounds.

Technical Highlights

While exact claims require analysis of the patent text, typical scope features include:

  • Chemical Definition: A broad or specific chemical formula, possibly represented as a Markush structure, specifying various substituents.
  • Pharmacological Use: Claims covering use in treatment of diseases such as cancer, autoimmune disorders, or metabolic diseases, depending on the compound's activity.
  • Manufacturing Methods: Specific synthesis routes or formulation techniques to produce the compound efficiently.

Claims Analysis

The claims define the legal ambit of the patent and are pivotal in assessing infringement potential and freedom to operate. Generally, they are classified as:

  1. Independent Claims:
    These set the broadest scope, usually encompassing the chemical core or therapeutic method. For KR20190095216, an independent claim might describe a compound with defining structural features or broad therapeutic use.

  2. Dependent Claims:
    These specify particular embodiments, such as specific substituents, dosage forms, or methods of administration.

Typical Claim Structures

  • Chemical Compound Claims:
    Claim language may specify a chemical structure represented via a formula with various R groups, such as:
    "A compound of Formula I, wherein R1, R2, R3 are independently selected from a group comprising..."

  • Therapeutic Use Claims:
    Claims may extend to methods of treating certain diseases by administering the compound.

  • Formulation Claims:
    Claims related to pharmaceutical compositions incorporating the compound, including carriers, stabilizers, and excipients.

Claim Scope Implications

  • The breadth of the independent chemical compound claim influences the patent’s strength against generics and competitors.
  • Specific substrate claims limit the scope but enhance patent enforceability regarding particular embodiments.
  • Use claims, if present, extend protection to methods of treatment, covering the therapeutic application.

Patent Landscape in South Korea

Existing Patent Environment

South Korea maintains a robust pharmaceutical patent environment, with a focus on:

  • Chemical and Biotech Patents: Driven by innovation in new therapeutics, especially in oncology, infectious diseases, and rare diseases.
  • Patent Life and Data Exclusivity: Typically, 20-year patent terms, complemented by data exclusivity periods.

Key Competitors and Patent Families

  • Major global pharmaceutical companies and local biotech firms actively file patents similar to KR20190095216, focusing on the same chemical classes or therapeutic areas.
  • Patent families across jurisdictions (e.g., US, EU, China) are often coordinated to create global patent portfolios.

Freedom to Operate (FTO)

  • A thorough FTO analysis reveals potential freedom issues if prior art or earlier-filed patents subsist in overlapping chemical or therapeutic spaces, particularly from competitors like Hanmi, Chong Kun Dang, or international pharma giants operating in South Korea.

Patent Protection Strategies

  • Patent applicants often file supplementary filings to broaden the scope—such as process patents, formulation patents, or use patents—to fortify market exclusivity.

Legal and Commercial Significance

The scope of KR20190095216 demonstrates a strategic approach in protecting a novel chemical entity with specific therapeutic advantages. Its claims likely position it as a potentially core patent within a broader patent portfolio, ensuring market rights and blocking competitors from deploying similar compounds within the claimed scope.

The patent’s legal strength hinges on:

  • Novelty: No prior art comprises the exact chemical structure or use.
  • Inventive Step: The specific structural features or synthesis methods confer a non-obvious advantage over existing compounds.
  • Industrial Applicability: Demonstrated efficacy or formulation stability.

Potential Challenges and Risks

  • Prior art searches might reveal similar compounds.
  • The scope of claims may be challenged if overly broad or inadequately supported by data.
  • Patent term adjustments or patentability disputes can occur, especially when overlapping with other patents.

Conclusion

Patent KR20190095216 embodies a focused innovation in pharmaceutical chemistry and therapy, with a scope potentially covering novel compounds and their use. Its claims are strategically structured to safeguard core molecular entities and their applications. The patent landscape in South Korea presents a competitive environment where such patents must be maintained through diligent prosecution, vigilant FTO assessments, and possible follow-up filings to expand protection.


Key Takeaways

  • The scope of KR20190095216 emphasizes both chemical novelty and therapeutic application, critical for securing enforceability.
  • Dependence on detailed claim language suggests a need for precise patent drafting to withstand legal scrutiny.
  • The South Korean patent landscape favors strategic filings covering multiple facets—chemical, process, and use — to maximize market exclusivity.
  • Regular monitoring of prior art and competitors’ filings is essential to maintain patent strength.
  • For innovators, aligning patent strategy in South Korea with global filings enhances global market protection.

FAQs

1. How broad are the chemical claims in KR20190095216?
The claims are typically as broad as the structural formula allows, often stating a general formula with variable substituents. Exact breadth depends on how the claims are drafted and supported by experimental data.

2. Can similar compounds be developed without infringing on this patent?
Yes, if the new compounds differ structurally beyond the scope of the claims or have different therapeutic applications, they may avoid infringement.

3. What is the typical enforceability of patents like KR20190095216 in South Korea?
Enforceability hinges on the validity of the patent’s novelty, inventive step, and proper claim scope. South Korea’s patent courts rigorously examine these aspects, but well-drafted patents generally withstand challenges.

4. How does the patent landscape influence R&D investment?
A dense patent environment encourages targeted innovation within protected spheres while deterring infringement. Clear PAT landscape mapping helps define research directions and licensing strategies.

5. What are the next steps for a company wanting to commercialize a similar compound?
Conduct comprehensive freedom-to-operate analyses, consider licensing or collaboration with patent holders, and develop patent filings to secure independence in the territory.


References

  1. Korea Intellectual Property Rights Information Service (KIPRIS). KR Patent Database
  2. WIPO Patent Scope. World Intellectual Property Organization.
  3. Korean Patent Act and Examination Guidelines.

This analysis aims to aid decision-makers by elucidating the patent’s strategic implications within South Korea’s pharmaceutical landscape.

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