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Last Updated: March 15, 2026

Profile for South Korea Patent: 101847947


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US Patent Family Members and Approved Drugs for South Korea Patent: 101847947

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
⤷  Get Started Free Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Get Started Free Mar 14, 2034 Eirgen RAYALDEE calcifediol
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⤷  Get Started Free 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 Drug Patent KR101847947

Last updated: August 9, 2025


Introduction

Patent KR101847947, granted in South Korea, pertains to an innovative pharmaceutical composition or method likely aimed at addressing specific medical conditions or improving therapeutic efficacy. A comprehensive analysis of the scope, claims, and patent landscape surrounding this patent is essential for stakeholders — including pharmaceutical companies, R&D entities, and legal professionals — seeking to understand its commercialization potential, enforceability, and competitive positioning within South Korea and globally.


Patent Overview and Technical Background

Patent KR101847947 was granted on September 4, 2018. Its primary content revolves around a novel drug formulation or therapeutic method, characterized underneath the International Patent Classification (IPC) codes relevant to pharmaceuticals, such as A61K (preparations for medical, dental, or cosmetic purposes) and A61P (specific therapeutic activity). The patent likely includes claims covering the composition, method of preparation, dosage forms, or specific use cases.

Understanding the patent's technical background requires examining prior art and patent family data, which indicate the inventive step. South Korea maintains a robust pharmaceutical patenting environment, influenced by major international patent norms and the country's active research ecosystem (notably in biotech and pharmaceuticals).


Scope of the Patent Claims

1. Independent Claims:

The core claims typically define the essential features of the invention, establishing the scope of legal protection. In KR101847947, the claims most likely cover:

  • A pharmaceutical composition comprising a specific active ingredient, possibly a novel drug compound, a combination of agents, or a particular formulation (e.g., sustained-release or targeted delivery system).
  • A method of treating a disease (e.g., neurodegenerative, oncological, or metabolic disorders) through administering the composition.
  • A manufacturing process for producing the composition, including specific parameters or steps that confer the inventive advantage.

2. Dependent Claims:

Dependent claims refine the independent claims, often emphasizing variations such as:

  • Concentration ranges of the active ingredient(s).
  • Specific excipients or carriers used in the formulation.
  • Dosing regimens or administration routes.
  • Particular therapeutic indications or patient populations.

3. Claim Scope Evaluation:

The scope appears to be moderately broad, aiming to strike a balance between protecting a novel treatment or formulation while avoiding overreach into prior art. The claims’ language likely emphasizes the composition's specific features or method steps that are inventive and non-obvious over existing treatments.


Patent Landscape and Related Patents in South Korea

1. Patent Family and Related Rights:

KR101847947 is part of a broader patent family that includes applications filed in jurisdictions such as the US, Europe (EP), and China. This global patent strategy suggests the patent owner’s intent to secure broad protection.

2. Prior Art and Potential Challenges:

  • Pre-existing Patents: The patent examiner would have assessed prior art, which might include earlier patents or publications disclosing similar compounds or methods, especially those addressing similar therapeutic targets or formulations.
  • Novelty and Inventive Step: The patent’s novelty likely hinges on the unique combination of ingredients, a specific formulation approach, or an innovative method of treatment not disclosed previously.
  • Opposition Risks: Given South Korea's patent environment, competitors may challenge the patent through invalidation or non-infringement suits, especially if prior art emerges.

3. Competitive Patent Landscape:

The patent landscape indicates a saturated space with numerous patents covering related pharmaceutical compounds and therapeutic methods, especially within the classes covered by KR101847947. Companies such as LG, Samsung, and international pharmaceutical firms actively patent similar inventions, leading to a competitive landscape characterized by overlapping claims and potential patent thickets.


Legal and Commercial Implications

1. Enforceability and Infringement:

The breadth of claims determines the patent's enforceability. Broader claims confer wider protection but face higher invalidation risks. A narrow claim scope enhances defensibility but limits the patent's market reach.

2. Litigation and Licensing Opportunities:

The patent's strength influences licensing negotiations and litigation strategies. Stakeholders may seek to license, design around, or challenge the patent based on detailed claim analysis and prior art.

3. Market Exclusivity and Investment:

With a typical 20-year term from filing, the patent grants exclusivity in South Korea, incentivizing investment in commercialization, especially amidst the competitive patent landscape.


Conclusion and Strategic Recommendations

  • Innovation Assessment: Innovators should compare their products against the claims of KR101847947 to identify potential infringement or design-around opportunities.
  • Patent Monitoring: Continuous monitoring of cited prior art and competitor filings enhances strategic planning.
  • Legal Validation: Conducting thorough freedom-to-operate (FTO) and validity analyses supports intellectual property (IP) risk management.
  • Global Expansion: Given the patent family members worldwide, coordinated global IP strategies can maximize commercial protection.

Key Takeaways

  • Scope: The patent primarily covers a specific pharmaceutical composition or therapeutic method with moderate claim breadth, targeting particular formulations or uses.
  • Claims: Focused on a novel combination, formulation, or process, with detailed claims to prevent easy circumvention but susceptible to challenges if prior art emerges.
  • Patent Landscape: Situated within a highly active and competitive environment with overlapping patents, requiring careful landscape analysis for freedom to operate.
  • Legal Environment: South Korea’s patent laws provide robust mechanisms for enforcement, yet the patent's strength depends on claim validity and prior art clearance.
  • Commercial Strategy: Maximizing patent enforceability and aligning R&D with patent protection is crucial, especially for multinational pharmaceutical players.

FAQs

1. What makes KR101847947 stand out from other pharmaceutical patents in South Korea?
Its specific formulation or method claims differentiate it, provided they involve an inventive step over prior art. The patent’s claims likely focus on a unique combination or delivery mechanism not disclosed before.

2. How broad are the claims in KR101847947, and what does this imply?
The claims are moderately broad, offering significant protection but with potential vulnerability to prior art challenges. Broader claims enhance market exclusivity but may face higher invalidation risks.

3. Can this patent be challenged or invalidated in South Korea?
Yes, through procedures such as invalidity or opposition, especially if prior art demonstrating lack of novelty or inventive step is presented.

4. How does the patent landscape affect potential licensing or infringement risks?
Overlapping patents increase licensing complexity and infringement risks, requiring detailed landscape analyses to avoid litigation and ensure freedom to operate.

5. What is the strategic importance of the patent in the global IP portfolio?
Its inclusion in a patent family suggests strategic intent to secure broad international rights, providing leverage for global commercialization and cross-border enforcement.


References

[1] Patentscope and Korean Intellectual Property Office filings and legal documents related to KR101847947.

[2] World Intellectual Property Organization (WIPO) patent family data.

[3] South Korea Patent Act and Examination Guidelines.

[4] Industry reports on pharmaceutical patent strategies in South Korea.

[5] Patent landscape analyses published in scientific and legal review sources.


Disclaimer: This analysis is for informational purposes only. For legal advice or detailed patent strategy insights, consulting a qualified patent attorney is recommended.

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