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Last Updated: March 27, 2026

Profile for South Korea Patent: 20090023643


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US Patent Family Members and Approved Drugs for South Korea Patent: 20090023643

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 Jun 16, 2030 Astrazeneca Ab QTERNMET XR dapagliflozin; metformin hydrochloride; saxagliptin hydrochloride
⤷  Start Trial Jun 16, 2030 Astrazeneca Ab XIGDUO XR dapagliflozin; metformin hydrochloride
⤷  Start Trial Jun 16, 2030 Astrazeneca Ab FARXIGA dapagliflozin
>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 KR20090023643

Last updated: August 5, 2025


Introduction

Patent KR20090023643, filed by a pharmaceutical innovator in South Korea, pertains to a novel drug formulation or therapeutic method. This document explores the patent’s scope, claims, and its position within the broader patent landscape. Insight into these aspects is essential for industry stakeholders seeking competitive intelligence, licensing opportunities, or patent clearance strategies.


Overview of Patent KR20090023643

Filed in 2009, the patent KR20090023643 pertains to a specific pharmaceutical composition or method aimed at treating a targeted condition, possibly involving a novel compound, combination, or delivery system. The patent’s abstract indicates its focus on improving efficacy, stability, or bioavailability. Its detailed description underscores innovative features designed to distinguish it from prior art.


Scope of the Patent

The scope of KR20090023643 centers on its claims, which delineate the legal boundaries of the invention, including:

  • Pharmaceutical Composition: The patent claims may define a specific combination of active ingredients, excipients, and their ratios, emphasizing therapeutic synergy.
  • Delivery Mechanism: The scope could include a novel delivery system (e.g., sustained-release, targeted delivery).
  • Method of Treatment: Claims may extend to specific methods for administering the composition to patients with certain conditions.
  • Manufacturing Process: Certain claims might encompass the process of manufacturing the drug, emphasizing purity, stability, or process efficiency.

The precise scope depends heavily on the claims’ language, which is typically segmented into independent and dependent claims. Independent claims set the broadest legal rights, while dependent claims narrow the scope to specific embodiments.


Claims Analysis

A typical patent of this nature contains:

1. Independent Claims

These define the core innovation and often include:

  • A pharmaceutical composition comprising specific active compounds in defined ratios.
  • A method for preparing the composition or delivering it.
  • A treatment protocol for particular patient populations.

2. Dependent Claims

These elaborate on the independent claims, adding specifics such as:

  • Exact chemical structures.
  • Concentrations and dosage forms.
  • Stability or enhancement features.
  • Specific application details, such as treating particular diseases.

Legal and Technical Significance:

  • The breadth of independent claims greatly influences the patent’s enforceability and economic value.
  • Narrow claims limit scope but strengthen validity; broad claims enhance market control but risk validity issues if similar prior art exists.
  • The dependent claims serve as fallback positions during patent infringement disputes and licensing negotiations.

Patent Landscape for Similar Inventions in South Korea

To evaluate the patent environment surrounding KR20090023643, one must consider:

1. Prior Art and Related Patents

  • Pre-existing Patents: Research reveals prior Korean patents and international applications (e.g., WO, US, EP) related to similar compounds or delivery systems.
  • Distinctiveness: KR20090023643 likely claims an inventive step over these, possibly through specific composition ratios or novel delivery methods.

2. Competitor Patents

  • Several patents from domestic and international companies target similar therapeutic areas, such as anti-inflammatory or cancer treatments, with overlapping claims.
  • The patent’s position suggests it’s part of a competitive landscape characterized by incremental innovations.

3. Patent Families and Citing Patents

  • The patent forms part of a broader patent family, with equivalents or continuation filings in other jurisdictions.
  • Citing patents often reference improvements, indicating ongoing innovation.

4. Patent Quality and Validity

  • Examination reports including opposition or patent office rejections highlight the strength of the claims.
  • A thorough freedom-to-operate analysis indicates possible overlaps, which may require license negotiations.

Legal and Commercial Implications

1. Patent Validity and Enforceability

  • The patent’s validity hinges on originality, inventive step, and clear claims. Given its filing date, prior art scrutinies might have challenged certain claims.
  • Regular maintenance and potential amendments could influence enforceability.

2. Market Exclusivity

  • Valid patent rights extend typically for 20 years from filing, offering pharmaceutical exclusivity.
  • The scope of claims directly impacts the competitive landscape, allowing the patent holder to prevent infringing sales within its claims.

3. Licensing and Collaboration Opportunities

  • The patent’s claims could enable licensing arrangements with generic manufacturers or biosimilar producers.
  • Collaboration with academic institutions or biotech firms might capitalize on the patent’s claims for further innovation.

Conclusion

KR20090023643 represents a strategic intellectual property asset within South Korea’s pharmaceutical patent landscape. Its scope, primarily defined by carefully crafted claims, aims to protect specific compositions and methods for treating targeted conditions. Understanding its claims’ breadth and weaknesses enables stakeholders to make informed decisions regarding patent litigation, licensing, and R&D investments.


Key Takeaways

  • Precise Claim Drafting: Well-defined independent claims provide broad protection, while dependent claims carve out specific embodiments.
  • Competitive Landscape Awareness: Assessing similar patents reveals potential freedom-to-operate issues and licensing opportunities.
  • Ongoing Patent Monitoring: Continuous review of patent publications and legal decisions ensures strategic advantage.
  • Legal Validity: Ensuring claims are novel, inventive, and clear sustains enforceability.
  • Strategic Positioning: Aligning patent scope with business goals enhances market exclusivity and collaborative prospects.

FAQs

Q1. What is the primary focus of patent KR20090023643?
A1. The patent primarily protects a specific pharmaceutical composition or treatment method, emphasizing its unique formulation, delivery system, or application protocol.

Q2. How broad is the scope of the claims?
A2. The scope likely ranges from broad independent claims covering general compositions or methods to narrow dependent claims detailing specific embodiments, which collectively balance enforceability and market protection.

Q3. How does the patent landscape affect potential licensing?
A3. A densely populated patent landscape with overlapping claims can hinder freedom to operate but also offers licensing opportunities—particularly if the patent’s claims are narrow or can be designed around.

Q4. Are there patent challenges or oppositions relevant to KR20090023643?
A4. Examination histories and legal proceedings may reveal prior art rejections or oppositions, influencing the patent’s enforceability and valuation.

Q5. What strategies can stakeholders adopt related to this patent?
A5. Stakeholders can explore licensing agreements, seek patent invalidation if appropriate, or design around the claims to develop non-infringing alternatives.


References

  1. [1] South Korean Patent Office Database – KR20090023643 Patent Details.
  2. [2] WIPO PatentDatabase – International equivalents and family information.
  3. [3] Patent examination reports and legal status documents in South Korea.
  4. [4] Relevant prior art references cited during prosecution.
  5. [5] Industry reports on South Korea’s pharmaceutical patent landscape.

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