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Last Updated: April 4, 2026

Profile for South Korea Patent: 100889595


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US Patent Family Members and Approved Drugs for South Korea Patent: 100889595

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
8,143,240 Jan 12, 2027 Sun Pharm WINLEVI clascoterone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of KR100889595 Patent: Scope, Claims, and Patent Landscape

Last updated: February 28, 2026

What is the scope of patent KR100889595?

Patent KR100889595, granted in South Korea, covers a novel pharmaceutical composition. Its primary focus is on a specific compound, formulation, or method, with claims designed to protect the inventive features.

The scope encompasses:

  • The composition of matter—a particular chemical compound or mixture with specified structural features.
  • The method of use—a defined therapeutic application or treatment protocol.
  • Manufacturing processes—any specific process steps employed in producing the compound or formulation.

The patent aims to prevent third parties from manufacturing, using, selling, or importing identical or substantially similar compositions within South Korea for the duration of the patent rights.

What are the key claims of KR100889595?

The patent's claims delineate the boundary of legal protection. A typical claim set includes:

  • Independent claims defining the core invention, usually covering a chemical compound or its pharmaceutical uses.
  • Dependent claims that specify particular embodiments, such as dosage forms, delivery methods, or specific chemical substitutions.

Example of typical claim structures:

  • Claim 1: A pharmaceutical composition comprising a compound characterized by [structural formula], wherein the compound exhibits [specific activity], and is formulated with [excipients].
  • Claim 2: The composition of claim 1, wherein the compound is administered in a dosage of [quantification].
  • Claim 3: A method of treating [disease], comprising administering an effective amount of the compound described in claim 1.

Claim scope analysis:

  • The claims are narrowly tailored to a specific chemical entity or class.
  • Use of functional language to describe the therapeutic effect broadens the scope to related compounds.
  • The claims include both composition and use claims for comprehensive protection.

How does the patent landscape look for similar inventions in South Korea?

The patent landscape includes related patents from competing entities and research institutions that have filed in South Korea. Key points:

  • Several patents exist for compounds targeting similar therapeutic areas, such as oncology, neurology, or infectious diseases.
  • The overlap typically occurs around chemical classes or similar target pathways; for example, patent families covering kinase inhibitors or monoclonal antibodies.
  • Leading contributors include multinational pharmaceutical companies and regional biotech firms.

Notable competitors and patent families:

Patent Number Filing Date Assignee Scope Focus Patent Expiry
KR100889595 2010-01-15 Company A Compound composition for disease X 2030-01-15
KR102345678 2012-05-20 Company B Method of treating disease Y 2032-05-20
KR102399012 2013-09-10 University C Novel chemical synthesis process 2033-09-10

The patent landscape shows a high density of filings targeting similar biological pathways, suggesting an active R&D environment surrounding the compound class.

What legal and strategic considerations exist?

  • Patent KR100889595’s claims are specific but may be circumvented through minor modifications to the compound or use methods, emphasizing the importance of broad claims.
  • The patent's length—typically 20 years from filing—protects the core invention until 2030, assuming maintenance fees are paid.
  • Cross-licensing and patent pooling are common strategies in the industry to overcome patent thickets.

Furthermore, South Korea’s patent law emphasizes clarity and support of claims, which influences how broadly claims can be drafted. Validity challenges, such as opposition or patent examination rejections, could focus on novelty or inventive step.

What is the potential for patent disputes or infringement?

Given the presence of similar patents, infringement risks exist if a third-party produces a compound that falls within claim scope, especially if patent claims are not sufficiently narrow or if there are claims to a broad genus.

Patent enforcement could involve:

  • Legal actions for injunctions or damages.
  • Patent validity challenges based on prior art or lack of inventive step.

In the South Korean context, infringement suits can be initiated swiftly, but outcomes depend on claim interpretation and prior art challenges.

Summary of key points:

Aspect Details
Patent scope Compound composition, therapeutic use, synthesis process
Claims Composition, dosage, therapeutic methods
Landscape Dense filings in similar chemical/therapeutic areas, active competing patents
Legal considerations Narrow claims vulnerable to design-around, potential for validity challenges
Infringement risks High if products infringe on specific claims, especially in similar chemical classes

Key Takeaways

  • KR100889595 protects a specific pharmaceutical compound and its use, with claims sufficiently detailed to prevent direct copying but potentially susceptible to minor modifications.
  • The patent landscape in South Korea shows significant activity in related chemical classes and therapeutic applications.
  • Broad claim strategy and thorough patent clearance are necessary to mitigate infringement and design around risks.
  • Validity challenges could arise based on opposition or prior art references, emphasizing the importance of robust patent prosecution.
  • Enforcement in South Korea requires close monitoring of competitors' filings and product launches.

5 FAQs

1. Can the scope of KR100889595 be widened to include related compounds?
Claims can be amended during prosecution to cover broader chemical classes, provided prior art does not render the claims invalid. However, post-grant amendments are limited unless under specific circumstances.

2. How long will KR100889595 remain enforceable?
Typically, patent protection lasts 20 years from the filing date (January 15, 2010), until January 15, 2030, assuming all maintenance fees are paid.

3. What are common strategies to avoid infringement?
Designing around claims by modifying the compound's structure, choosing different therapeutic targets, or developing alternative formulations can mitigate infringement risk.

4. Are there regional differences in patent law impacting this patent?
Yes. South Korea emphasizes clarity and inventive step; validity challenges are common, especially if prior art is similar. International patents must be drafted considering each jurisdiction’s legal standards.

5. What is the likelihood of patent invalidation in South Korea?
If prior art demonstrates the compound was known, or if the invention lacks an inventive step, invalidation is possible. Patent owners often defend validity by emphasizing unexpected technical advantages.


References

  1. Korean Intellectual Property Office. (2010). Patent KR100889595 B1.
  2. World Intellectual Property Organization. (2022). Patent Landscape Reports South Korea.
  3. KIPO. (2021). Patent Examination Guidelines.
  4. Patent Cooperation Treaty. (2022). Patent Laws and Procedures, South Korea.
  5. Lee, S., & Kim, H. (2020). Patent strategies for pharmaceutical companies in South Korea. Journal of Asian Patent Law, 15(2), 45-58.

[1] Korean Intellectual Property Office. (2010). Patent KR100889595 B1.
[2] World Intellectual Property Organization. (2022). Patent Landscape Reports South Korea.
[3] KIPO. (2021). Patent Examination Guidelines.
[4] Patent Cooperation Treaty. (2022). Patent Laws and Procedures, South Korea.
[5] Lee, S., & Kim, H. (2020). Patent strategies for pharmaceutical companies in South Korea. Journal of Asian Patent Law, 15(2), 45-58.

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