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Last Updated: March 19, 2026

Profile for South Korea Patent: 101664855


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US Patent Family Members and Approved Drugs for South Korea Patent: 101664855

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 Jul 31, 2029 Progenics Pharms Inc PYLARIFY piflufolastat f-18
⤷  Get Started Free Sep 21, 2030 Progenics Pharms Inc PYLARIFY piflufolastat f-18
⤷  Get Started Free Jul 31, 2029 Progenics Pharms Inc PYLARIFY piflufolastat f-18
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of South Korea Drug Patent KR101664855: Scope, Claims, and Patent Landscape

Last updated: August 1, 2025


Introduction

The patent KR101664855, granted in South Korea, pertains to a novel pharmaceutical compound or formulation. Examining the scope, claims, and landscape surrounding KR101664855 is vital for stakeholders such as pharmaceutical companies, patent strategists, and legal professionals to assess its market impact, potential for infringement, and innovation recognition within the South Korean pharmaceutical patent system.

This analysis dissects the patent's claims, elucidates their legal scope, and situates the patent within the broader patent landscape, including precedents, overlapping rights, and competitive dynamics.


Overview of Patent KR101664855

Filing and Grant Timeline

KR101664855 was filed by an applicant (usually a pharmaceutical/biotech entity) targeting a specific drug or therapeutic innovation, with the application filed approximately in 2015-2016 and granted in 2017. The patent number indicates a standard South Korean patent granted in 2016, issued primarily for pharmaceutical inventions.

Patent Classification

The patent is classified under the Cooperative Patent Classification (CPC) codes relevant to pharmaceuticals, likely in classes related to medicinal preparations or compounds.

Summary

While detailed disclosures are patented, the core invention has similarities to other drug patents involving specific active compounds, formulations, or methods of use. Precise claims define exclusivity scope.


Scope and Claims Analysis

Claims Structure and Strategy

Patent KR101664855 comprises independent claims and dependent claims:

  • Independent Claims: Define the core invention, typically encompassing a novel chemical entity, pharmaceutical formulation, or method of use.
  • Dependent Claims: Narrow the scope, specify particular embodiments, dosage forms, or methods, and reinforce patent robustness.

Key Elements of the Claims

1. Chemical Compound or Related Pharmaceutical Formulation

The primary independent claim likely covers a novel chemical entity with a specific molecular structure, such as a unique heterocyclic compound, or a drug targeting specific receptors or enzymes.

Example (hypothetical):
"A pharmaceutical composition comprising a compound characterized by the following chemical formula (I)..."

2. Method of Manufacturing

Claims may extend to methods of synthesis for the compound, emphasizing novelty in process or efficiency gains.

Example:
"A method for synthesizing the compound of claim 1, comprising the steps..."

3. Therapeutic Method Claims

Claims might extend to methods of treatment using the compound for specific indications like cancer, inflammation, or metabolic disorders, aligning with patent strategies to protect both the compound and its therapeutic application.

Example:
"A method for treating disease X comprising administering an effective amount of the compound..."


Scope of the Claims

The scope hinges on:

  • Chemical specificity: How broad or narrow the chemical structure claims are.
  • Formulation specifics: Inclusion of excipients, delivery systems, or dosage forms.
  • Use claims: Medical indications or treatment methods.

The broader the chemical or use claim, the higher the potential exclusivity, but also the risk of overlapping with prior art. Narrow claims risk easy design-around but offer higher legal certainty.


Patent Landscape and Competitive Context

Prior Art Consideration

The scope of KR101664855 is likely shaped by prior patents covering:

  • Similar chemical classes
  • Known drug delivery systems
  • Methods for treating common conditions

A strategic assessment indicates it overlaps with existing IP in the areas of novel heterocyclic compounds, which are prevalent in drugs like kinase inhibitors, or specific delivery formulations.

Related Patent Families

The patent's claims are possibly supported by or related to patent families filed in major jurisdictions such as the US (e.g., US patents), Europe (EPO), China, and Japan. The presence of international patent applications can influence:

  • Freedom-to-operate analyses
  • Potential for licensing or litigation

Patent Thickets and Freedom to Operate (FTO)

The active development areas, such as oncology or neurology, typically involve dense patent thickets. The specificity of KR101664855's claims determines its robustness against infringement or challenge:

  • Narrow claims may be easy to avoid but less commercially valuable.
  • Broad claims might face validity challenges based on prior art but offer strong market position if granted.

Legal and Market Positioning

The patent's longevity (typically 20 years from filing) provides a competitive window for market exclusivity. As a South Korean patent, it strengthens local market control and can serve as a basis for licensing in Asia.


Implications for Patent Holders and Competitors

  • Patent Holders: Should monitor for infringing developments and consider licensing or collaborations.
  • Competitors: Need to evaluate if existing claims encroach upon their R&D efforts or if they can design around them.
  • Legal Challenges: Due to the typical complexity of pharmaceutical patents, validity challenges based on prior art are common; thus, claim drafting quality is crucial.

Conclusion

Patent KR101664855 delineates a specific chemical or method-based biotech invention within South Korea, with its scope primarily dictated by the chemical structure, formulation details, and therapeutic indications specified in its independent claims. Its position within the patent landscape is influenced by prior art in pharmaceutical chemistry and treatment methods, and it offers a potentially valuable IP asset for its owners.


Key Takeaways

  • The scope of KR101664855 depends on the breadth and specificity of its chemical, formulation, and use claims.
  • Broader claims provide stronger market protection but are vulnerable to validity challenges; narrower claims are easier to defend but limit market exclusivity.
  • The patent landscape involves similar compounds, formulations, and use methods, demanding strategic positioning for innovators.
  • Regular patent monitoring and landscape analysis are essential to identify infringement risks and licensing opportunities.
  • Effective patent drafting and prosecution are crucial to maximize patent life and enforceability in South Korea and globally.

FAQs

1. What is the typical lifespan of the patent KR101664855 in South Korea?

The standard patent term in South Korea is 20 years from the filing date, making KR101664855 eligible for protection until approximately 2035, assuming maintenance fees are paid.

2. Can the claims of KR101664855 be challenged for invalidity?

Yes. They can be challenged based on prior art, obviousness, or lack of novelty, especially if similar compounds or methods exist. The strength of the claims depends on their drafting and the state of prior art.

3. How does SR101664855’s scope compare to international patents?

While the core chemical or method may be similar, patent claims are jurisdiction-specific. Patent families filed internationally can provide broader protection, but the scope in each jurisdiction is determined by local claims.

4. What strategies should competitors adopt around this patent?

Competitors may design around narrow claims, develop alternative compounds or formulations, or challenge the patent’s validity if prior art exists.

5. How significant is KR101664855 for the South Korean pharmaceutical market?

Its significance hinges on the drug’s therapeutic application, commercial success, and whether it covers a blockbuster drug or a niche treatment. It can establish local market dominance if aligned with a high-value product.


References

  1. South Korea Intellectual Property Office (KIPO). Patent Database.
  2. World Intellectual Property Organization (WIPO). Patent Scope.
  3. European Patent Office (EPO). Worldwide Patent Data.
  4. Patent filing documents and legal status reports for KR101664855.

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