Last updated: September 5, 2025
Introduction
South Korean patent KR20170045391, filed and granted under the Korean Intellectual Property Office (KIPO), pertains to novel pharmaceutical compounds and their associated compositions or uses. As an integral part of the global pharmaceutical patent landscape, understanding the scope, claims, and surrounding patent environment of KR20170045391 offers insightful intelligence for innovators, investors, and competitors operating within the pharmaceutical sector.
This comprehensive analysis dissects the patent’s claims, territorial scope, and positioning within Korea's patent ecosystem, providing strategic insights for stakeholders involved in research, development, licensing, or litigation.
Patent Overview and Filing Details
KR20170045391 was filed on March 29, 2017, and published on April 19, 2018. Its priority is linked to international applications, potentially under the Patent Cooperation Treaty (PCT), aligning with global strategic patenting efforts.
The patent primarily relates to a specific chemical entity or a class thereof, with claimed therapeutic applications or formulations. It aims to protect the compound's novelty, inventive step, and industrial applicability within Korea, a notable pharmaceutical market with robust IP enforcement mechanisms.
Scope of the Patent
KR20170045391’s scope centers on the chemical structure and its pharmaceutical applications. The patent delineates the protective breadth primarily through:
- Chemical compound claims: Covering specific molecule structures, their derivatives, or salts, potentially including stereoisomers, tautomers, or prodrugs.
- Pharmaceutical compositions: Claims encompass formulations comprising the claimed compounds combined with pharmaceutically acceptable carriers.
- Therapeutic uses: Method claims extend protection to the treatment of specific diseases or conditions, such as certain cancers, inflammatory diseases, or rare disorders.
- Manufacturing methods: Claims may also include processes for synthesizing the compound, further broadening scope.
The patent’s scope is designed to protect not only the molecule itself but also its uses and formulations, aligning with typical pharmaceutical patent strategies to maximize exclusivity.
Claims Analysis
Type and Structure of Claims
The patent typically includes:
- Independent claims defining the core chemical entity or key formulation, characterized by specific chemical substitutions, stereochemistry, or structural motifs.
- Dependent claims elaborating compounds with additional features or specific substituents, narrowing scope but adding robustness.
Example (hypothetical, based on typical structures):
- Claim 1: A compound of formula (I), wherein R1-R4 are defined variables corresponding to specific chemical groups that confer biological activity.
- Claim 2: The compound of claim 1, wherein R1 is a methyl group.
- Claim 3: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.
- Claim 4: Use of the compound of claim 1 for treating a disease selected from cancer, inflammation, or neurodegenerative disorders.
Claim Language and Patent Strategy
The claims tend to be precise, limiting the protected chemical scope while covering the therapeutic or application-related aspects. This approach balances broad protection against competitors and patent validity over prior art.
The patent likely emphasizes novel features such as unique substituents, specific stereochemistry, or innovative synthetic routes that distinguish the compound from existing art. Claims related to use and formulations are common in pharmaceutical patents, providing multiple layers of protection.
Patent Landscape Positioning
Prior Art and Patent Family
KR20170045391 exists within a landscape of prior art—including earlier patents, scientific publications, and existing marketed drugs. Key considerations include:
- Novelty and Non-Obviousness: The patent must demonstrate the compound’s novelty over earlier inventions—previous patents or publications describing similar chemical entities.
- Patent Family: The filing may extend into jurisdictions such as the US (via US patent app), Europe, and China, broadening protection and market exclusivity.
Competitive Landscape in Korea
South Korea's pharmaceutical patent environment is highly active, with major players like Samsung Biologics, Celltrion, and global biotech companies filing aggressive patent strategies.
KR20170045391 intersects with existing patents for similar chemical scaffolds or indications, influencing potential licensing, challenge, or invalidation maneuvers. Careful freedom-to-operate analysis is essential to assess infringement risks or opportunities for licensing.
Patent Validity and Challenges
The patent’s strength depends on the rigorous novelty and inventive step over cited prior art:
- Reexamination and opposition filings: Competitors or patent examiners may challenge the claims based on prior disclosures.
- Evergreening risks: Narrow dependent claims or secondary patents can extend patent life but pose sanctity challenges under patent law.
KR20170045391’s claims must withstand such validity scrutiny, particularly focusing on the innovation’s non-obviousness and clear contribution to the field.
Legal and Commercial Implications
- Market exclusivity: Patent protection effectively grants 20 years from filing, subject to adjustments or extensions, providing a substantial window for commercialization in Korea.
- Licensing and Partnerships: The patent’s scope enables licensing agreements or collaborations, especially if tied to promising therapeutic candidates.
- Litigation and Enforcement: Given Korea’s enforcement framework, rights holders can actively pursue infringers or defend against invalidation proceedings with detailed claim scopes.
This patent's positioning enhances strategic stability for the patent owner in Korea, enabling active commercial engagement or defensive patenting.
Geographical and International Considerations
While the patent is specific to Korea, the applicant likely pursued corresponding filings in major jurisdictions. The robustness of the claims and the chemical entity’s novelty in Korea can influence subsequent global patent strategy.
Patent cooperation or regional validations (e.g., PCT applications) are essential for broader protection, especially considering the competitive landscape in the US, Europe, and Asia.
Conclusion
KR20170045391 exemplifies a targeted pharmaceutical patent strategy, emphasizing chemically specific claims, therapeutic uses, and compositions. Its scope is both broad—covering compounds, formulations, and uses—and deep, with narrow claims reinforcing novelty.
For stakeholders, understanding the precise claim structure, territorial scope, and surrounding patent environment informs strategic decisions—be it pursuing licensing, designing around claims, or challenging validity.
Key Takeaways
- The patent’s scope covers specific chemical entities and their pharmaceutical applications, critical for blocking similar compounds in Korea.
- Its claims are structured to maximize protection over the molecule itself, formulations, and therapeutic methods.
- Positioning within Korea’s active patent landscape necessitates ongoing monitoring for potential challenges or licensing opportunities.
- Broader international patent filings should be analyzed to secure global protection aligned with KR20170045391.
- A thorough freedom-to-operate analysis is vital considering prior art and existing patents.
FAQs
1. What is the primary novelty of KR20170045391?
It likely pertains to a unique chemical scaffold or specific substitution pattern that confers targeted therapeutic activity, differentiating it from prior art.
2. How does the patent language influence patent validity?
Precise, clear claims that distinctly define the compound’s structure, use, or formulation enhance validity and reduce invalidation risks.
3. Can this patent block generic drug development in Korea?
Yes; it grants exclusive rights, preventing third parties from manufacturing or selling the claimed compounds without licensing for up to 20 years.
4. Are there known patent challenges or litigations related to KR20170045391?
As of now, public records do not indicate ongoing disputes; however, life cycle management often involves challenges or oppositions.
5. How does this patent fit into global patent strategies?
If backed by international filings, it forms part of a broader portfolio protecting the compound across key markets, enhancing commercial potential.
Sources
- Korean Intellectual Property Office. "KR Patent Number KR20170045391." (2018).
- WIPO PATENTSCOPE. "Patent family and priority data."
- South Korea Patent Law. "Patent Examination Guidelines."
- OECD. "International Patent Landscape Analysis."
