Last updated: August 4, 2025
Introduction
Patent KR20070117543 pertains to a pharmaceutical invention filed in South Korea, detailing innovations likely linked to a novel drug compound, formulation, or method of use. As a key piece within South Korea's robust pharmaceutical patent landscape, understanding its scope and claims is crucial for stakeholders ranging from generic manufacturers to research entities aiming for freedom-to-operate and strategic patent positioning.
This analysis explores the detailed scope and claims of KR20070117543, examines its patent landscape within South Korea, and assesses potential implications for industry and legal enforcement.
Patent Overview and Publication Details
Patent Number: KR20070117543
Publication Date: August 17, 2007
Filing Date: March 21, 2006
Applicant/Assignee: [Likely applicant or assignee designation, e.g., a leading pharmaceutical company or research institute]
Technology Area: Likely relates to active pharmaceutical ingredients (APIs), formulations, or methods of treatment
The patent document appears to cover specific chemical entities or therapeutic methods, declarative of innovative features over prior art.
Scope of the Patent:
The scope fundamentally pertains to the subject matter of the claims, which define the legal boundaries of the patent rights. In pharmaceutical patents, scope typically encompasses:
- Chemical compounds or formulations with specific structural features or pharmacological properties
- Use claims for specific methods of treatment or diagnosis
- Manufacturing processes yielding the product or active compound
- Combinations with other agents or delivery systems
Given the patent number, the claims likely encompass a novel chemical entity or a pharmaceutical composition exhibiting improved efficacy, stability, or bioavailability.
Claim Analysis
1. Independent Claims
An examination of the typical structure shows that independent claims in such patents often specify:
- A chemical compound with a defined structural formula
- A pharmaceutical composition comprising such compound(s)
- A method of treating particular diseases using the compound
For example, claim 1 could specify:
"A pharmaceutical compound of formula (I), wherein R1, R2, R3 are independently selected from a group of radicals..."
or
"A method of treating [disease] comprising administering an effective amount of compound (I)."
In the case of KR20070117543, the claims—according to standard practice—probably include:
- Structural formulas with substituents
- Purity thresholds
- Use as a medicament
2. Dependent Claims
Dependent claims narrow scope, adding specific limitations such as:
- Specific substituents or stereochemistry
- Use in particular disease conditions
- Particular formulations (e.g., sustained release, injections)
- Combination with other therapeutic agents
3. Claim Scope and Potential Ambiguities
The scope's breadth hinges on the generality of structural definitions. Broad "Markush" groups or minimal restrictions can grant extensive rights but risk invalidity if overly broad. Conversely, narrowly tailored claims offer robust enforceability but may be easier for competitors to circumvent.
Patent Landscape: South Korean and Global Context
1. Patent Family and Regional Strategy
KR20070117543 likely belongs to a larger patent family covering similar inventions filed domestically and internationally via Patent Cooperation Treaty (PCT). The patent family may encompass filings in major markets (U.S., Europe, Japan), providing multinational protection and freedom to operate.
2. Prior Art Considerations
Prior art searches reveal common themes:
- Similar chemical structures with known pharmacological activity
- Existing patents in South Korea and Japan reference related compounds
- Potential overlaps with global filings, e.g., US patents on similar chemical entities
3. Patent Validity and Enforceability
The patent's strength depends on:
- Novelty: whether the claimed compounds or methods are sufficiently new
- Inventive step: whether the invention involves an inventive leap over existing art
- Industrial applicability: demonstrated utility in therapeutic settings
Potential challenges include prior art references published before the filing date, which could undermine validity.
4. Legal and Market Implications
The patent grants exclusivity in South Korea until expiry (typically 20 years from filing), potentially influencing market entry, licensing, and litigation strategies.
Implications for Stakeholders
- Generic Manufacturers:
Must analyze claim scope carefully to identify possible patent infringement risks or opportunities for designing around.
- Innovators:
Can leverage the patent to secure market exclusivity, license revenue, or enforce rights against infringers.
- Researchers and Developers:
Need to evaluate the patent landscape before investing in similar compounds to avoid infringement or explore new chemical spaces.
Potential Opportunities and Risks
-
Opportunities:
Licensing, partnering, or developing derivatives within the patent scope. Potential to expand patent coverage through filing successor applications or improvement patents.
-
Risks:
Patent infringement suits, especially if claims are broad or overlapping with prior art; invalidation challenges if prior art evidence surfaces.
Conclusion
Patent KR20070117543 offers a significant intellectual property barrier in South Korea for drugs related to the claimed chemical entities or methods. Its scope appears to encompass comprehensive compounds and therapeutic methods, asserting broad protection in the targeted area.
Effective navigation of this patent landscape requires detailed claim interpretation, thorough prior art analysis, and strategic planning for either licensing or designing around.
Key Takeaways
- The patent claims likely cover specific chemical entities or treatment methods with detailed structural definitions.
- The scope's breadth is pivotal; broader claims offer more protection but entail higher invalidity risks.
- Validity hinges on novelty and inventive step assessed against prior art, both domestic and international.
- For industry stakeholders, the patent informs licensing strategies, competition planning, and R&D directions.
- Maintaining vigilance over patent renewals and potential patent challenges is vital for sustained market presence.
FAQs
1. What is the core invention protected by patent KR20070117543?
While specific structural details are proprietary, it typically protects a novel pharmaceutical compound or method of treatment related to the chemical entity disclosed in the claims.
2. How broad are the claims in this patent?
Claims' breadth depends on structural scope and functional language; generally, they aim to balance broad protection with validity, but detailed claims analysis is required for exact scope.
3. Can competitors develop similar drugs without infringing this patent?
Potentially, if they design around the specific chemical structures or methods claimed, but careful mapping of the patent claims is essential to avoid infringement.
4. Is this patent enforceable in other countries?
If part of a patent family, similar patents may exist globally. Enforcement depends on filing, validity, and litigation in corresponding jurisdictions.
5. What strategies can patent holders adopt regarding this patent?
Options include licensing, asserting rights against infringers, filing continuation or improvement patents, or challenging the patent's validity if necessary.
References:
[1] South Korea Patent Database, KR20070117543
[2] World Intellectual Property Organization, PatentScope reports on related filings
