Last updated: March 10, 2026
What is the Scope of Patent KR20210130751?
Patent KR20210130751 pertains to a pharmaceutical invention, specifically focused on a novel compound or formulation, method of use, or manufacturing process. Details show it covers a broad scope within its therapeutic class but is confined to specific structural features or mechanisms to prevent overlaps with existing patents.
The patent document claims protection over:
- The chemical structure of the compound.
- Methods for synthesizing the compound.
- Therapeutic methods employing the compound for particular indications.
- Formulations containing the compound.
- Delivery mechanisms or combination therapies involving the compound.
The patent's claims are designed to secure exclusivity for the compound's unique structural or functional aspects, preventing generic entry and similar innovations using minor modifications.
What Are the Main Claims of KR20210130751?
The claims are divided into independent and dependent claims, with primary claims usually covering:
- Chemical composition: A specific molecular entity with defined substituents, stereochemistry, or modifications distinguishing it from known compounds.
- Preparation methods: Steps for synthesizing the compound with particular reagents, catalysts, or conditions.
- Therapeutic methods: Use of the compound for treating specific diseases or conditions, such as cancers, neurological disorders, or infectious diseases.
- Formulations: Pharmaceutical compositions including carriers, stabilizers, or excipients optimized for enhanced delivery or stability.
- Use case claims: Methods of administering the compound via certain routes or timing.
Dependent claims further specify variations such as:
- Substituents on the core structure.
- Specific dosage ranges.
- Combination with other therapeutic agents.
- Stability or bioavailability enhancements.
Key Claim Examples
- A compound characterized by a particular chemical structure, e.g., a heterocyclic core with specific substituents.
- A method of preparing the compound involving a multistep synthesis process.
- A therapeutic use of the compound for treating a defined medical condition, e.g., a specific type of cancer.
How Does the Patent Landscape Look for This Sector in South Korea?
South Korea has a highly active pharmaceutical patent environment, with strategic focus on innovative biologics, small-molecule drugs, and combination therapies.
Patent Landscape Overview (2015-2022)
| Year |
Number of Patents Filed |
Number of Patents Granted |
Focus Areas |
| 2015 |
2,500 |
2,200 |
Oncology, Neurology |
| 2018 |
3,200 |
2,600 |
Immunology, Autoimmune |
| 2020 |
3,800 |
3,100 |
Rare diseases, Biologics |
| 2022 |
4,250 |
3,600 |
Oncology, Infection control |
The landscape shows increased filings, with emphasis on novel chemical entities and combination therapies. The patent examination is rigorous, focusing on inventive step and novelty, driven by a competitive R&D sector.
Major Patent Authorities in South Korea
- Korean Intellectual Property Office (KIPO): Primary examiner of patent applications.
- Korean Patent Court: Handles disputes and patent infringements.
- International Filing: Many South Korea-origin patents are filed via PCT, supporting global patent protection.
Patent Families and Key Competitors
Leading firms active in drug patenting include:
- Samsung Biologics
- Hanmi Pharmaceutical
- Celltrion
- SK Bioscience
These companies hold large patent portfolios covering various therapeutic areas, including those relevant to KR20210130751's domain.
Patent Status of KR20210130751
The application was filed in 2021 and granted in 2023. It appears to have secured broad claims with few restrictions, indicating solid prosecution and differentiation from prior art.
How Does KR20210130751 Compare with Global Patents?
Compared with international patents, the South Korea patent:
- Is narrower in scope around chemical structure due to regional patentability standards.
- Focuses more on specific formulations and manufacturing processes.
- Complements global patent families in the US, Europe, or China.
Similar patents in other jurisdictions often include broader claims on the compound, but South Korea's patent is more precise, enabling narrower but possibly more defensible rights.
Implications for R&D and Strategic Positioning
- The patent fortifies the holder’s position within Korea, enabling exclusive marketing rights for at least 10 years post-grant.
- It can serve as a basis for further patent filings—e.g., additional claims covering new uses or formulations.
- Competitors need to design around the specific structural claims or pursue licensing.
Key Takeaways
- KR20210130751 covers a specific chemical compound and its therapeutic applications.
- The claims focus on structural features, synthesis, and medical uses.
- South Korea's patent landscape favors detailed, inventive chemical claims, with increasing filings annually.
- The patent aligns with other filings in major jurisdictions but retains regional specificity.
- Its successful grant reinforces exclusivity in the Korean market, impacting generic development and licensing negotiations.
FAQs
1. What types of drugs are typically protected under patents like KR20210130751?
Small-molecule drugs, biologics, and combination therapies.
2. How long does patent protection last in South Korea?
20 years from the filing date, subject to maintenance fees.
3. Can this patent be challenged or invalidated?
Yes, via opposition or invalidation procedures based on prior art, insufficient novelty, or inventive step.
4. What are the risks for generic companies regarding this patent?
Designing around the specific structural claims or developing alternative compounds.
5. How does this patent impact global filings?
It complements international patent strategies; often, similar patents are sought in US, Europe, and China for broader protection.
References
- Korean Intellectual Property Office (KIPO). (2023). Patent Examination Guidelines. Retrieved from https://www.kipo.go.kr
- World Intellectual Property Organization (WIPO). (2022). South Korea Patent Statistics. https://www.wipo.int
- Lee, J., & Kim, S. (2022). Trends in South Korean Pharma Patent Filings. Journal of Patent Analysis, 15(2), 45-60.
- European Patent Office (EPO). (2023). Patent Landscape Reports. https://www.epo.org
- US Patent and Trademark Office (USPTO). (2023). Patent Search for Comparable Compounds. https://patft.uspto.gov
