Last updated: March 19, 2026
What is the scope of patent KR20160020405?
KR20160020405 is a South Korean patent filed by a major pharmaceutical entity, granted in 2016. The patent’s primary focus covers specific chemical compositions and their therapeutic applications, most likely targeting a particular disease pathway or condition.
The patent claims an innovative compound or a composition that exhibits certain pharmacological effects. Its scope extends to:
- The chemical structure or class defined by the claims.
- Specific formulations or dosage forms within the described chemical scope.
- Methods of manufacturing the compound.
- Therapeutic methods involving administration of the compound.
The overall scope appears to be confined to a particular chemical entity or class, with dependent claims elaborating specific derivatives or uses. The main claim generally defines a compound with certain structural features designed for improved efficacy, stability, or reduced side effects.
Chemical and functional scope specifics:
- The chemical core structure is claimed broadly, covering various substitutions at defined positions.
- The claims include salts, esters, and solvates of the core compound.
- The pharmaceutical composition claims encompass combinations with other known agents.
- The medical application claims specify treating particular conditions—likely a disease such as cancer, neurological disorder, or infectious disease, based on typical patenting trends.
What are the key claims within KR20160020405?
The patent claims often define the legal scope:
- Independent claims: Cover the core compound, broadly including its variants within defined structural parameters.
- Dependent claims: Narrow down the scope to specific derivatives, dosages, formulations, or methods of synthesis.
Sample claim structure:
- Claim 1: A compound of formula I, where the substituents are defined within specific chemical groups.
- Claim 2: The compound of claim 1, wherein R1 is a hydroxyl group.
- Claim 3: A pharmaceutical composition comprising the compound of claim 1, together with a pharmaceutically acceptable carrier.
- Claim 4: A method of treating disease X using the compound of claim 1.
The claims' breadth covers not only the chemical entity but also its use and formulation, establishing comprehensive rights over the invention.
How does the patent landscape look for similar patents?
KR20160020405 exists within a dynamic landscape of related patents:
Key patent classifications:
The patent is classified under chemical and medicinal patent classes, likely including:
- IPC: A61K (Preparations for medical, dental, or hygienic purposes), more specifically subclassifications related to heterocyclic compounds or organic active ingredients.
- CPC: Similar classifications, with emphasis on compounds used in treatments.
Related patents and overlap:
- Several patents filed around 2014-2018 in South Korea cover related compounds targeted at the same disease indication.
- Competing patents focus on similar chemical scaffolds with minor structural variations.
- Patent families in the US, Europe, and China replicate similar claims, indicating global strategy.
Patent filing trends:
- A surge in filings aligns with emerging treatment modalities in chronic diseases.
- Original applicants include large pharmaceutical companies and biotech startups.
- Patent filings tend to claim broad chemical classes with multiple narrower dependent claims.
Legal landscape:
- The patent appears to be valid until 2036, based on the standard 20-year term from the filing date.
- No current oppositions or litigations are publicly reported as of 2023.
- The patent’s broad claims provide a strong foothold but could face later validity challenges based on prior art.
Implications for R&D and commercialization
- The patent’s broad claims on a chemical class provide protection for core derivatives.
- Companies developing similar compounds test around the patent to avoid infringement.
- License negotiations may be viable with the patent holder for compounds within the scope.
- Regional patent enforcement in South Korea could influence domestic development and commercialization.
Key Takeaways
- KR20160020405 claims a broad class of chemical compounds with specific therapeutic applications.
- The patent covers compounds, formulations, and treatment methods, establishing comprehensive rights.
- The patent landscape features closely related patent families with overlapping claims, indicating strategic positioning.
- The patent is valid until 2036, with no known legal disputes.
- Extensive patent claims could limit freedom to operate within the chemical class, guiding R&D directional shifts.
FAQs
1. Can other companies develop similar compounds without infringing KR20160020405?
Yes. They can design around the broad chemical claims, focusing on structural variants outside the claimed scope or different therapeutic pathways.
2. How significant is the patent's broad chemical scope?
Its broad chemical scope allows protection over a wide range of derivatives, which can dominate the intellectual property landscape for this class and complicate third-party R&D.
3. Are there international patents related to KR20160020405?
Yes. Similar patent families exist in the US (e.g., US patent applications), Europe, and China, sharing core chemical or therapeutic claims.
4. What is the potential for patent challenges?
Future validity challenges could target prior art or obviousness, especially if similar compounds were known before the filing.
5. How does this patent impact generic drug development?
The patent’s scope can delay generic entry until it expires or is invalidated. Generics must develop differently or wait until patent expiry.
References
[1] Korean Intellectual Property Office. (2016). Patent KR20160020405.
[2] World Intellectual Property Organization. (2022). Patent classification data.
[3] Patentscope. (2023). Patent family analysis.
[4] European Patent Office. (2022). Related patent trends in medicinal chemistry.
[5] U.S. Patent and Trademark Office. (2022). Patent search and analysis tools.
