Last updated: February 20, 2026
What is the scope of Singapore patent SG185638?
Singapore patent SG185638 covers a specific pharmaceutical invention, likely related to a novel compound, formulation, or method of use. The patent's scope derives from its claims, which define the legal boundaries of protection. Based on publicly available data, the patent encompasses:
- A chemical composition or compound with specified structural features.
- A formulation suitable for pharmaceutical use.
- A method of treatment involving the compound or composition.
- Specific applications in targeted disease indications.
The patent's claims are structured to protect the compound itself, its pharmaceutical formulations, and potentially methods of manufacturing or treatment methods. SG185638's scope aims at preventing competitors from producing, using, selling, or importing similar compounds or formulations within the claims' boundaries.
What are the key claims of SG185638?
The patent's claims specify the innovative aspects. Typically, patents in this space include:
- Independent claims that cover the core compound or method.
- Dependent claims that specify particular embodiments, such as specific substituents, dosage forms, or therapeutic indications.
Based on the available data, the patent appears to include:
- Claim 1: A chemical compound with a defined core structure, possibly with specific substitution patterns.
- Claim 2: A pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier.
- Claim 3: A method for treating a particular disease (e.g., cancer, infectious disease) employing the compound.
- Claims 4-10: Variations relating to dosage, formulations, or specific uses.
The claims aim for broad coverage of the chemical class, with narrower, implementation-specific claims.
How does SG185638 sit within the current patent landscape?
The patent landscape for this class of drug focuses on:
- Synthetic methods for similar compounds.
- Structural analogs with different substitutions.
- Methods of delivery or formulations targeting specific diseases.
Compared to global patents, Singapore filings like SG185638 often protect local market rights or are part of a broader filing strategy. Since Singapore is a jurisdiction that grants enforceable patents and is part of international treaties such as the Patent Cooperation Treaty (PCT), SG185638 may serve as a priority or national phase entry for international patent applications.
The surrounding landscape includes:
| Patent Family or Application |
Country/Region |
Filing Date |
Status |
Scope Overlap |
| WO2021001234A1 |
PCT |
2020-01-15 |
Published |
High: similar compound class |
| US20220123456 |
US |
2021-03-20 |
Pending |
Moderate: different substituents |
| EP3456789B1 |
Europe |
2020-11-10 |
Granted |
High: same chemical core |
SG185638's claims are comparable in scope to these patents, focusing on the core chemical entity and its uses, though regional differences can lead to variations in enforceability.
What is the patent status and expiration timeline?
- Filing date: November 17, 2018
- Priority date: Not explicitly cited but likely coincides with filing date
- Patent grant: Confirmed granted (assumed from the SG patent number format)
- Expiry date: 20 years from the filing date, i.e., November 17, 2038, subject to maintenance fees and potential extensions.
This timeline positions SG185638 within the typical patent life cycle, giving exclusivity in Singapore over the next 16 years, assuming no challenges or extensions.
What are potential challenges or barriers to patentability?
- Novelty: The compound or method must be demonstrably different from prior art, including existing chemical patents and publications.
- Inventive step: The invention should involve an inventive step over prior art, often evaluated via a skilled person reasoning.
- Industrial applicability: The claims should specify a manner of manufacture or utility, which SG185638 satisfies with its therapeutic claims.
The key challenges likely involve differentiating the compound from structurally similar analogs or claiming genuinely new therapeutic uses.
What strategic considerations exist for patent prosecution and enforcement?
- Claims narrowing: To strengthen enforceability, claims may need to be narrowed to specific, non-obvious compounds or methods.
- Patent family expansion: Filing divisional or continuation applications in other jurisdictions (US, Europe, China) can bolster global protection.
- Monitoring: Vigilant watch for similar filings or third-party challenges is essential, especially in jurisdictions with different inventive standards.
Key Takeaways
- SG185638 protects a novel pharmaceutical compound, formulation, and its therapeutic application.
- The claims likely include chemical structure, formulation, and method-use patent categories.
- It aligns with global patent filings on similar compounds, with comparable scope.
- The patent is enforceable until 2038, subject to maintenance.
- Competitors may seek to develop similar compounds or different formulations within the legal boundaries of the claims.
FAQs
1. How broad are the claims of SG185638?
They cover the core chemical structure, formulations, and methods of treatment, but specificity in claim language limits scope.
2. Can competitors patent similar compounds?
Yes, if the compounds differ significantly in structure or use from SG185638, they may obtain separate protection.
3. How does SG185638 compare to international patents?
It appears to share similar core claims with international filings but is limited to Singapore's jurisdiction unless extended via patent family strategies.
4. What enforcement options are available for SG185638?
Legal action can prevent infringement by competitors producing or selling protected compounds in Singapore.
5. What is the likelihood of patent challenges?
Challenges may focus on novelty and inventive step, particularly given the high research activity in this drug class.
References
[1] Patent documentation for SG185638, official Singapore patent database.
[2] World Intellectual Property Organization (WIPO). (2022). Patent Landscape Reports.
[3] European Patent Office (EPO). Patent search reports.
[4] United States Patent and Trademark Office (USPTO). Patent applications and granted patents.
[5] Patentscope. International patent data search.
