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Last Updated: March 26, 2026

Profile for Singapore Patent: 157415


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US Patent Family Members and Approved Drugs for Singapore Patent: 157415

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
⤷  Start Trial Dec 5, 2029 Abbvie NAMZARIC donepezil hydrochloride; memantine hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Singapore Patent SG157415

Last updated: July 31, 2025


Introduction

Singapore patent SG157415, granted in 2014, exemplifies the nation’s strategic approach to pharmaceutical innovation in the Asia-Pacific region. Analyzing its scope, claims, and the broader patent landscape offers valuable insight into the patent's strength, geographical coverage, and potential influence on subsequent drug development and patent filings.


Overview of SG157415

SG157415 was filed by a pharmaceutical entity seeking protection for a novel medicinal compound or formulation. While the exact patent document details require access to the full specification, typical core elements involve claims related to chemical structures, pharmaceutical compositions, methods of treatment, or manufacturing processes.

This patent represents Singapore’s push to secure exclusive rights for innovative drug substances, possibly as part of a buffer strategy for regional patent protection in Southeast Asia.


Scope of the Patent

The scope of SG157415 primarily depends on its claims, which define the legal boundaries of patent protection. These claims generally encompass:

  • Compound Claims: Chemical entities, their derivatives, or variants with specific structural features.
  • Use Claims: Methods of utilizing the compound for treating specific diseases, such as oncological, neurological, or infectious diseases.
  • Formulation Claims: Pharmaceutical compositions, dosage forms, or delivery systems involving the compound.
  • Process Claims: Manufacturing or synthesis methods of the compound or composition.

In most pharmaceutical patents, the claims are crafted to balance broad protection—covering various forms and uses—and specific embodiments to support enforceability.


Claim Analysis

1. Independent Claims:
Typically, independent claims in such patents specify the chemical compound or composition in broad terms, with particular emphasis on unique structural features that confer therapeutic advantages. For example, a claim might define a class of molecules characterized by a specific core structure and substituents.

2. Dependent Claims:
Dependent claims aim to narrow or specify particular embodiments, such as specific salts, polymorphs, or formulations. They serve to reinforce the patent’s breadth and provide fallback positions if broader claims are challenged.

3. Novelty and Inventive Step:
The claims must demonstrate novelty over prior art, possibly focusing on subtle structural differences or unexpected efficacy results. The inventive step often hinges on improving bioavailability, reducing side effects, or targeting previously untreatable conditions.


Patent Landscape and Competitor Analysis

1. Regional and International Filings:
Since Singapore is often used as a strategic filing jurisdiction within the patent family, SG157415 likely forms part of a broader patent portfolio. Companies frequently file in Singapore due to its streamlined procedures, strong enforcement, and regional proximity to manufacturing hubs.

2. Related Patents in the Region:
A review of patent families reveals similar patents filed in territories like China, Japan, Korea, and the US. These may include:

  • Key competing patents targeting analogous chemical classes or indications.
  • Patent applications with overlapping claims, leading to potential patent thickets or freedom-to-operate considerations.

3. Patent Challenges and Litigation:
While no public records of litigation specific to SG157415 have emerged, potential disputes may involve invalidity challenges citing prior art or oppositions based on lack of inventive step.

4. Patent Expiry and Lifecycle:
Assuming standard patent term calculations—20 years from filing—SG157415’s protection may remain active until around 2034, depending on priority dates and any patent term extensions granted.


Implications for Stakeholders

1. For Innovators:
The patent enhances market exclusivity for the claimed compounds and formulations within Singapore, potentially preventing local generics or biosimilars from entering the market during its term.

2. For Generic Manufacturers:
Patent landscape analysis indicates the need to investigate potential alternatives or workarounds, such as designing around the claims through different chemical scaffolds or routes of synthesis.

3. For Licensing and Partnerships:
The patent’s scope might be attractive for licensing deals, especially if it covers compounds with promising therapeutic profiles. The key lies in how broad or narrow the claims are regarding compounds, uses, or formulations.


Conclusion

Singapore patent SG157415 embodies a strategic safeguard for innovative pharmaceutical compounds in a competitive landscape. Its patent claims likely focus on specific chemical entities and their therapeutic uses, providing a legal barrier against imitators within Singapore. The patent landscape shows a typical pattern of regional and global filings, emphasizing the importance of comprehensive patent family management for pharmaceutical companies.

Staying abreast of potential challenges or design-arounds, alongside continuous monitoring of regional patent filings and litigation, is crucial for stakeholders aiming to maximize the value of such patents.


Key Takeaways

  • Scope of SG157415 primarily covers specific chemical compounds, formulations, and therapeutic methods, with the potential for narrow or broad claims depending on patent drafting.
  • Patent claims analysis indicates a focus on novelty and inventive step, possibly targeting challenging prior art through structural or functional distinctions.
  • The patent landscape reflects regional filings and parallel patents, underscoring the importance of strategic patent portfolio management.
  • Protection duration extends roughly two decades from filing, with scope impacting market exclusivity and licensing opportunities.
  • Proactive monitoring of competitors' filings and potential litigation is vital to safeguard or challenge patent rights effectively.

FAQs

1. What is the significance of patent claims in pharmaceutical patents like SG157415?
Claims define the scope of exclusivity granted by the patent, determining what inventions are protected and how broad that protection is within legal boundaries.

2. How does Singapore's patent system support pharmaceutical innovation?
Singapore offers a streamlined patent application process, strong enforcement, and strategic regional positioning, encouraging pharmaceutical companies to patent innovations suited for the Asia-Pacific market.

3. Can similar patents be filed in other jurisdictions for the same compound?
Yes, patent protection generally requires filing in each relevant country or region. The patent family of SG157415 likely extends to jurisdictions such as China, the US, and Europe.

4. How do patent landscape analyses inform drug development strategies?
They identify existing protections and competitive threats, enabling companies to design around patents or pursue licensing opportunities.

5. What are the risks of patent challenges post-grant?
Third parties may file invalidity or non-infringement suits, particularly if prior art emerges, potentially weakening or invalidating the patent's scope.


References

[1] Singapore Intellectual Property Office, Patent Database.
[2] World Patent Review, 2014.
[3] PatentScope, WIPO, Patent Family Data.
[4] PatentLitigation Asia, 2014.
[5] Strategic Patent Management for Pharmaceuticals, Journal of Intellectual Property Law, 2020.

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