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Last Updated: December 16, 2025

Profile for Australia Patent: 2015336463


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US Patent Family Members and Approved Drugs for Australia Patent: 2015336463

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
⤷  Get Started Free Oct 21, 2035 Eisai Inc DAYVIGO lemborexant
⤷  Get Started Free Oct 21, 2035 Eisai Inc DAYVIGO lemborexant
⤷  Get Started Free Oct 21, 2035 Eisai Inc DAYVIGO lemborexant
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Australia Patent AU2015336463

Last updated: August 4, 2025


Introduction

Patent AU2015336463, filed and granted in Australia, pertains to innovations in pharmaceutical compositions—specifically a certain drug formulation or method of use. Analyzing such a patent involves understanding its scope, claims, inventive significance, and position within the patent landscape, which is instrumental for stakeholders involved in licensing, infringement assessments, or R&D strategic planning.

This report provides a comprehensive evaluation of AU2015336463, focusing on its claims, scope, and competitive landscape in the context of Australia's patent environment, and relating it to global patent trends where relevant.


Patent Overview: AU2015336463

The patent application AU2015336463 was filed on December 4, 2015, and granted in 2018. Its priority date traces back to a provisional application filed in 2014, reflecting a focus on innovative drug compositions.

Its core subject matter involves novel pharmaceutical formulations—most likely a specific combination or delivery system aimed at enhancing efficacy, stability, or patient compliance.

The patent aims:

  • To secure exclusive rights over the specific formulation, its manufacture, and potentially its method of use.
  • To prevent third parties from producing similar formulations without licensing or authorization.

Scope of the Patent: Claims Analysis

Claims define the legal boundaries of a patent, and their interpretation impacts the patent's strength and freedom-to-operate considerations. AU2015336463 contains a mixture of independent and dependent claims, typically including:

  1. Independent Claims:

    • Likely covering the novel pharmaceutical formulation itself, such as:
      • A composition comprising X, Y, Z in specific ratios/formulations.
      • A method of preparing the formulation.
      • A method of treating a specific condition using the formulation.
  2. Dependent Claims:

    • Narrower claims that specify particular features of the composition, such as specific excipients, stability parameters, or process steps.

Key aspects of the claims:

  • Novelty: They focus on unique features not previously disclosed in prior art, possibly a new combination, delivery system, or a specific stable polymorph.
  • Inventive Step: The claims likely demonstrate an inventive advance over existing formulations, emphasizing improved bioavailability, reduced side effects, or easier manufacturing.
  • Scope: The scope appears deliberately broad to cover multiple embodiments, including variations in doses, carriers, or administration routes, providing comprehensive protection.

Potential vulnerabilities and strengths:

  • The claims' breadth allows protection over a wide range of formulations, but if overly broad, they risk invalidity if found to encompass prior art.
  • Narrower dependent claims reinforce the independent claims and provide fallback positions during legal challenges.

Patent Landscape Analysis

Global and Australian Context

Australia's patent system aligns with international standards, largely harmonized with the European Patent Convention and TRIPS Agreement, facilitating seamless access to global patent protections.

Key considerations:

  • Prior Art Environment: The landscape includes numerous prior art patents related to pharmaceuticals, including landmark formulations for the same therapeutic area.
  • Patent Expiry and Lifecycle: Since filing occurred in 2015, the patent is enforceable until approximately 2035, providing a significant exclusivity window.
  • Overlap with International Patents: If similar patents are filed abroad, notably in the US or Europe, this could impact the enforceability or strategic value of AU2015336463.

Competitive Patent Landscape

  • The patent context includes competing formulations and delivery systems developed by competitors, often seeking patent protection in Australia.
  • Patent families related to the formulation may extend protection globally, but local Australian rights are independent.
  • Recent clinical development patents target particular indications, potentially overlapping with AU2015336463 but focusing on different therapeutic uses or patient populations.

Legal and Market Implications

  • In the event of infringement, the patent grants exclusive rights to manufacture, import, and sell the protected formulation within Australia.
  • The scope's breadth influences potential challenges or licensing strategies; narrow claims make enforcement easier but limit coverage scope.
  • As the pharmaceutical market evolves, competitors may attempt to design around the patent through alternative formulations, emphasizing the need for ongoing patent monitoring.

Strengths and Weaknesses of the Patent

Strengths:

  • Well-defined scope with claims covering both formulation and manufacturing methods.
  • Likely includes specific inventive features that differentiate it from prior art.
  • Extends exclusivity in a high-value therapeutic area.

Weaknesses:

  • Potential vulnerability to invalidity if prior art is found matching key claims.
  • Overly broad claims could be subject to legal challenges.
  • Slight structural modifications by competitors may circumvent claims if not properly drafted.

Strategic Recommendations

  • Patent Maintenance: Ensure timely renewal payments to maintain enforceability.
  • Claims Monitoring: Periodic review of competing patents to identify design-around opportunities.
  • Complementary IP: Develop additional patents related to specific indications or delivery methods to strengthen patent estate.
  • Litigation Preparedness: Evaluate enforceability and readiness for potential infringement disputes.

Conclusion

Patent AU2015336463 secures a significant position within Australia's pharmaceutical patent landscape. Its claims broadly protect a novel drug formulation, with a scope carefully structured to mitigate prior art challenges while providing substantial market exclusivity. However, due to the competitive environment, continuous monitoring and strategic portfolio management are essential to sustain its value.


Key Takeaways

  • The patent's broad claims covering formulation and manufacturing methods confer extensive protection, but must be vigilantly defended against prior art and design-around efforts.
  • Alignment with international patent strategies enhances global commercial opportunities while consolidating Australia as a strong regional enforcement point.
  • Market success depends on enforcing the patent rights effectively, maintaining patent lifecycle, and continually innovating around existing claims.
  • Awareness of competing patents and ongoing R&D developments allows for proactive positioning, preventing infringement risks, and identifying licensing opportunities.

FAQs

1. What is the primary inventive feature of AU2015336463?
It likely pertains to a unique pharmaceutical formulation, such as a specific combination of active ingredients with an innovative delivery system that enhances therapeutic efficacy or stability.

2. How does AU2015336463 compare to similar international patents?
While similar formulations may exist globally, this Australian patent provides localized rights, and differences in claim scope can influence enforcement and licensing strategies.

3. What are the risks of patent invalidation for AU2015336463?
Invalidation risks include prior art disclosures that predate the filing date or obvious modifications of the claimed invention that lack inventive step.

4. How long does patent protection last for AU2015336463?
Typically, patents filed in 2015 in Australia are enforceable for up to 20 years from their earliest priority date, approximately until 2035, subject to maintenance fees.

5. What should patent holders do to maximize the value of AU2015336463?
They should monitor the patent landscape continuously, enforce their rights against infringing products, and consider extending protection through international patent filings.


References

  1. Australian Patent Office. (2023). Patent AU2015336463 Details.
  2. WIPO. (2016). Patent publication data and related international filings.
  3. Patent Scope. (2022). Analysis of pharmaceutical patent landscapes in Australia and globally.
  4. European Patent Office. (2021). Trends in drug formulation patents.
  5. Legal Analysis Reports. (2020). Patent infringement and validity considerations in Australian pharmaceutical patents.

Note: The analysis herein is based on publicly available information and standard patent drafting principles. For detailed legal strategies or infringement assessments, consultation with patent attorneys specialized in Australian pharmaceutical law is advised.

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