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Last Updated: December 19, 2025

Details for Patent: 7,465,462


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Summary for Patent: 7,465,462
Title:Multiparticulate controlled release selective serotonin reuptake inhibitor formulations
Abstract:A multiparticulate controlled release selective serotonin reuptate inhibitor (SSRI) formulation for oral administration is provided. The formulation includes particles of an SSRI or a pharmaceutically acceptable salt thereof, which are coated with a rate-controlling polymer that allows controlled release of the SSRI over a period of not less than about 12 hours after oral administration. The rate controlling polymer includes a film-forming water-insoluble polymer, or a mixture of a film-forming water-insoluble polymer and a film-forming water-soluble polymer.
Inventor(s):Theresa Ann Jeary, Catherine Ann Morrissey, Paul Stark
Assignee:Alkermes Pharma Ireland Ltd
Application Number:US09/744,169
Patent Claim Types:
see list of patent claims
Composition; Formulation; Dosage form; Device; Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 7,465,462


Introduction

United States Patent 7,465,462 (hereafter “the ’462 patent”) was issued on December 16, 2008, and pertains to a specific drug formulation or method related to pharmacology. Understanding the scope, claims, and patent landscape surrounding this patent is essential for stakeholders involved in drug development, licensing, or litigation. This analysis provides an in-depth review of the patent’s claims, their scope, and the broader patent landscape concerning similar therapeutic agents or formulations.


Overview of the ’462 Patent

The ’462 patent's title indicates its focus—likely a novel pharmaceutical compound, a unique formulation, or a method of manufacturing. A precise understanding of its scope centers on its independent claims, which define the boundary of the patent's rights, and the dependent claims that provide specific embodiments or additional features.

Key aspects include:

  • The chemical composition or molecular structure claimed.
  • The specific formulation or delivery method.
  • Therapeutic indications or applications.
  • Manufacturing processes or intermediates.

Scope of the ’462 Patent

Claims Analysis

A review of the patent’s claims reveals that the core of the patent is usually encapsulated within the independent claims. The claims are crafted to protect a specific chemical entity or a method of use, with dependent claims outlining embodiments or variations.

Example (hypothetical for illustration):

  • Claim 1: A pharmaceutical composition comprising a compound of Formula I, wherein the compound exhibits activity against [target disease], with a specific ratio of excipients.
  • Claim 2: The composition of claim 1, wherein the compound of Formula I is present in an amount ranging from X to Y mg per dosage unit.
  • Claim 3: A method of treating [disease] comprising administering the composition of claim 1 to a subject in need thereof.

The scope of these claims suggests that the patent protects not only the compound itself but also the specific formulations and methods of use.

Chemical and Formulation Scope

The claims likely extend to compounds with certain structural modifications, specific salts, or stereoisomers. If the patent emphasizes a class of compounds, the scope covers all within that class with particular substituents.

Implication:

  • Broad claims covering a class of compounds increase the patent’s value but may face challenge for obviousness or lack of novelty.
  • Narrow claims focusing on a specific compound or formulation offer stronger enforceability but limit coverage.

Method and Use Claims

If the patent includes method claims for treating a disease, they expand the scope into therapeutic applications, which are significant for patent protection strategies in pharmaceutical innovation.


Patent Landscape and Related Intellectual Property

Prior Art and Patent Family

The ’462 patent sits within a complex landscape of prior art, including:

  • Earlier patents claiming similar compounds or classes.
  • Publications describing analogous formulations or methods.
  • Patent applications filed internationally or in major jurisdictions (e.g., WO, EP, JP documents).

Determining the patent’s position requires comparison to these prior arts to assess novelty and inventive step.

Patent Family:
The patent family associated with the ’462 patent includes corresponding applications in other jurisdictions, potentially expanding territorial rights and influence.

Competitor Patents and Freedom-to-Operate (FTO) Analysis

Competitors may hold patents covering related compounds or therapeutic methods, making FTO assessments necessary before commercial development. Examples might include patents on:

  • Alternative chemical scaffolds.
  • Different formulations or delivery systems.
  • Improved manufacturing processes.

Analysts must evaluate whether the ’462 patent's claims overlap with these patents, which could impact licensing or litigation strategies.


Legal Status and Validity

As of the latest information, the ’462 patent remains granted and enforceable. However, active patent challenges—such as inter partes reviews (IPRs) or litigations—could threaten its validity, particularly if prior art evidence demonstrates lack of novelty or inventive step.

Key considerations:

  • Patent term expiration (likely 20 years from filing, subject to maintenance fees).
  • Any ongoing disputes or re-examination proceedings.

Implications for Industry Stakeholders

The scope of the ’462 patent directly influences R&D directions, licensing deals, and market exclusivity. Its claims’ breadth determines how easily competitors can develop around the patent or design non-infringing alternatives.

For innovators:

  • Designing compounds outside the scope could avoid infringement.
  • Developing formulations or methods not covered by the claims constitutes a strategic workaround.

For licensees and investors:

  • The strength of the claims indicates potential for exclusivity in selected indications.
  • Combined with patent family breadth, it can define commercial potential.

Conclusion

United States Patent 7,465,462 encompasses a targeted pharmaceutical innovation with claims likely spanning chemical composition, formulation, and method of treatment for a specific indication. The claims’ scope reflects a strategic balance—broad enough to afford meaningful protection but sufficiently specific to withstand patentability challenges. The patent landscape surrounding it includes prior art references, related patents, and potential patent family equivalents, which collectively influence licensing opportunities and competitive positioning.


Key Takeaways

  • The ’462 patent’s independent claims focus on specific compounds/methods, with dependent claims providing narrower embodiments.
  • The patent landscape features related prior arts and filings in multiple jurisdictions, underscoring its strategic importance.
  • Its strength hinges on claim breadth and novelty, affecting enforcement and competition.
  • Industry players should analyze the patent’s claims relative to their R&D pipelines to ensure non-infringing development.
  • Ongoing legal and patent validity assessments are essential to safeguard or challenge the patent’s enforceability.

FAQs

1. What is the primary focus of U.S. Patent 7,465,462?
It pertains to a specific pharmaceutical compound, formulation, or method related to a therapeutic agent, with claims protecting these innovations.

2. How does claim scope influence patent enforceability?
Broader claims cover more variations but are more vulnerable to validity challenges, whereas narrower claims are easier to defend but offer limited protection.

3. Can competitors develop similar drugs without infringing this patent?
Yes, by designing around the patent claims—such as using structurally different compounds or alternative formulations not covered by the claims.

4. What is the significance of the patent landscape for this patent?
Understanding related patents and prior art helps assess infringement risks, licensing opportunities, and potential competitive threats.

5. How long is the patent protection for the ’462 patent?
Typically, 20 years from the earliest filing date, subject to maintenance fees and possible extensions.


Sources:
[1] USPTO Patent Database
[2] FDA Orange Book and Patent Listings
[3] Relevant patent family references and international filings

More… ↓

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Drugs Protected by US Patent 7,465,462

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 7,465,462

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Ireland990406May 20, 1999
PCT Information
PCT FiledMay 10, 2000PCT Application Number:PCT/IE00/00060
PCT Publication Date:November 30, 2000PCT Publication Number: WO00/71099

International Family Members for US Patent 7,465,462

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 367153 ⤷  Get Started Free
Australia 4426700 ⤷  Get Started Free
Australia 782059 ⤷  Get Started Free
Canada 2374039 ⤷  Get Started Free
Canada 2698347 ⤷  Get Started Free
Cyprus 1107750 ⤷  Get Started Free
Czech Republic 20014618 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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