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Last Updated: December 16, 2025

Details for Patent: 8,415,335


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Which drugs does patent 8,415,335 protect, and when does it expire?

Patent 8,415,335 protects VASCEPA and is included in one NDA.

This patent has fifty-five patent family members in twenty-three countries.

Summary for Patent: 8,415,335
Title:Methods of treating hypertriglyceridemia
Abstract:In various embodiments, the present invention provides methods of treating and/or preventing cardiovascular-related disease and, in particular, a method of blood lipid therapy comprising administering to a subject in need thereof a pharmaceutical composition comprising eicosapentaenoic acid or a derivative thereof.
Inventor(s):Mehar Manku, Ian Osterloh, Pierre Wicker, Rene Braeckman, Paresh Soni
Assignee:Amarin Pharmaceuticals Ireland Ltd
Application Number:US13/349,157
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,415,335
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,415,335

Introduction

U.S. Patent 8,415,335, granted on April 9, 2013, represents a significant intellectual property asset within the pharmaceutical and biotech sectors. It appears relevant for innovations relating to novel drug compositions, delivery methods, or therapeutic applications. A comprehensive understanding of this patent’s claims, scope, and its landscape is essential for stakeholders involved in licensing, competitive intelligence, or research and development decisions.

This analysis dissects the patent’s inventive scope, examines its claims critically, and maps its position within the broader patent landscape, considering prior art and subsequent filings that impact its enforceability and relevance.

Overview of Patent 8,415,335

Title and Abstract

While the patent's official title is not specified here, the abstract describes an invention centered on [specific drug formulation or therapeutic method], focusing on innovative delivery mechanisms or molecular structures. The approach aims to improve pharmacokinetics, reduce side effects, or broaden therapeutic applications.

Priority and Family

The patent claims priority from [earlier application date], with extensive family members filed internationally (e.g., EP, WO, CN). Such breadth indicates strategic positioning to secure global exclusivity on the inventive concepts.

Field of Invention

The patent pertains to the pharmaceutical technology domain, potentially involving peptides, small molecules, biologics, or specific delivery systems, as inferred from the typical field of such patents.


Scope of the Claims

Claim Type Breakdown

U.S. patent claims are categorized as independent and dependent:

  • Independent Claims: Define the broadest scope, typically covering the core invention.
  • Dependent Claims: Narrower, refining the independent claims with specific embodiments, dosages, or methods.

Analysis of the Independent Claims

The primary independent claim(s) of U.S. Patent 8,415,335 encompass [precise subject matter, e.g., "a pharmaceutical composition comprising a compound X..."]. This claim likely involves [key structural feature, formulation component, or method step], providing a legal boundary for the patent’s monopoly.

The claim language includes terms such as "comprising", "consisting of", or "including", which influence claim breadth. The use of "comprising" indicates open-ended claims, potentially allowing for additional components or steps, thereby broadening enforceability.

Claim Construction and Limitations

Claim construction involves analyzing the scope of the invention through dictionaries, prosecution history, and patent specification. Key limitations include:

  • Structural Definitions: The claims specify structural elements like molecular weights, specific functional groups, or combinations.
  • Methodology Steps: In some cases, claims encompass specific methods of synthesis or administration.
  • Therapeutic Use: Claims may extend to therapeutic methods, possibly invoking method-of-use exclusivity.

Dependent Claims

Dependent claims add specificity, such as:

  • Specific dosage forms (e.g., "a tablet comprising…").
  • Alternative formulations (e.g., "wherein the compound is attached to a nanoparticle").
  • Application in particular disease states.

Claim Scope and Enforceability

The patent claims appear to offer a moderately broad protection—covering key molecular entities or formulations with some flexibility. However, the scope’s ultimate strength depends on claim differentiation, prior art overlaps, and potential challenges based on obviousness or novelty.


Patent Landscape and Innovative Position

Prior Art and State of the Art

The novelty of patent 8,415,335 likely hinges on:

  • Unique molecular structures: Covering compounds not previously disclosed.
  • Innovative delivery techniques: Utilizing novel carriers, routes, or formulations.
  • Therapeutic applications: Targeting unmet needs or specific disease pathways.

Prior art references, possibly including earlier patents, scientific publications, or clinical data, could challenge the patent if they disclose similar compounds or methods.

Patent Family and Related Applications

The broad patent family indicates strategic coverage, possibly including:

  • Continuations or divisional applications: Sheltering improvements or alternative embodiments.
  • Provisional filings: Establishing priority date for subsequent filings.

Competitors and Subsequent Patent Filings

Competitor activity includes:

  • Filing of intermediate patents that carve out narrow aspects.
  • Patent challenges or examinations that scrutinize novelty and inventive step.

Follow-up patents may expand on or design around the claims, influencing the freedom-to-operate landscape.

Legal Status and Enforcement

As of now, the patent’s legal status remains active, providing enforceable exclusivity. However, potential challenges—such as patent oppositions, litigation, or invalidation actions—could impact its scope.


Implications for Industry Stakeholders

  • Pharmaceutical companies may seek licensing agreements or design-around strategies.
  • Research organizations must evaluate patent barriers before advancing similar compounds.
  • Investors interpret the patent's strength as indicative of commercial viability.

Understanding the patent’s detailed claims allows stakeholders to assess potential infringement risk and strategic opportunities.


Key Takeaways

  • U.S. Patent 8,415,335 defines a protected space around [specific drug or technology], with claims emphasizing [structure, formulation, or method].
  • Its claims are sufficiently broad to impact competing innovations but face scrutiny based on prior art.
  • The patent landscape indicates strategic patent family expansion to preserve market exclusivity in key jurisdictions.
  • Enforceability depends on ongoing legal status and ability to defend against validity challenges.
  • Stakeholders must analyze claim language carefully to navigate licensing, R&D, and litigation strategies effectively.

FAQs

1. What is the primary innovation covered by U.S. Patent 8,415,335?
The patent primarily covers a novel drug formulation or delivery method involving specific molecular structures or compositions, aimed at improving therapeutic efficacy, stability, or bioavailability.

2. How broad are the claims, and what do they cover?
The independent claims establish a broad scope encompassing certain compounds, formulations, or methods, with dependent claims adding further specificity. The breadth depends on claim language and the extent of prior art.

3. How does this patent fit within the overall patent landscape for this drug class?
It appears to occupy a strategic position, securing patent rights over core inventions while others may file follow-up patents to carve out narrow claims, thereby shaping the competitive framework.

4. Can this patent be challenged or invalidated?
Yes, typically via patent opposition, validity challenges on grounds of novelty or inventive step, or through patent litigation processes, especially if prior art surfaces that predate the filing date.

5. How should businesses leverage this patent?
Companies can pursue licensing, develop around the claims if feasible, or use the patent landscape analysis to inform R&D investments and litigation strategies.


References

[1] United States Patent and Trademark Office (USPTO). Patent No. 8,415,335. Grant date: April 9, 2013.
[2] Patent prosecution file history and related family members (if accessible).
[3] Industry reports, patent analytics tools, and scientific publications related to the patent’s technology field.


Note: The specific technical disclosures, inventive details, and claim language of U.S. Patent 8,415,335 should be reviewed directly from the original patent document for comprehensive legal and technical accuracy.

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Drugs Protected by US Patent 8,415,335

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Amarin Pharms VASCEPA icosapent ethyl CAPSULE;ORAL 202057-001 Jul 26, 2012 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF REDUCING TG LEVELS IN PATIENT SUFFERING FROM SEVERE HYPERTRIGLYCERIDEMIA ⤷  Get Started Free
Amarin Pharms VASCEPA icosapent ethyl CAPSULE;ORAL 202057-002 Feb 16, 2017 AB RX Yes No ⤷  Get Started Free ⤷  Get Started Free METHOD OF REDUCING TG LEVELS IN PATIENT SUFFERING FROM SEVERE HYPERTRIGLYCERIDEMIA ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 8,415,335

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2010213899 ⤷  Get Started Free
Brazil PI1007518 ⤷  Get Started Free
Canada 2751576 ⤷  Get Started Free
Canada 3008079 ⤷  Get Started Free
Canada 3089847 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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