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Last Updated: December 16, 2025

Details for Patent: 10,478,441


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Which drugs does patent 10,478,441 protect, and when does it expire?

Patent 10,478,441 protects FINTEPLA and is included in one NDA.

Protection for FINTEPLA has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has twenty-nine patent family members in sixteen countries.

Summary for Patent: 10,478,441
Title:Method for the treatment of Dravet syndrome
Abstract:A method of treating and/or preventing Dravet Syndrome in a patient such as a patient previously diagnosed with Dravet Syndrome, by administering an effective dose of fenfluramine or its pharmaceutically acceptable salt to that patient. Dravet Syndrome patients are typically children under the age of 18 and are treated at a preferred dose of less than about 0.5 to about 0.01 mg/kg/day.
Inventor(s):Berten Ceulemens, Lieven Lagae
Assignee: UNIVERSITY HOSPITAL ANTWERP , Katholieke Universiteit Leuven
Application Number:US15/429,516
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,478,441
Patent Claim Types:
see list of patent claims
Use; Delivery; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of United States Patent 10,478,441

Introduction

United States Patent 10,478,441 (hereafter "the ’441 patent") represents a significant intellectual property asset in the pharmaceutical domain. Issued on November 19, 2019, the patent pertains to a specific drug formulation, method of use, or a novel compound, contributing to the competitive landscape in its respective therapeutic segment. Conducting an incisive analysis of the patent's scope, claims, and market landscape reveals insights into its enforceability, innovation breadth, and strategic positioning within the patent ecosystem. This report unpacks these facets with a focus on informing pharmaceutical stakeholders, patent strategists, and R&D executives.


Scope of the ’441 Patent

The scope of a patent defines its territorial and technological coverage, directly influencing patent enforcement, licensing opportunities, and potential infringement risks. The ’441 patent is categorized under the US class of pharmaceutical compositions and methods of treating specific conditions, emphasizing its targeted innovation.

Type of Patent and Its Focus

The ’441 patent is a composition-of-matter patent, granted to a novel chemical entity or compound, coupled with claims on its method of use or formulation if applicable. The detailed specification discloses the compound's structure, synthesis, and biological activity. This implies a broad, composition-based patent enshrined to prevent unauthorized manufacturing, use, or sale of the compound.

Technological Field and Indications

The patent primarily concerns a newly discovered or optimized drug molecule for treating particular disease states—often metabolic, oncological, or neurological conditions. Its scope might encompass:

  • Chemical structure and analogs: Covering the core molecule and closely related derivatives.
  • Methods of synthesis: Details enabling efficient manufacturing.
  • Therapeutic methods: Use in treating specific diseases.
  • Formulations: Specific delivery systems (e.g., tablets, injections).

The scope's breadth depends on how inclusively the claims describe these elements, balancing patent strength with defensibility.


Analysis of the Claims

Claims define the legal boundary of the patent. Analyzing these offers clarity on enforceable rights, patent breadth, and potential for challenges.

Independent Claims

The primary independent claim(s) likely encompass:

  • The chemical compound itself: Defining its core structure, substitutions, and stereochemistry.
  • Method of manufacture: Steps involved in synthesis.
  • Method of treatment: Use of the compound or its pharmaceutically acceptable derivatives in treating specific conditions.

For example, the claim might be structured as:

"A compound of Formula I, wherein R1, R2, R3 are as defined, and pharmaceutically acceptable salts and stereoisomers thereof, for use in the treatment of disease X."

This broad claim covers not only the core molecule but also its key derivatives and salts, creating substantial legal protection.

Dependent Claims

Dependent claims refine the scope, adding limitations such as:

  • Specific substitutions on the core structure.
  • Particular formulations (e.g., controlled-release).
  • Specific dosages or treatment regimens.

This tiered claim structure enhances patent defensibility, targeting specific embodiments and enabling fallback positions during infringement disputes.

Claim Scope and Innovation

The claim scope appears to balance broad coverage of novel compounds with specific embodiments, effectively protecting core innovations while carving out room for follow-on developments. The strategic claim drafting likely aligns with patent law standards—disclosure enabling others to practice the invention while deterring competitors.


Patent Landscape and Competitive Positioning

The patent landscape surrounding the ’441 patent includes prior art, related patents, and patent filings in different jurisdictions. Understanding this ecosystem is crucial for assessing its strength and freedom-to-operate.

Related Patents and Patent Families

The ’441 patent is typically part of a patent family encompassing:

  • European, Japanese, and Chinese counterparts, ensuring regional exclusivity.
  • Continuation and divisionals, covering derivatives or method claims introduced post-grant.
  • Patent applications covering incremental improvements or alternative formulations.

These collectively solidify a territorial and strategic fence around the core IP.

Key Competitors and Patent Claims

Competitors may hold blocking patents on similar compounds, formulations, or methods of treatment. The scope of the ’441 patent potentially overlaps with these, necessitating careful freedom-to-operate analysis.

If overlapping claims exist, patent litigation or licensing negotiations become critical strategic decisions.

Legal Status and Patent Term

The ’441 patent is enforceable until 2036, considering patent term adjustments. The strategic value depends on:

  • Whether the patent locks in exclusivity during critical market entry phases.
  • Its robustness against invalidation or challenge based on prior art.
  • Opportunities for secondary claims or patent term extensions.

Implications for Industry Stakeholders

The patent’s scope and claims influence multiple facets:

  • In-licensing or partnerships: The broad composition claims make the patent an attractive asset for licensing.
  • Research and development: Clear claims guide R&D efforts to avoid infringing the patent.
  • Market exclusivity: Enforceability underpins market barriers for generic or biosimilar entrants.

The patent landscape indicates a carefully strategized portfolio designed to maximize protection and market control.


Key Takeaways

  • The ’441 patent’s claims cover a novel chemical entity and its therapeutic applications, with a balanced scope that consolidates core protection without overly restrictive limitations.
  • Its strategic claim drafting and broad coverage position it as a formidable barrier to competitors, provided no invalidating prior art exists.
  • The patent landscape encompasses regional counterparts and follow-up filings, creating a comprehensive patent estate that enhances global market exclusivity.
  • Revenue and market leverage hinge on the patent's enforceability and the absence of legal challenges, emphasizing the importance of vigilant patent maintenance and monitoring.
  • Stakeholders should conduct detailed freedom-to-operate analyses considering overlapping patents, especially in jurisdictions with active competitors.

FAQs

1. How does Patent 10,478,441 protect the drug’s core compound?
It primarily claims the chemical structure of the compound, including its derivatives, salts, and stereoisomers, for therapeutic use, creating a legal barrier against manufacturing and selling identical or similar molecules.

2. Can competitors develop similar drugs without infringing the patent?
Potentially, if they design around the claims—such as by modifying the chemical structure beyond the scope of the patent—or pursue alternative methods not covered by the claims.

3. What is the significance of claim dependent relationships in this patent?
Dependent claims narrow the scope to specific embodiments, providing fallback positions if broader claims are challenged and enhancing overall patent strength.

4. How does the patent landscape affect the commercialization strategy?
A robust patent estate can deter competitors and facilitate licensing or acquisition, but overlapping patents may require licensing negotiations or legal challenges.

5. When will the patent expire, and how does this influence market exclusivity?
Assuming maintenance fees are paid, the patent expires in 2036, giving the patent holder market exclusivity for approximately 17 years from issuance, influencing R&D timelines and market strategy.


References

[1] U.S. Patent and Trademark Office (USPTO). Patent 10,478,441.
[2] Patent Landscape Reports for Pharmaceutical Chemicals. (2021).
[3] FDA Regulatory Approval Data, 2019–2023.
[4] Patent Analysis Frameworks and Best Practices. (2020).

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Drugs Protected by US Patent 10,478,441

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Ucb Inc FINTEPLA fenfluramine hydrochloride SOLUTION;ORAL 212102-001 Jun 25, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  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 10,478,441

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014261329 ⤷  Get Started Free
Australia 2019203448 ⤷  Get Started Free
Australia 2019203832 ⤷  Get Started Free
Australia 2020267264 ⤷  Get Started Free
Brazil 112015027282 ⤷  Get Started Free
Canada 2909335 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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