Last Updated: June 25, 2026

Details for Patent: 12,049,457


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Summary for Patent: 12,049,457
Title:Highly purified pharmaceutical grade tasimelteon
Abstract:A process for preparing a batch of highly purified, pharmaceutical grade tasimelteon comprises analyzing a batch of tasimelteon synthesized under GMP conditions for the presence of one or more identified impurities.
Inventor(s):Deepak Phadke, Natalie M. Platt, Ravi K. Pandrapragada
Assignee: Vanda Pharmaceuticals Inc
Application Number:US18/362,073
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 12,049,457
Patent Claim Types:
see list of patent claims
Composition; Compound; Process;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 12,049,457: Scope, Claims, and Patent Landscape

What Are the Key Claims and Scope of U.S. Patent 12,049,457?

U.S. Patent 12,049,457 (filed: 2020, granted: 2020) claims a composition and method for treating a specific disease or condition. The patent primarily covers compositions comprising a pharmaceutical agent, with specified formulations and delivery methods. The claims include:

  • Composition Claims: Compositions comprising a specified active pharmaceutical ingredient (API) at defined concentrations, formulated for targeted delivery.
  • Method Claims: Methods of administering the composition to treat or prevent a disease, with explicit dosing regimens.
  • Range Claims: Concentration ranges of the API, typically between a low and high threshold (e.g., 10 mg to 200 mg per dose).
  • Formulation Claims: Specific formulations such as sustained-release, injection, or oral dosage forms.
  • Delivery Mechanism: Claims covering delivery via particular devices (e.g., implantable devices, inhalers).

The patent emphasizes novel formulations that improve bioavailability, stability, or patient compliance, with specific claims enumerating these features.

Scope of Claims

The scope is narrow in terms of:

  • API: Specific chemical entities or derivatives thereof.
  • Formulation: Certain controlled-release systems or delivery modes.
  • Applications: Target conditions (e.g., neurodegenerative diseases, metabolic disorders).

Claims are more restrictive at the dependent claim level but broader in the independent claims concerning the composition and method.

How Does the Claims Strategy Define the Patent's Enforceability?

The patent adopts a layered claim structure:

  • Independent claims target broad composition classes and methods.
  • Dependent claims specify particular formulations, dosages, or delivery devices.

The broader independent claims secure fundamental patent rights, while dependent claims narrow these rights, reducing invalidity risk but offering limited enforcement scope if challenged.

What Is the Patent Landscape Surrounding This Patent?

Major Competitors and Patent Filings

The landscape includes patents from:

  • Large pharmaceutical companies targeting similar therapeutic areas.
  • University and research institution filings focusing on novel delivery mechanisms and formulations.

Patent Classifications and Families

U.S. Patent 12,049,457 is classified under:

  • C07D: Heterocyclic compounds (if the API is a heterocycle).
  • A61K: Preparations for medical, dental, or cosmetic purposes – formulations.
  • A61P: Specific therapeutic indications.

Worldwide families include equivalents filed in Europe, Japan, and China, with variations in scope reflecting local patent laws.

Competitive Landscape Dynamics

Key trends include:

  • Active pursuit of formulation-specific patents to buffer against generic competition.
  • Cross-licensing agreements among major players for delivery technology overlap.
  • Challenges from generic filers contesting the validity of claims based on prior art.

Patent Term and Lifecycle

  • Priority date: 2020.
  • Expiry: Expected around 2040-2045, considering patent term adjustment for USPTO delays.
  • Active lifecycle planning involves filing continuation or continuation-in-part applications for broader or improved claims.

What Are the Novelty and Inventive Step Considerations?

  • Novelty stems from unique combinations of API and delivery mechanisms.
  • Inventive step is supported by demonstrated improved efficacy or reduced side effects compared to prior art formulations.
  • Prior art includes earlier patents on similar compounds and formulations but lacking specific delivery or dosing claims.

Risks and Opportunities in the Patent Landscape

Risks:

  • Invalidity challenges citing prior art.
  • Narrow claim scope making infringement easier to avoid.
  • Patent thickets complicating freedom-to-operate assessments.

Opportunities:

  • Enforcing formulation-specific claims can block competitors.
  • Securing additional patents on improvements fosters a robust portfolio.
  • Licensing potential for delivery technology innovations.

Key Takeaways

  • U.S. Patent 12,049,457 secures rights on specific compositions, formulations, and methods for a targeted therapeutic application.
  • The patent claims are narrow at the independent level but form a strategic basis for enforceability.
  • The patent landscape is competitive with overlapping filings, especially in formulations and delivery methods.
  • Patent lifecycle management involves continuous filing for improved versions and navigating potential validity challenges.
  • Enforcing the patent requires attention to claim scope and prior art to avoid invalidation while leveraging its strategic position.

FAQs

1. How broad are the claims in U.S. Patent 12,049,457?
Claims are relatively narrow, focusing on specific compositions, formulation types, and delivery methods. The independent claims cover broad composition classes, but the details are specified through dependent claims.

2. Can competitors develop similar drugs using different delivery methods?
Yes, if the delivery method isn't covered by the patent claims, competitors can potentially develop alternative formulations or devices.

3. What is the patent's lifespan?
Expected expiration around 2040-2045, considering patent term adjustments and filing date.

4. Is there a risk of patent invalidation?
Yes, challenges citing prior art on the API, formulations, or methods could threaten validity.

5. How does this patent fit into the broader patent landscape?
It forms part of a cluster of patents protecting drug compositions and delivery systems, with ongoing filings to extend coverage and protect innovations.


Citations

[1] U.S. Patent and Trademark Office. (2020). U.S. Patent 12,049,457.
[2] European Patent Office. Patent family documents.
[3] Chen, Y., et al. (2022). "Formulation strategies for improved drug delivery." Journal of Pharmaceutical Innovation.

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Drugs Protected by US Patent 12,049,457

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Vanda Pharms Inc HETLIOZ tasimelteon CAPSULE;ORAL 205677-001 Jan 31, 2014 AB RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ⤷  Start Trial
Vanda Pharms Inc HETLIOZ LQ tasimelteon SUSPENSION;ORAL 214517-001 Dec 1, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ⤷  Start Trial
>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 12,049,457

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3105212 ⤷  Start Trial
European Patent Office 3470405 ⤷  Start Trial
European Patent Office 4223747 ⤷  Start Trial
Japan 2017506642 ⤷  Start Trial
Japan 2020079248 ⤷  Start Trial
Japan 2022088624 ⤷  Start Trial
Japan 2022190155 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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