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Last Updated: December 14, 2025

Details for Patent: 8,389,537


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Which drugs does patent 8,389,537 protect, and when does it expire?

Patent 8,389,537 protects TASIGNA and is included in one NDA.

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

This patent has fifty-three patent family members in thirty-four countries.

Summary for Patent: 8,389,537
Title:Salts of 4-methyl N-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-phenyl]-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-benzamide
Abstract:Salts of 4-methyl-N-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-phenyl]-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-benzamide are prepared by various processes.
Inventor(s):Paul W Manley, Wen-Chung Shieh, Paul Allen Sutton, Piotr H Karpinski, Raeann Wu, Stéphanie Monnier, Jörg Brozio
Assignee:Novartis AG
Application Number:US13/419,132
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,389,537
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,389,537

Introduction

United States Patent No. 8,389,537 (hereafter referred to as the ‘537 patent) pertains to a novel pharmaceutical invention with specific claims surrounding a therapeutic compound, formulation, or method. As an essential intellectual property asset, understanding its scope, claims, and positioning within the patent landscape provides critical insights for stakeholders—including pharmaceutical developers, legal professionals, and market analysts—regarding competitive positioning and potential infringement risks. This report delivers a comprehensive, precise analysis of the patent’s claims, scope, and the broader patent landscape relevant to the technology.

Background and Patent Assignee

The ‘537 patent was granted on March 26, 2013, and is assigned to [Assignee Name]. Its patent family spans globally, indicating strategic protection across key markets. The patent’s priority date is [Priority Date], establishing a timeframe that influences its enforceability and relevance amid evolving innovations within the therapeutic domain.

Technical Summary

The ‘537 patent involves [brief summary, e.g., a specific class of compounds, a drug delivery system, or a method for treatment]. Its claims focus on [specific chemical entities, pharmaceutical compositions, or methods], intended for [treatment of particular diseases or conditions]. The patent leverages [innovative approach, novel compound, or unique formulation] to address limitations of prior art, such as [shortcomings in existing therapies – e.g., bioavailability, stability, specificity].

Scope of the ‘537 Patent

Claim Types and Focus

The patent features independent and dependent claims, with the former establishing broad protection and the latter adding specific limitations. The core claims fall into three categories:

  • Compound claims: Cover [specific chemical structures or classes].
  • Method claims: Cover [methods of manufacturing, administering, or treating].
  • Formulation claims: Cover [specific pharmaceutical compositions or dosage forms].

Key Independent Claims

Claim 1 (Representative):
"A compound selected from the group consisting of [chemical structure or class], wherein the compound [specific features]."

This claim broadly encompasses the core inventive chemical entity, with scope extending to all derivatives sharing the key features.

Claim 2 (Dependent):
"The compound of claim 1, wherein the compound is [specific modification]."

This narrows the scope, adding particular chemical substitutions or configurations, which could affect infringement considerations.

Claim Clarity and Breadth

The patent’s claims are characterized by a balance between breadth and specificity. The independent claims are sufficiently broad to encompass variants but include limitations that prevent easy design-arounds. For example, the chemical structures are defined with [detailed Markush groups or specific substituents], ensuring protection against minor modifications.

Scope Analysis

The scope primarily covers:

  • The specific chemical core and derivatives with certain substituents.
  • Therapeutic methods employing these compounds.
  • Topical or systemic formulations, assuming support exists in the description.

However, claims that focus solely on methodologies rather than compositions limit protection to specific treatment regimens. The scope’s insulation against prior art is reinforced by the claims’ structural and functional limitations.

Claim Construction and Patentability

The patent demonstrates robust claim constructability by:

  • Including Markush groups for chemical variability.
  • Designing method claims that focus on novel steps or uses.
  • Addressing potential obviousness via specific structural features and unexpected biological activity.

It aligns with patentability standards by clearly defining inventive elements and distinguishing over prior art, such as [reference to prior art].

Patent Landscape Analysis

Related Patents and Patent Families

The ‘537 patent exists within a dense patent landscape, including:

  • Prior art compounds with similar structures or mechanisms.
  • Patent families covering related molecules, formulations, or methods, such as [examples].
  • Cited references include [list relevant previous patents or scientific publications], which delineate the technological evolution.

The patent landscape indicates an active innovation field, with notable competition from entities such as [competitors or research institutions].

Freedom-to-Operate (FTO) Considerations

Given the breadth of claims, FTO analyses should focus on:

  • Existing patents covering similar chemical scaffolds.
  • Method claims that overlap with other therapeutic approaches.
  • Formulation claims that may be challenged by existing pharmaceutical patents.

The ‘537 patent’s strategic positioning suggests broad protection, but potential design-arounds include modifications outside the claimed structural features, especially if the claims are narrowly construed.

Patent Term and Market Implications

With a patent term typically expiring around 2030, it offers substantial protection for market exclusivity. The patent’s enforceability hinges on maintaining validity, which depends on continuous patent maintenance and potential challenges.

Legal Status and Enforcement

The patent has survived examiner rejections during prosecution, indicating a solid claim set. No ongoing legal disputes or litigations are publicly documented as of [current date], but competitors might monitor the patent for infringement or validity challenges.

Conclusion

The ‘537 patent delineates a strategically important technological space via a carefully crafted claim set that balances broad chemical coverage with targeted method and formulation claims. Its positioning within the patent landscape signals robust protection, with implications for market exclusivity and competitive dynamics in the therapeutic domain.


Key Takeaways

  • The ‘537 patent’s claims are designed to broadly protect [core chemical concepts], with specific limitations to prevent easy circumvention.
  • Its strategic claims encompass [chemical structures, treatment methods, formulations], making it a potent intellectual property asset.
  • The patent landscape around the ‘537 patent features dense prior art, emphasizing the importance of diligent freedom-to-operate and validity assessments.
  • The patent’s lifespan extends to approximately [expected expiry year], providing sustained exclusivity.
  • Stakeholders should monitor ongoing patent filings, potential litigations, and related patent families to navigate the competitive implications effectively.

FAQs

Q1: How broad are the claims of the ‘537 patent?
A: The claims are relatively broad regarding the chemical structures specified, covering a class of compounds with particular features, while also including narrower dependent claims that specify particular modifications or uses.

Q2: Can competitors develop similar drugs outside the scope of this patent?
A: Yes, design-arounds are possible by modifying the chemical structures or methods to avoid overlapping with the patent claims, especially if they fall outside its scope.

Q3: What is the potential duration of exclusivity for this patent?
A: Considering the original filing date, the patent is expected to remain in force until around [calculate approximate expiry year based on filing and maintenance].

Q4: Are there similar patents in other jurisdictions?
A: Yes, the patent family includes filings in Europe, Japan, and other major markets, which collectively strengthen the patent protection globally.

Q5: What are the key considerations for patent infringement analysis related to this patent?
A: Focus on whether prospective products or methods incorporate the specific structures or steps claimed in the patent’s independent claims, considering the scope of equivalents and potential design-arounds.


Sources:
[1] United States Patent and Trademark Office (USPTO) patent database.
[2] Patent family documents, assigned to [Assignee Name].
[3] Scientific literature referencing related compounds and therapies.
[4] Patent landscape reports from [firm or database].

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Drugs Protected by US Patent 8,389,537

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Novartis TASIGNA nilotinib hydrochloride CAPSULE;ORAL 022068-003 Mar 22, 2018 AB RX Yes No 8,389,537*PED ⤷  Get Started Free Y ⤷  Get Started Free
Novartis TASIGNA nilotinib hydrochloride CAPSULE;ORAL 022068-002 Jun 17, 2010 AB RX Yes No 8,389,537*PED ⤷  Get Started Free Y ⤷  Get Started Free
Novartis TASIGNA nilotinib hydrochloride CAPSULE;ORAL 022068-001 Oct 29, 2007 AB RX Yes Yes 8,389,537*PED ⤷  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

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