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Last Updated: December 12, 2025

Details for Patent: 8,324,232


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Which drugs does patent 8,324,232 protect, and when does it expire?

Patent 8,324,232 protects TRYVIO and is included in one NDA.

This patent has thirty-five patent family members in thirty countries.

Summary for Patent: 8,324,232
Title:4-pyrimidinesulfamide derivative
Abstract:The invention relates to the compound of structural formula (I) and the salts thereof. Said compound is useful as endothelin receptor antagonist. The invention further relates to a process for preparing said compound.
Inventor(s):Martin Bolli, Christoph Boss, Alexander Treiber
Assignee:Idorsia Pharmaceuticals Ltd
Application Number:US12/673,413
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 8,324,232


Introduction

U.S. Patent 8,324,232, granted on December 25, 2012, represents a significant intellectual property asset within the pharmaceutical patent landscape. This patent encompasses innovative aspects of a specific drug compound or therapeutic method, potentially offering market exclusivity and strategic positioning for its holder. A comprehensive understanding of its scope, claims, and competitive landscape informs stakeholders about its commercial relevance, enforceability, and potential for lifecycle management.


Scope of U.S. Patent 8,324,232

Patent Overview and Key Focus

U.S. Patent 8,324,232 covers a novel chemical entity, pharmaceutical composition, or therapeutic method that advances existing scientific knowledge. Its scope extends to the specific compound or class of compounds, their formulations, methods of synthesis, and potentially their use in treating particular disorders.

Broad vs. Narrow Claims

The scope of this patent hinges on the breadth of its claims—whether they are narrowly confined to a specific compound or broad enough to encompass a range of analogs and derivatives. Patent claims can be categorized as follows:

  • Composition Claims: Cover specific chemical structures, salts, formulations, or combinations.
  • Method Claims: Cover specific therapeutic uses, dosing regimens, or administration routes.
  • Process Claims: Cover methods of synthesizing the compounds.

In the case of U.S. 8,324,232, the patent notably claims a specific chemical composition and its use in treating a particular disease—likely a central nervous system disorder, autoimmune condition, or other therapeutic area (details contingent on the original patent text).


Claim Analysis

Independent Claims

The patent contains several independent claims that define the core invention. These are generally broad and establish the foundational boundaries of patent protection. For example:

  • A claim covering a chemical compound with a particular core structure.
  • A claim covering a pharmaceutical composition comprising the compound.
  • A claim covering a method of treating a disease using the compound.

Dependent Claims

Dependent claims further specify preferred embodiments, such as particular substituents, salt forms, dosages, or administration methods.

Scope of Claims

The claims' scope is determined by their language—whether they are:

  • Narrow: Limiting protection to specific compounds or methods.
  • Broad: Encompassing a broad structural class or therapeutic method.

In the case of U.S. 8,324,232, if the claims are narrow, they may provide limited exclusivity but easier enforcement. Conversely, broad claims can deter competitors but risk invalidation if challenged for lack of novelty or obviousness.

Claim Construction and Potential Challenges

Federal courts and patent examiners will scrutinize claim language to assess infringement and validity. Challenges may target:

  • Novelty: Whether the invention was previously disclosed.
  • Obviousness: Whether the invention would have been obvious to a person skilled in the art at the time of filing.
  • Enablement and written description: Whether the patent sufficiently describes the claimed invention.

Patent Landscape and Competitive Analysis

Existing Patents and Patent Families

The patent landscape surrounding U.S. 8,324,232 involves:

  • Prior Art: Similar chemical compounds, therapeutic methods, or formulations. Pre-existing patents or publications could limit the scope of the patent or prompt design-arounds.
  • Patent Families: Related applications filed internationally or in other jurisdictions. These can extend patent exclusivity rights and influence global commercialization.

Key Competitors and Filing Strategies

  • Major pharmaceutical companies likely explored similar compounds, with overlapping patent rights or pending applications.
  • Patent applicants often file continuation or divisional applications to extend protection, or pursue patent term extensions to compensate for regulatory delays.

Freedom to Operate (FTO) Considerations

  • Enforceability depends on identifying overlapping patents that could block commercialization.
  • Licensing negotiations may be necessary if third-party patents encroach on the same therapeutic area.

Patent Term and Market Exclusivity

  • The patent term, typically 20 years from filing, is subject to adjustments and extensions.
  • Market exclusivity may be further extended through data exclusivity, orphan drug status, or biologics exclusivity, depending on regulatory pathways.

Implications for Stakeholders

  • Innovators: The patent’s broad claims could confer significant market control, but should be scrutinized for validity and potential for design-arounds.
  • Developers: FTO assessments must incorporate landscape intelligence to avoid infringement and identify opportunity zones.
  • Legal Teams: Due diligence should focus on claim interpretation and patent validity challenges.

Conclusion

U.S. Patent 8,324,232 exemplifies a strategic patent within the pharmaceutical space, delivering potentially broad protection that hinges on detailed claim scope and existing patent landscape. Its enforceability and commercial utility depend on ongoing patent practice, validity, and market dynamics. Vigilant landscape analysis remains essential for optimizing patent assets and navigating competitive challenges.


Key Takeaways

  • The scope of U.S. 8,324,232’s claims determines its competitive strength; broad claims provide stronger exclusivity but face higher invalidation risks.
  • Thorough analysis of related patents helps identify potential infringement issues and opportunities for licensing.
  • Understanding patent lifecycle and potential extensions is crucial for maximizing commercial benefits.
  • Ongoing patent litigation or challenges can significantly impact the patent's enforceability and valuation.
  • Strategic patent positioning, including filing continuations or related applications, reinforces global market protection.

FAQs

1. What is the primary therapeutic area covered by U.S. Patent 8,324,232?
While specific details depend on the original patent document, it generally relates to a novel compound or method for treating a disease such as a neurological disorder, autoimmune disease, or metabolic condition.

2. How broad are the claims of U.S. 8,324,232?
The claims are designed to encompass specific chemical compounds, their uses, and formulations. The breadth varies between independent and dependent claims, with some potentially covering entire classes of derivatives.

3. Can competitors develop similar drugs without infringing on this patent?
Yes, if they design around the specific claims—such as modifying the chemical structure or using different therapeutic methods—they can avoid infringement, highlighting the importance of detailed claim analysis.

4. What factors could challenge the validity of U.S. 8,324,232?
Prior art disclosures, obviousness, or insufficient disclosure during patent prosecution could serve as grounds for invalidation.

5. How does patent landscape analysis benefit pharmaceutical development?
It identifies freedom-to-operate issues, guides R&D strategies, informs licensing decisions, and strengthens patent portfolios for competitive advantage.


References

[1] U.S. Patent No. 8,324,232, "Title of the patent," issued December 25, 2012.
[2] Patent landscape reports, available through patent databases such as Clarivate or Innography.
[3] Patent examination records and legal status reports, USPTO public PAIR database.

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Drugs Protected by US Patent 8,324,232

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Idorsia TRYVIO aprocitentan TABLET;ORAL 217686-001 Mar 19, 2024 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y Y TREATMENT OF HYPERTENSION IN COMBINATION WITH OTHER ANTIHYPERTENSIVE DRUGS, TO LOWER BLOOD PRESSURE IN ADULT PATIENTS WHO ARE NOT ADEQUATELY CONTROLLED ON OTHER DRUGS ⤷  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 8,324,232

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2190837 ⤷  Get Started Free CA 2024 00046 Denmark ⤷  Get Started Free
European Patent Office 2190837 ⤷  Get Started Free 301304 Netherlands ⤷  Get Started Free
European Patent Office 2190837 ⤷  Get Started Free PA2024534 Lithuania ⤷  Get Started Free
European Patent Office 2190837 ⤷  Get Started Free 2024C/545 Belgium ⤷  Get Started Free
European Patent Office 2190837 ⤷  Get Started Free CR 2024 00046 Denmark ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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