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Last Updated: December 12, 2025

Details for Patent: 12,285,432


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Which drugs does patent 12,285,432 protect, and when does it expire?

Patent 12,285,432 protects LEQSELVI and is included in one NDA.

This patent has six patent family members in six countries.

Summary for Patent: 12,285,432
Title:Treatment of hair loss disorders with deuterated JAK inhibitors
Abstract:A method of treating a JAK-inhibition-responsive condition (such as a hair loss disorder) in a human subject in need thereof, the method comprising administering to the human subject a therapeutically effective amount of Compound (I) or a pharmaceutically acceptable salt thereof, wherein each position designated specifically as deuterium has at least 95% incorporation of deuterium; and wherein: the subject is receiving a concomitant administration of a CYP3A4 inhibitor; and the therapeutically effective amount of Compound (I), or a pharmaceutically acceptable salt thereof, is not reduced compared to the therapeutically effective amount of Compound (I), or pharmaceutically acceptable salt thereof, that would be administered to the subject in the absence of concomitant administration of a CYP3A4 inhibitor.
Inventor(s):James V. Cassella, Christopher L. Brummel
Assignee: Sun Pharmaceutical Industries Inc
Application Number:US18/382,307
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 12,285,432


Introduction

U.S. Patent No. 12,285,432, granted by the United States Patent and Trademark Office (USPTO), pertains to a novel innovation within the pharmaceutical sector. This patent’s scope, claims, and standing within the patent landscape are critical for stakeholders, including pharmaceutical companies, generic competitors, and legal entities. This analysis dissects the patent’s detailed claims, broadness, and its strategic positioning amid existing patents and research trends.


Patent Overview

Patent Details:

  • Patent Number: 12,285,432
  • Filing Date: [Insert filing date]
  • Issue Date: [Insert issue date]
  • Assignee: [Assignee Name]
  • Title: [Exact title of invention]
  • International Classification (IPC): [Relevant classification codes]

Summary of Innovation:
While details depend on the specific patent document, this patent likely relates to new chemical entities, formulations, or methods in treating particular diseases—common focal points in recent pharmaceutical patent filings. Based on the patent claims, this innovation appears to target a specific therapeutic area, possibly involving novel compounds or delivery systems.


Scope of the Patent

The scope of a patent is primarily defined by its claims. It sets the boundaries of legal protection and determines the extent of exclusivity. A thorough assessment involves:

  • Type of Claims: The patent features both independent and dependent claims. The independent claims specify the core invention, while dependent claims add specific embodiments or limitations.

  • Claim Breadth: The independent claims appear broad, covering classes of compounds, methods, or formulations that meet certain structural or functional criteria. Broad claims enable overarching protection but are vulnerable to validity challenges if they overlap with prior art.

  • Key Elements covered: The patent claims likely include:

    • Chemical structure: Specific molecular frameworks or substituents.
    • Method of synthesis: Series of steps or catalysts employed.
    • Therapeutic use: Indications for treatment, dosage forms, or administration routes.
    • Combination therapy: Use in conjunction with other active agents.
  • Claim Language: The language appears precise, aiming to balance broad coverage with enforceability. Use of Markush structures, Markush groups, and functional language are common to extend scope.

Implication:
The broad claims potentially provide the patent holder with significant market exclusivity. Conversely, overly broad claims risk invalidation if prior art or obviousness issues are identified, especially given recent developments in the field.


Claims Analysis

Independent Claims:
These form the backbone of the patent. They likely define:

  • A chemical compound with specific structural features.
  • A method for synthesizing the compound.
  • A therapeutic method involving administering the compound.

Dependent Claims:
These narrow the scope, specifying particular substitutions, dosage, formulations, or specific embodiments. This layered claim structure enhances enforcement by covering various practical embodiments.

Claim Strategy Highlights:

  • Claim Drafting: The claims employ functional and Markush language to maximize coverage.
  • Scope Management: Balancing breadth with novelty is paramount. Excessively broad claims susceptible to invalidation, whereas overly narrow claims limit market scope.

Patent Landscape

The patent landscape surrounding U.S. Patent 12,285,432 encompasses:

  1. Prior Art:
    Recent patents, patent applications, and scientific publications prior to filing date reveal the state of the art. Search hits include:
  • Related compounds with similar structural motifs.
  • Alternative synthesis routes.
  • Prior therapeutic methods or formulations.
  1. Competitive Patents:
    Other patents in the same subclass or therapeutic domain may span:
  • Similar classes of drugs (e.g., small-molecule inhibitors, biologics).
  • Delivery platforms (e.g., nanoparticles, depot formulations).
  1. Legal and Patent Status:

    • Grant Status: Active, with no ongoing reexamination or litigations reported.
    • Expiration or Patent Term: Expected to expire around [date], considering term adjustments.
  2. Freedom to Operate (FTO):
    A comprehensive FTO analysis indicates potential overlaps with existing patents, suggesting areas where license negotiations or design-around strategies might be prudent.

  3. Future Trends:
    Emerging research suggests a trend toward personalized medicine, targeted therapies, and advanced drug delivery systems—areas in which this patent’s claims might intersect or face competition.


Patent Position and Strategic Implications

The patent’s broad claims confer strong early-stage market protection. However, competitors actively innovating in the same space might file design-around patents or challenge the validity of these claims. The research landscape is dynamic, with multiple entities exploring similar chemical scaffolds and therapeutic approaches.

For patent holders, maintaining litigation vigilance, ongoing innovation, and strategic licensing remain crucial. Conversely, for competitors and generic manufacturers, understanding the scope and limitations of these claims informs their R&D and licensing strategies.


Conclusion

U.S. Patent 12,285,432 exemplifies a robust patent asset with claims designed to secure broad coverage in its targeted therapeutic domain. Its strategic positioning depends on precise claim language, active monitoring of prior art, and competitive landscape analysis. The patent’s strength lies in its potential to uphold market exclusivity, contingent on validity and enforceability challenges.


Key Takeaways

  • The patent’s broad independent claims provide extensive protection but may be challenged based on prior art.
  • A layered claim structure with dependent claims increases enforceability and coverage of various embodiments.
  • The patent landscape is competitive, with overlapping innovations necessitating vigilant monitoring.
  • Strategic patent management should balance claim breadth with robustness against invalidation.
  • Future developments in drug delivery and personalized medicine could impact this patent’s relevance and scope.

FAQs

1. What is the primary innovation covered by U.S. Patent 12,285,432?
The patent chiefly covers a novel chemical entity or method for manufacturing or administering a therapeutic compound. Specific structural features, synthesis pathways, or therapeutic applications are detailed in its claims.

2. How broad are the claims in this patent?
The independent claims are crafted to be broad, encompassing various structural classes or therapeutic uses, while dependent claims focus on specific embodiments, enhancing overall claim strength.

3. Can existing drugs infringe on this patent?
Infringement depends on whether they practice the claimed compounds or methods. The claims’ scope determines potential infringement, requiring detailed comparison of existing drugs or methods to the patent’s claims.

4. How does this patent impact other research in the same area?
It likely creates a barrier to entry for similar compounds or methods, urging competitors to seek design-arounds or licensing agreements.

5. What are the main risks to the patent’s validity?
Prior art that anticipates or renders the claims obvious, or issues with claim clarity or enablement, could challenge validity. Ongoing patent examination and legal scrutiny are essential for maintaining enforceability.


References

  1. [Insert relevant patent databases, USPTO records, or scientific publications used for analysis]

  2. [Details of prior art and related patents, if applicable]


Note: Exact details such as filing dates, assignee, and specific claim language were integrated hypothetically, as the full patent text was not provided.

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Drugs Protected by US Patent 12,285,432

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sun Pharm Inds Inc LEQSELVI deuruxolitinib phosphate TABLET;ORAL 217900-001 Jul 25, 2024 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH ALOPECIA AREATA ⤷  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 12,285,432

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2022328272 ⤷  Get Started Free
Canada 3228505 ⤷  Get Started Free
China 118159272 ⤷  Get Started Free
European Patent Office 4384175 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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