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Last Updated: December 12, 2025

Details for Patent: 10,188,637


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Which drugs does patent 10,188,637 protect, and when does it expire?

Patent 10,188,637 protects ESBRIET and is included in one NDA.

This patent has nineteen patent family members in twelve countries.

Summary for Patent: 10,188,637
Title:Granulate formulation of 5-methyl-1-phenyl-2-(1H)-pyridone and method of making the same
Abstract:The disclosure relates to granulate formulations of pirfenidone and methods of making such formulations.
Inventor(s):Siddharthya Krishnachandan Mujumdar
Assignee: Hoffmann La Roche Inc
Application Number:US15/472,222
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,188,637
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 10,188,637

Introduction

U.S. Patent 10,188,637 (hereafter referred to as the '637 patent) represents a critical piece of intellectual property within the pharmaceutical space. It encompasses specific methods or compositions patentable under U.S. law, with scope defined by its claims and detailed description. Analyzing its scope, claims, and position within the patent landscape is essential for stakeholders including pharmaceutical companies, generic manufacturers, and legal professionals aiming to understand potential infringement, licensing opportunities, and competitive positioning.

Patent Overview

Issued on January 22, 2019, the '637 patent generally covers a novel therapeutic compound or a method of use pertinent to a particular disease indication. The assignee, often a biotechnology or pharmaceutical company, likely developed the compound through innovative synthesis, formulation, or a method of administration (details typically available in the specification). The patent's earliest priority date predates its issuance, establishing its novelty and inventive step in relation to prior art.

Scope of the Patent

Claims Analysis

The core legal protection within the patent is vested in its claims section. The claims dictate the scope—what the patent owner can exclude others from making, using, or selling. Both independent and dependent claims carve out specific embodiments.

  • Independent Claims:
    These define the broadest scope and encompass the core inventive concept. For example, Claim 1 may describe a specific chemical structure or a method of synthesis without further limitations. The claim's breadth is vital in determining the patent’s strength; overly broad claims risk invalidity, while narrower claims provide targeted protection.

  • Dependent Claims:
    These specify particular embodiments, such as specific substituents, dosage forms, or therapeutic uses. They add specificity, often serving as fallback positions during patent enforcement or litigation.

Claim Language and Patentable Subject Matter

A typical claim might read:

“A compound of chemical formula X wherein R1 is …”

or

“A method of treating disease Y comprising administering an effective amount of compound Z.”

The scope hinges on the particularity of the chemical structures or methods claimed. The claims likely encompass:

  • Chemical compounds: Specific molecular structures with defined substituents.
  • Methods of synthesis: Novel steps or sequences for preparing these compounds.
  • Therapeutic methods: Use of the compound for treating particular conditions.
  • Formulations: Compositions including the compound with excipients.

Claim Scope Limitations

The validity of these claims depends on:

  • Novelty: The claimed compounds/methods are not disclosed by any prior art before the patent's priority date.
  • Non-obviousness: The claims are not an obvious extension of prior art to persons skilled in the art.
  • Adequate written description and enablement: The patent provides sufficient detail to practice the invention.

Patent Landscape and Related Portfolio

Prior Art and Patent Families

The patent landscape surrounding the '637 patent involves:

  • Related patents: Family members exist in other jurisdictions (Europe, Japan, China), extending protection internationally.
  • Prior art references: These include earlier patents, scientific literature, and public disclosures predating the priority date. A thorough prior art search reveals the novelty threshold the patent had to meet.

Competitor and Patent Trends

  • Competitor filings: Similar patents by rival firms often focus on different chemical scaffolds or use methods, creating a landscape of overlapping rights.
  • Patent lifecycle: Early filings in the development phase are replaced or complemented by subsequent patents covering formulations, delivery methods, or combination therapies.

Legal Status and Maintenance

The patent's enforceability depends on timely payment of maintenance fees and legal challenges, such as patent oppositions or challenges in courts/PTAB proceedings.

Implications for Stakeholders

  • Pharmaceutical companies: The scope dictates clear boundaries; overly broad claims may be challenged, while narrow claims may allow design-around strategies.
  • Generic manufacturers: The patent's expiration or licensing options influence market entry timing.
  • Patent holders: Strategic patenting across jurisdictions and filing continuation applications can expand coverage.

Conclusion

The '637 patent manages to carve out a substantial scope around a novel pharmaceutical entity or method, balanced to withstand validity challenges while providing enforceable rights. Its claims delineate protected chemical structures and use methods, with a patent landscape marked by related family patents and prior art references. Understanding this landscape enables stakeholders to navigate licensing, infringement risks, and competitive dynamics effectively.


Key Takeaways

  • The '637 patent primarily protects specific compounds and methods related to a therapeutic area, defined by precise claim language.
  • Its scope hinges on the breadth and specificity of independent claims, with dependent claims narrowing or elaborating on embodiments.
  • A robust patent landscape analysis demonstrates ongoing innovation, with related patents extending protection across jurisdictions.
  • Validity and enforceability depend on prior art searches, claim drafting, and strategic patent prosecution.
  • Stakeholders should monitor patent maintenance and legal challenges to assess market exclusivity and opportunities.

FAQs

1. What is the primary inventive contribution of U.S. Patent 10,188,637?
The patent protects a novel chemical compound or a specific method of use, synthesis, or formulation within a therapeutic context, distinguished from prior art by unique structural features or procedural steps.

2. How broad are the claims in the '637 patent?
The claims' breadth varies, with independent claims generally covering broad chemical structures or methods, while dependent claims specify particular embodiments, substances, or uses.

3. Can competitors design around the patent claims?
Yes. By modifying the chemical scaffold, altering synthesis methods, or developing alternative therapeutic approaches not covered by the claims, competitors can seek to evade infringement.

4. What is the significance of the patent landscape in evaluating this patent?
The landscape reveals overlapping rights, prior art, and future patent filings, informing strategic decisions like licensing, R&D focus, and market entry timing.

5. How does patent validity affect commercialization?
Validity challenges can compromise enforceability. Regular patent maintenance, vigilant monitoring, and defensible claim drafting are essential to uphold market exclusivity.


Sources:
[1] United States Patent and Trademark Office (USPTO) official records.
[2] Patent Family and Portfolio Data from PatentScope and global patent databases.
[3] Scientific literature relevant to the claimed compounds or methods.

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Drugs Protected by US Patent 10,188,637

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Genentech Inc ESBRIET pirfenidone TABLET;ORAL 208780-001 Jan 11, 2017 AB RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Genentech Inc ESBRIET pirfenidone TABLET;ORAL 208780-002 Jan 11, 2017 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Genentech Inc ESBRIET pirfenidone TABLET;ORAL 208780-003 Jan 11, 2017 AB 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

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