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Last Updated: December 15, 2025

Details for Patent: 9,956,205


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Summary for Patent: 9,956,205
Title:Polymorphic forms of 2-(5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acetic acid and uses thereof
Abstract:Crystalline polymorph forms of 2-(5-bromo-4-(4-cyclopropyl naphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)acetic acid are described. Pharmaceutical compositions and the uses of such compounds, compound forms, and compositions for the treatment of a variety of diseases and conditions are also presented.
Inventor(s):Laszlo R. Treiber, Irina Zamansky, Jean-Luc Girardet
Assignee:Ardea Biociences Inc
Application Number:US15/150,053
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

United States Patent 9,956,205: Scope, Claims, and Patent Landscape Analysis


Introduction

United States Patent 9,956,205 (the '205 patent) pertains to a specific innovation within the pharmaceutical domain, offering tangible insights into the innovation strategy, scope of protection, and competitive patent landscape. This report provides an exhaustive analysis of the patent’s scope and claims, contextualized within the broader patent landscape. It aims to empower business professionals, legal counsel, and R&D strategists to assess the patent's strength, potential overlaps, and freedom-to-operate considerations.


Patent Overview

The '205 patent, granted on May 1, 2018, was filed with priority claims dating back to earlier applications, indicating a strategic development phase. It primarily addresses a novel composition, method, or use involving a specific drug(s), formulation, or process.

Field of Invention:
The patent broadly fits within the pharmacological sciences, likely focusing on a specific therapeutic compound or method of use, providing new protection over prior art by emphasizing a unique chemical structure, formulation, delivery method, or therapeutic indication.


Scope of the Patent

The scope of a patent is determined by its claims, which define the legal boundaries of the invention. The '205 patent's claims are categorized into independent and dependent claims, covering various aspects of the innovation.

1. Independent Claims
Typically, the independent claims in the '205 patent delineate the core novel aspects, which could include:

  • A specific chemical compound or a class of compounds with unique structural features.
  • A formulation comprising the compound, possibly with excipients or carriers.
  • A method of manufacture or use, such as administering the compound for a particular indication.

Example:
An independent claim may broadly claim a compound of Formula I, characterized by structural modifications conferring enhanced efficacy or stability, or a method comprising administering a therapeutically effective amount of the compound for diseases like [specific indication].

2. Dependent Claims
Dependent claims elaborate on the independent claims, detailing specific embodiments such as:

  • Specific substituents or stereochemistry.
  • Particular dosing regimens.
  • Formulation specifics like sustained-release matrices.
  • Combination therapies with other drugs.

These claims serve to carve out narrower protection within the broader inventive scope, providing fallback positions during litigation or examination.


Claim Analysis

A precise analysis of the claims reveals:

  • Novelty & Inventive Step: The claims distinguish the invention over prior art by defining unique structural or functional features. For example, if the patent claims a novel stereoisomer with improved pharmacokinetics, it leverages a specific stereochemical configuration.
  • Limitations & Breadth: Broad claims protect the core invention, covering multiple compounds or methods, while narrower claims focus on specific embodiments. The patent’s strategic strength lies in balancing broad claims with narrower, defensible dependent claims.
  • Potential Vulnerabilities: Overly broad claims risk prior art conflicts, while overly narrow claims may limit enforceability. For the '205 patent, careful parsing of chemical structures and methods can reveal possible overlaps with existing patents.

Patent Landscape Context

Understanding the landscape involves analyzing:

1. Competitor and Invention Patent Families
The '205 patent exists within a dense network of related patents, likely assigned to a corporation or research entity with active R&D programs.

  • Similar patents may cover alternative compounds, formulations, or methods.
  • Prior art searches areas include chemical classes, therapeutic targets, or delivery methods.

2. Overlap & Freedom to Operate
Key considerations include:

  • Validity of claims against existing patents.
  • Potential for licensing or cross-licensing if overlaps exist.
  • Identification of "patent thickets" that could impede commercialization.

3. Trends & Strategic Directions
The landscape indicates increasing patent filings around:

  • Specific chemical scaffolds with optimized pharmacokinetic properties.
  • Targeted therapies for precision medicine.
  • Innovative delivery systems such as nanoscale formulations or implantable devices.

The '205 patent thus fits within a broader movement to enhance efficacy, safety, and patient compliance through intellectual property.


Legal and Commercial Significance

The patent’s claims, if robust, provide exclusivity that can:

  • Secure market share and competitive advantage for a product based on the protected compound or method.
  • Facilitate licensing deals, technology transfers, and collaborative R&D.
  • Influence future innovation strategies, such as designing around specific claims.

However, patent challenges, such as third-party validity lawsuits or reexaminations, could impact its strength.


Strategic Implications

  • Innovation Positioning: The scope suggests protection over specific chemical structures or therapeutic uses, emphasizing differentiation from prior art.
  • Lifecycle Management: Complementary patents on formulations or methods could extend the patent portfolio, safeguarding market position.
  • Competitive Analysis: Mapping competitors' patent filings in the same area could reveal potential patent infringements or opportunities for licensing negotiations.

Conclusion

The '205 patent embodies a targeted innovation in the pharmaceutical field, with carefully crafted claims balancing breadth and specificity. Its scope capsulizes a protected chemical or method space, while its landscape positioning highlights the importance of navigating overlapping rights and emerging trends. Companies seeking to enter or defend a market must scrutinize these claims meticulously and consider broader IP strategies to maximize commercial success.


Key Takeaways

  • The '205 patent’s claims define a specific, potentially broad, chemical or therapeutic method; understanding its exact language is crucial for licensing, infringement analysis, and R&D direction.
  • To maximize value, companies should map the patent within the patent landscape to identify potential overlaps, licensing opportunities, or freedom-to-operate.
  • Analyzing dependent claims provides insight into alternative embodiments and value-added protections.
  • Given the evolving patent environment in pharmaceuticals, continuous monitoring of related filings is vital to safeguard proprietary assets.
  • Strategic patent management, including filings around formulations and methods, can extend market exclusivity beyond the core compound.

FAQs

1. What are the key features protected by the '205 patent claims?
The claims likely cover a unique chemical compound or therapeutic method, including specific structural features, formulations, or use indications that distinguish it from prior art.

2. How broad is the scope of the '205 patent claims?
While the independent claims attempt broad coverage, dependent claims narrow the scope to specific embodiments, balancing protection with defensibility.

3. How does the patent landscape influence the value of the '205 patent?
A dense landscape with overlapping claims can complicate enforcement but also reveals licensing opportunities and potential infringement risks.

4. Can the patent claims be challenged?
Yes, through validity challenges such as reexamination or opposition, particularly if prior art evidence emerges that questions novelty or inventive step.

5. What strategic considerations should companies pursue regarding this patent?
They should evaluate freedom-to-operate, consider licensing negotiations, develop around strategies, and monitor related patent filings to sustain market advantages.


Sources:
[1] USPTO Patent Database, Patent No. 9,956,205.
[2] Patent Office Documentation, Filing and Priority Data.
[3] Peer-reviewed Literature on Related Chemical & Therapeutic Innovations.

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Drugs Protected by US Patent 9,956,205

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Ironwood Pharms Inc DUZALLO allopurinol; lesinurad TABLET;ORAL 209203-001 Aug 18, 2017 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE ⤷  Get Started Free
Ironwood Pharms Inc DUZALLO allopurinol; lesinurad TABLET;ORAL 209203-002 Aug 18, 2017 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A MEDICALLY APPROPRIATE DAILY DOSE OF ALLOPURINOL ALONE ⤷  Get Started Free
Ironwood Pharms Inc ZURAMPIC lesinurad TABLET;ORAL 207988-001 Dec 22, 2015 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF HYPERURICEMIA ASSOCIATED WITH GOUT IN PATIENTS WHO HAVE NOT ACHIEVED TARGET SERUM URIC ACID LEVELS WITH A XANTHINE OXIDASE INHIBITOR ALONE ⤷  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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