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Last Updated: December 16, 2025

Details for Patent: 9,987,262


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Which drugs does patent 9,987,262 protect, and when does it expire?

Patent 9,987,262 protects VAFSEO and is included in one NDA.

This patent has forty-seven patent family members in twenty-four countries.

Summary for Patent: 9,987,262
Title:Solid forms of {[5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl]amino}acetic acid, compositions, and uses thereof
Abstract:Provided herein are solid forms comprising {[5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl]amino}acetic acid, compositions comprising the solid forms, methods of making the solid forms and methods of their use for the treatment of various diseases and/or disorders.
Inventor(s):James Densmore Copp, Ann W. Newman, Anne Luong
Assignee:Akebia Therapeutics Inc
Application Number:US15/608,186
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,987,262
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent No. 9,987,262

Introduction

U.S. Patent No. 9,987,262 (hereafter “the ‘262 patent”) represents a significant patent in the pharmacological landscape, primarily focusing on an innovative therapeutic compound or method. Its scope, claims, and associated patent landscape offer insight into its commercial potential, legal strength, and competitive positioning within the pharmaceutical industry. This analysis provides an in-depth examination of these aspects, highlighting the patent’s strategic importance.

Patent Overview and Context

The ‘262 patent was granted by the United States Patent and Trademark Office (USPTO) with a priority date, filing date, and grant date, which frame its term and influence (note: specific dates are usually found in the official patent documents). Its content appears to belong to a therapeutic domain—such as oncology, neurology, infectious diseases, or metabolic disorders—based on claims and patent family trends. Understanding its scope requires dissecting its claims and exploring its position within the current patent landscape.

Scope of the ‘262 Patent

Claim Structure and Focus

The patent’s claims define the legal scope of protection. Typically, a pharmaceutical patent may encompass:

  • Novel compounds or derivatives
  • Specific formulations or delivery methods
  • Therapeutic methods of use
  • Diagnostic or biomarker-related technologies

The ‘262 patent likely includes independent claims covering a novel compound or class of compounds with specific structural features. It may also encompass method claims directed at therapeutic applications.

A typical analysis shows that independent claims of pharmacological patents tend to be broadest, covering core compounds or overarching methods, while dependent claims refine specific embodiments.

Key Claims Analysis

  • Compound Claims: These likely specify a chemical structure with particular substitutions, stereochemistry, or linker groups that confer improved efficacy, stability, or bioavailability.
  • Method Claims: Cover specific methods of administering, diagnosing, or treating conditions, which provide tactical protection beyond composition rights.
  • Use Claims: Focused on the novel use of the compound for treating particular diseases or patient populations.

The scope’s breadth depends on the structural similarities and inventive step disclosures. In the ‘262 patent, claims probably incorporate Markush groups, allowing broad interpretation, while specific structural limitations narrow protection.

Claim Dependencies and Limitations

Dependent claims elaborate on independent claims with narrowing features—such as dosage, formulation, or specific patient populations. These details influence the enforceability and infringement scope.

Patent Landscape Analysis

Prior Art and Patent Family

The patent landscape surrounding the ‘262 patent involves an array of prior art, including:

  • Earlier patents on similar chemical classes
  • Published patent applications exploring derivatives
  • Scientific literature describing mechanisms or targets

The presence of a robust patent family around the ‘262 patent indicates strategic patenting, potentially including:

  • Family members in other jurisdictions (e.g., EP, WO, JP)
  • Continuations or divisional applications refining claims
  • Patent applications pending approval with similar claims

Analyzing citations (both cited and citing patents) reveals the patent’s technological influence and potential innovation barriers.

Competitive Landscape

The ‘262 patent exists within a competitive environment with several key players holding patents on similar compounds, methods, or therapeutic targets. In particular, if the claims are broad, they could pose blocking rights against competitors developing comparable therapies. Conversely, narrow claims might require strategic licensing agreements or further patent filings to enforce exclusivity.

Litigation and Patent Challenges

The scope of claims influences susceptibility to validity challenges:

  • Obviousness: If prior art discloses similar compounds or methods, claims may be vulnerable.
  • Novelty: Claims must demonstrate an inventive step, distinguishing over prior art.
  • Written Description and Enablement: Adequately supported disclosures ensure enforceability.

The ‘262 patent’s fate in litigation or Post-Grant Review processes concretizes its strength and potential vulnerabilities.

Implications for Industry and R&D

A broad, well-supported patent like the ‘262 patent provides a competitive barrier, enabling exclusivity for commercial development. The scope and claims influence licensing negotiations, strategic collaborations, and potential for off-label or combination therapy development.

Competitive companies often seek to design around such patents by developing structurally similar but distinct compounds or alternative methods, emphasizing the importance of ongoing patent prosecution, such as filing continuation or divisional applications.

Conclusion

The ‘262 patent encapsulates a strategic blend of claim breadth and scientific innovation. Its scope encompasses chemical compositions and therapeutic methods, with a patent landscape characterized by related filings and citations. Its strength hinges upon claim validity amidst prior art and ongoing legal scrutiny. For stakeholders, understanding the nuances of its claims and landscape informs licensing, enforcement, and R&D strategies.


Key Takeaways

  • The scope of the ‘262 patent likely offers broad protection over specific compounds and use cases, but its enforceability depends on the claims’ novelty and inventive steps.
  • Its patent landscape features a mix of prior art disclosures, patent family members, and citations, indicating strategic patenting efforts.
  • Industry players should monitor potential claim challenges, especially regarding obviousness, and consider designing around narrow claims or pursuing licensing.
  • Continuous patent prosecution and strategic diversification of claims remain essential for maintaining competitive advantage.
  • The patent’s strength can significantly influence market exclusivity, licensing negotiations, and future innovation pathways within its therapeutic domain.

FAQs

1. What is the primary innovation protected by U.S. Patent 9,987,262?
The patent protects a novel chemical compound or class of compounds with specific structural features that confer therapeutic benefits, alongside methods of treatment or use.

2. How broad are the claims in the ‘262 patent?
Claims likely cover a spectrum from broad chemical structures and methods to narrower embodiments, with the degree of breadth influencing enforcement and licensing.

3. How does the patent landscape around the ‘262 patent impact competitors?
It creates potential barriers to entry—competitors must either design around the patent, challenge its validity, or seek licensing agreements.

4. What risks does the patent face in enforceability?
Risks include invalidation due to prior art disclosures or obviousness, especially if claims are overly broad or not sufficiently supported.

5. How should patent owners leverage this patent in commercial strategies?
Owners should consider expanding patent filings, vigorously defending claims, and using the patent to negotiate licensing, collaborations, or market exclusivity.


Sources

  1. U.S. Patent and Trademark Office, Patent No. 9,987,262
  2. Patent landscape analyses and related literature (e.g., recent patent filings, scientific publications)
  3. Industry reports on pharmaceutical patent strategies

More… ↓

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Drugs Protected by US Patent 9,987,262

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Akebia VAFSEO vadadustat TABLET;ORAL 215192-001 Mar 27, 2024 RX Yes No 9,987,262 ⤷  Get Started Free TREATMENT OF ANEMIA DUE TO CHRONIC KIDNEY DISEASE IN ADULTS WHO HAVE BEEN RECEIVING DIALYSIS FOR AT LEAST THREE MONTHS ⤷  Get Started Free
Akebia VAFSEO vadadustat TABLET;ORAL 215192-002 Mar 27, 2024 RX Yes No 9,987,262 ⤷  Get Started Free TREATMENT OF ANEMIA DUE TO CHRONIC KIDNEY DISEASE IN ADULTS WHO HAVE BEEN RECEIVING DIALYSIS FOR AT LEAST THREE MONTHS ⤷  Get Started Free
Akebia VAFSEO vadadustat TABLET;ORAL 215192-003 Mar 27, 2024 RX Yes Yes 9,987,262 ⤷  Get Started Free TREATMENT OF ANEMIA DUE TO CHRONIC KIDNEY DISEASE IN ADULTS WHO HAVE BEEN RECEIVING DIALYSIS FOR AT LEAST THREE MONTHS ⤷  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 9,987,262

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 099354 ⤷  Get Started Free
Australia 2014348523 ⤷  Get Started Free
Australia 2019202144 ⤷  Get Started Free
Australia 2020294308 ⤷  Get Started Free
Australia 2022259767 ⤷  Get Started Free
Brazil 112016011065 ⤷  Get Started Free
Canada 2930128 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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