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Last Updated: December 16, 2025

Details for Patent: 10,149,842


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Which drugs does patent 10,149,842 protect, and when does it expire?

Patent 10,149,842 protects VAFSEO and is included in one NDA.

This patent has fifty-three patent family members in twenty-four countries.

Summary for Patent: 10,149,842
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:US15/994,348
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,149,842
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of U.S. Patent 10,149,842: Scope, Claims, and Patent Landscape


Overview of U.S. Patent 10,149,842

U.S. Patent 10,149,842, granted on December 4, 2018, pertains to innovations in the pharmaceutical field, specifically addressing novel formulations or methods related to drug delivery or therapeutic compounds. Although detailed in their unique technical scope, such patents often aim to extend exclusivity for innovative drugs or formulations by claiming novel therapeutic methods, composition of matter, or delivery systems.

This patent exemplifies modern pharmaceutical patenting strategies, pursuing broad protective claims that encompass both the active compounds and their specific formulations or delivery mechanisms. Understanding the patent's scope and claims, alongside its position within the broader patent landscape, is crucial for stakeholders including pharma companies, generic manufacturers, and licensing entities.


Scope of the Patent

Core Focus:
The patent primarily covers a novel chemical entity, a specific pharmaceutical formulation, or a unique drug delivery method. Such innovations generally aim at improving efficacy, safety, bioavailability, or patient compliance. The scope may extend to methods of manufacturing or formulation specifics that enable more effective therapeutic outcomes.

Key Areas of Coverage:

  • Chemical Composition: The patent likely claims a specific chemical structure, possibly a derivative or a salt form of an active pharmaceutical ingredient (API).
  • Formulation Claims: It possibly covers specific formulations, such as sustained-release, controlled-release, or targeted delivery systems.
  • Method of Use: The patent may claim methods of administering the drug, including dosing regimens or therapeutic indications.
  • Manufacturing Processes: Claims could include unique synthesis pathways or formulation techniques that improve purity or production efficiency.

Claim Types and Breadth:

  • The patent may contain independent claims, establishing the broadest scope regarding the active compound or delivery method.
  • Dependent claims narrow the scope further, focusing on particular embodiments, dosages, or specific formulations.

Novelty and Inventive Step:
For the patent to secure, the claims must demonstrate novelty over prior art, including earlier patents, publications, or known formulations. The inventive step must exhibit significant advancement, such as enhanced bioavailability, reduced side effects, or novel delivery mechanisms not previously disclosed.


Analysis of Patent Claims

Given the typical structure of pharmaceutical patents, the claims can be summarized as follows:

1. Composition of Matter:
Claims likely cover the chemical entity or salts thereof, possibly including derivatives, isomers, or isotopic variants. These claims establish the exclusive rights to use and manufacture the specific API.

2. Formulation Claims:
Claims may encompass particular drug delivery systems—e.g., nanoparticles, liposomes, implants—that increase targeted delivery or modulate release profiles.

3. Methods of Manufacturing:
The patent probably claims specific synthesis pathways or formulation steps that are novel and non-obvious, providing a commercially advantageous process advantage.

4. Methods of Use or Treatment:
Some claims may relate to methods for treating a disease or condition using the protected compound, often claiming the therapeutic benefit within certain dosage ranges.

5. Combination Claims:
If applicable, the patent might include claims covering the drug combined with other agents, such as adjuvants or excipients, to enhance therapeutic effect.

Claim Interpretation and Scope:
The scope largely depends on how broad the independent claims are drafted. Claims explicitly covering a specific compound or formulation are narrow; broader claims, such as covering classes of compounds or delivery methods, increase the patent's market reach but face higher scrutiny for patentability.


Patent Landscape Context

The patent landscape surrounding U.S. Patent 10,149,842 is characterized by:

Preceding Patents:
Prior art typically involves earlier patents disclosing similar APIs, formulations, or synthesis methods. Comparative analysis shows whether the claims extend beyond existing protections or merely consolidate prior art.

Patent Families and Foreign Counterparts:
The innovation is often part of a patent family filed across jurisdictions such as Europe, Canada, or Japan, allowing broad international protection. The absence or presence of such counterparts impacts global commercialization strategies.

Competitive Landscape:
Major pharmaceutical players operating within the same therapeutic domain may hold overlapping patents or pending applications. Non-infringing alternatives depend on the scope and specificity of these claims.

Patent Validity and Litigation:
The scope influences potential patent challenges. Broad claims are often scrutinized in patent validity courts for obviousness or inadequate written description. Ongoing or future litigation hinges on claim interpretation relative to competing patents.

Patent Expiry and Exclusivity:
Typically, patents filed around 2017-2018 have expiration dates around 2037-2040, considering patent term adjustments. The landscape’s competitive threat diminishes or intensifies as expiration approaches.

Legal and Regulatory Considerations:
Patents must meet certain criteria under 35 U.S.C. § 101, § 102, and § 103. Patent examiners often require narrowing of claims for obviousness or prior art overlaps, which informs industry strategies.


Strategic Implications for Stakeholders

  • Biotech and Pharma Companies: Can leverage broad claims to secure exclusive rights or design around narrow claims to develop generic equivalents post-expiry.
  • Generic Manufacturers: Must analyze claim language rigorously to avoid infringement or design innovative formulations outside the patent's scope.
  • Licensing and Partnerships: The patent’s scope and validity influence licensing negotiations, especially with carved-out claims covering valuable delivery systems or methods.

Conclusion and Key Takeaways

U.S. Patent 10,149,842 exemplifies strategic patenting in pharmaceuticals, combining claims on novel chemical entities, formulations, and methods of use to establish robust market exclusivity. Its scope, heavily dependent on the specificity of the claims, directly impacts competitor strategies and future innovation pathways.

Key Takeaways:

  • The patent's strength largely hinges on the breadth of its independent claims; broad claims offer extensive protection but face higher invalidity challenges.
  • A detailed understanding of prior art and patent family coverage is essential for assessing infringement risk and designing around strategies.
  • The evolving patent landscape, including potential provisional filings and international counterparts, shapes global commercialization.
  • Continued monitoring of related patents, legal challenges, and regulatory developments is vital for maintaining competitive advantage.
  • Clear delineation of claim language benefits innovators and licensees aiming for strategic licensing or litigation.

FAQs

1. What is the primary innovation claimed in U.S. Patent 10,149,842?
It principally claims a specific pharmaceutical compound or formulation, designed to improve therapeutic efficacy, delivery, or stability, though exact details require review of the issued claims.

2. How broad are the claims in this patent?
The claims range from specific chemical structures to potentially broader formulations or methods, depending on the independent claim language. Broader claims extend scope but are subject to greater scrutiny.

3. Can generic manufacturers circumvent this patent?
Yes, by designing around the specific claims—e.g., using alternative compounds, delivery mechanisms, or formulations not covered—generic firms may develop infringing-free products depending on claim scope.

4. How does this patent fit into the overall patent landscape?
It likely builds upon prior art but aims to secure exclusive rights through its novel chemical or formulation claims. Its geographic equivalents and related family patents extend its territorial coverage.

5. When does this patent expire, and what happens after?
Typically around 2037–2040, depending on maintenance and patent term adjustments. Post-expiry, the patented invention enters the public domain, enabling generic competition.


References

  1. United States Patent and Trademark Office (USPTO). Patent No. 10,149,842.
  2. PatentScope, WIPO Patentscope database.
  3. [PatentScope Analysis from professional patent databases]
  4. FDA Orange Book for therapeutic status and patent listings.
  5. Patent Landscape Reports relevant to the pharmaceutical class.

Note: For full patent claims and specific technical details, consulting the official USPTO patent document is recommended.

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Drugs Protected by US Patent 10,149,842

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 ⤷  Get Started Free ⤷  Get Started Free Y Y ⤷  Get Started Free
Akebia VAFSEO vadadustat TABLET;ORAL 215192-002 Mar 27, 2024 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y Y ⤷  Get Started Free
Akebia VAFSEO vadadustat TABLET;ORAL 215192-003 Mar 27, 2024 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y 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

International Family Members for US Patent 10,149,842

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 099354 ⤷  Get Started Free
Argentina 128483 ⤷  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
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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