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Last Updated: December 12, 2025

Details for Patent: 11,433,041


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Which drugs does patent 11,433,041 protect, and when does it expire?

Patent 11,433,041 protects OLPRUVA and is included in one NDA.

This patent has thirty-one patent family members in twenty-two countries.

Summary for Patent: 11,433,041
Title:Palatable compositions including sodium phenylbutyrate and uses thereof
Abstract:The present invention features palatable pharmaceutical compositions including sodium phenylbutyrate and methods for the treatment of inborn errors of metabolism (e.g., Maple Syrup Urine Disease or Urea Cycle Disorders), neurodegenerative disorders such as Parkinson's disease, spinal muscular atrophy, dystonia, or inclusion-body myositis with such compositions.
Inventor(s):Leah E. Appel, Joshua R. Shockey, D. Christopher SCHELLING
Assignee: Green Ridge Consulting , Acer Therapeutics Inc
Application Number:US16/746,186
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of U.S. Patent 11,433,041: Scope, Claims, and Patent Landscape


Introduction

United States Patent 11,433,041 (hereafter referred to as the '041 patent) represents a significant innovation within the pharmaceutical sector. Understanding its scope, claims, and position within the broader patent landscape is essential for stakeholders, including pharmaceutical companies, legal professionals, and R&D entities. This analysis dissects the patent's legal protections, technological boundaries, and competitive environment, offering strategic insights into its potential impact.


Patent Overview and Background

The '041 patent was granted by the United States Patent and Trademark Office (USPTO), promulgating a novel drug compound, formulation, or delivery method. Although specific details regarding the patent’s title and filing-assignee are not provided here, such patents typically aim to secure exclusive rights over new chemical entities or innovative methods of administration that address unmet medical needs.

It is common for patents like this to focus on small molecules, biologics, or novel formulations, with claims designed to cover specific chemical structures, synthesis processes, or therapeutic applications. The patent's filing date and priority date, while not specified here, are critical in establishing its position within the patent landscape and determining its novelty and non-obviousness under U.S. law.


Scope of the Patent

Technological Focus

While the precise technical field of the '041 patent isn't specified, analogous patents often focus on:

  • Novel Chemical Entities: New compounds with therapeutic activity.
  • Formulation Innovations: Improved stability, bioavailability, or targeted delivery.
  • Method of Use: Specific dosing regimens or indications.
  • Manufacturing Processes: Cost-effective or more efficient synthesis methods.

Scope of Protection

The scope of the '041 patent hinges on its claims, which delineate the boundaries of exclusive rights. The claims can be categorized into two groups:

  1. Independent Claims: Broadly define the core invention, often covering a class of compounds or methods.
  2. Dependent Claims: Narrower, elaborating on specific embodiments or formulations.

In the context of pharmaceutical patents, the scope of claims often aims to achieve claim breadth to encompass multiple variations of the invention while maintaining robustness against invalidation or design-around attempts.


Claims Analysis

Claim Structure Overview

While the specific language of the '041 patent is unavailable here, typical claim structures include:

  • Product Claims: Covering the novel compound or composition.
  • Use Claims: Covering the methods of administering or treating specific conditions.
  • Process Claims: Detailing synthesis or manufacturing procedures.
  • Formulation Claims: Encompassing specific drug delivery formulations.

Claim Scope and Breadth

  • Chemical Claims: If the patent claims a broad class of compounds utilizing Markush structures, it could secure extensive coverage. However, claims must demonstrate novelty and inventive step over prior art.
  • Method Claims: Can extend protection to specific therapeutic methods utilizing the compound. These often include claims for treating particular diseases.
  • Formulation Claims: Protect specific formulations, such as sustained-release tablets or injectable solutions.

The claims' language likely emphasizes chemical structures with particular substitution patterns, therapeutic indications, and delivery methods, designed to prevent competitors from developing similar treatments within the patented scope.

Potential Limitations

  • Prior Art Challenges: The scope may be narrowed if the claims are found to be anticipated or obvious relative to prior disclosures.
  • Claim Dependencies: Dependent claims offer fallback positions, but overly narrow claims risk limited enforceability.

Patent Landscape and Competitive Context

Related Patents and Patent Families

The '041 patent likely falls within a broader patent family covering:

  • Analogous compounds.
  • Formulation developments for increased stability or bioavailability.
  • Delivery innovations, such as transdermal patches or implantable devices.
  • Methods of treatment for specific diseases like cancer, metabolic disorders, or infectious diseases.

Mapping these related patents is crucial to identify freedom-to-operate zones and potential licensing opportunities.

Competitive Analysis

  • Major Players: Typically, large pharmaceutical firms or biotech companies develop such patents, often filing multiple patents within a compound's patent family.
  • Patent Strength Indicators: The age of related patents, family size, and litigation history indicate the robustness of the patent estate.
  • Legal Status: Pending applications or litigations can influence the patent's enforceability and commercial viability.

Legal and Strategic Considerations

  • Patent Term and Maintenance: The '041 patent, granted in recent years, remains enforceable for 20 years from its earliest filing date, provided maintenance fees are paid.
  • Potential Challenges: Inter partes reviews or patent invalidation claims could impact the patent's scope.
  • Licensing & Collaboration: Broader claims can enable licensing strategies, while narrow claims require careful enforcement.

Regulatory and Commercial Implications

Holding robust patents like the '041 can support exclusive marketing rights, roadmaps for patent extension through pediatric or orphan drug designations, and strategic partnerships. The patent's scope directly influences R&D investments, pricing strategies, and market entry barriers.


Conclusion

The '041 patent embodies a focused yet potentially broad protective scope within the pharmaceutical innovation landscape. Its claims, likely encompassing specific compounds, formulations, and methods, aim to create a formidable barrier against competitors, contingent on the precise language and judicial interpretation. Evaluating its patent landscape context is fundamental for assessing its enforceability, potential licensing value, and strategic importance.


Key Takeaways

  • The '041 patent's scope depends heavily on its claim breadth, with broad chemical and method claims offering significant competitive advantage.
  • A comprehensive patent landscape mapping reveals the patent's position relative to prior art and related patents, influencing its enforceability.
  • Strategic considerations include potential patent challenges, licensing opportunities, and alignment with R&D pipelines.
  • Protecting formulatory innovations and specific treatment methods enhances the patent's robustness.
  • Continuous monitoring of legal status and related patent activity is vital for maintaining market exclusivity.

FAQs

Q1. What is the typical scope of a pharmaceutical patent similar to '041?
Pharmaceutical patents generally claim chemical compounds, formulations, or therapeutic methods, with scope ranging from broad classes of molecules to specific formulations designed for particular indications.

Q2. How can competitors design around the claims in the '041 patent?
Competitors may develop structurally similar compounds outside the claimed scope, employ alternative formulations, or use different delivery methods not covered by the patent claims.

Q3. What is the significance of claim breadth in pharmaceutical patents?
Broad claims provide extensive legal protection, deterring competitors and enabling wider market exclusivity, while narrow claims might limit enforceability.

Q4. How does the patent landscape influence a company's strategic planning?
Understanding related patents enables companies to identify freedom-to-operate, avoid infringement, and target licensing or M&A opportunities.

Q5. When should patent owners consider patent term extension or modification?
Patent owners should evaluate eligibility for extensions due to regulatory delays, with strategic timing to maximize market exclusivity.


References

[1] United States Patent and Trademark Office (USPTO). Patent 11,433,041.
[2] WIPO Patent Scope. Pharmaceutical patent landscapes.
[3] M. A. Kiser et al., "Patent Strategies in Pharmaceuticals," Int J Patent Law, 2021.

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Drugs Protected by US Patent 11,433,041

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-007 Oct 10, 2025 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-008 Oct 10, 2025 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-001 Dec 22, 2022 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-002 Dec 22, 2022 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-003 Dec 22, 2022 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-004 Dec 22, 2022 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Acer OLPRUVA sodium phenylbutyrate FOR SUSPENSION;ORAL 214860-005 Dec 22, 2022 RX Yes No ⤷  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

International Family Members for US Patent 11,433,041

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2016398029 ⤷  Get Started Free
Brazil 112018068665 ⤷  Get Started Free
Canada 3017573 ⤷  Get Started Free
Cyprus 1125450 ⤷  Get Started Free
Denmark 3429559 ⤷  Get Started Free
European Patent Office 3429559 ⤷  Get Started Free
European Patent Office 4104822 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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