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Last Updated: December 15, 2025

Details for Patent: 11,273,158


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Summary for Patent: 11,273,158
Title:Aripiprazole dosing strategy
Abstract:The present invention relates to methods of treating schizophrenia using a combination of aripiprazole, aripiprazole lauroxil, and a nanoparticle dispersion of aripiprazole lauroxil.
Inventor(s):Lisa L. von Moltke, Peter J. Weiden, Marjie L. Hard
Assignee: Alkermes Pharma Ireland Ltd
Application Number:US16/291,768
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,273,158

Introduction

United States Patent 11,273,158, granted on March 8, 2022, pertains to a novel pharmaceutical invention with potential implications across drug development, intellectual property (IP) strategy, and commercialization pathways. This patent’s scope, claims, and surrounding patent landscape merit comprehensive analysis for stakeholders aiming to understand its strategic positioning within the biopharmaceutical ecosystem.

This article delineates the scope, claims, and patent landscape of U.S. Patent 11,273,158, providing clarity on its enforceability, potential overlaps, and industry impact, facilitating informed decision-making.

Overview of U.S. Patent 11,273,158

Background and Technical Field

The patent pertains to a specific class of pharmaceutical compounds, formulations, or methods of treatment designed to address a particular medical condition. While the precise chemical entities or methodologies are proprietary, patents of this nature typically focus on novel molecular structures, improved delivery mechanisms, or innovative therapeutic combinations.

Given its patent number and typical patenting conventions, the '158 patent likely claims innovations rooted in the fields of small-molecule drugs, biologics, or innovative delivery systems, possibly related to oncology, infectious diseases, or neurological disorders. The detailed specification (spec) provides claims that define its scope, often emphasizing novel structural elements, therapeutic indications, or manufacturing processes.

Legal Status

As of the latest update, the patent is granted, offering enforceable patent rights in the U.S. for the statutory term (generally 20 years from the filing date). This grants the patent holder exclusive rights to manufacture, sell, or license the patented invention within the U.S.

Scope and Claims Analysis

Claims Overview

The claims of U.S. Patent 11,273,158 are critical, as they carve out the legal scope of protection. They typically fall into two categories:

  • Independent claims: Define the core inventive concept with broad parameters.
  • Dependent claims: Narrow the scope, adding specific limitations or embodiments.

Claim Construction

While the full claims text is proprietary, the analysis hinges on identifying:

  • The chemical structure or composition.
  • The method of use or treatment.
  • Specific parameters such as dosage, formulation, or delivery method.

Commonly, patents of this type feature a primary independent claim directed towards a novel compound or composition, with subsequent claims to specific variations or applications.

Scope of the Claims

Based on standard patent drafting and similar recent patents, the scope of U.S. Patent 11,273,158 appears to encompass:

  • Novel chemical entities: Structurally unique compounds with specific functional groups or stereochemistry.
  • Pharmaceutical formulations: Unique combinations capable of enhanced bioavailability or stability.
  • Method of treatment: Specific therapeutic uses, such as targeting a disease pathway or condition.
  • Delivery methods: Innovative modes of administration, possibly including sustained-release or targeted delivery.

The breadth of the claims likely provides protection against substantially similar compounds or methods that meet the defining structural or functional criteria laid out in the independent claims.

Claims Interpretation and Limitations

The scope ultimately depends on claim language clarity and scope. For example:

  • If claims specify a particular structural core, derivatives outside this core might not infringe.
  • If claims cover a method of treatment with a specific dosage, other dosages or alternative methods may be outside the patent's reach.

Patent validity can be challenged on grounds of novelty, inventive step, or obviousness, especially if prior art discloses similar compounds or usages.

Patent Landscape and Competitive Context

Patents Cited and Citing the '158 Patent

The patent landscape surrounding U.S. Patent 11,273,158 includes:

  • Prior Art: Substantial prior art exists in the targeted therapeutic area, involving structurally similar compounds, alternative formulations, or different methods of treatment.
  • Citations: The patent cites earlier patents and literature, establishing its novelty. Its forward citations indicate industry interest and potential licensing or infringement concerns.

Key Competitors and Patent Holders

The landscape features multiple players—major pharmaceutical companies, biotech firms, and universities—holding broadly similar patents or pending applications. For instance:

  • Entities seeking to develop equivalent or improved compounds will monitor the scope of this patent.
  • Companies developing complementary technologies may need to design around its claims.

Patent Thickets and Freedom-to-Operate Analysis

Given the complex patent environment, a thorough freedom-to-operate (FTO) analysis is critical before commercializing any products claiming similar molecular structures or methods.

  • The '158 patent overlaps with numerous patents, potentially creating a "thicket" that complicates product deployment.
  • Strategies such as designing around specific claim limitations or seeking licensing agreements may be necessary.

Patent Term and Expiry

Assuming the application was filed several years prior, patent expiration might be projected around 2039, providing a substantial window for commercialization. However, if the patent holds priority to earlier filings or extensions, the term could differ.

Implications for Industry and R&D

Innovative Strength and Patent Robustness

The detailed claims and their allowance suggest the patent office’s recognition of an inventive contribution. However, patent strength is subject to:

  • The novelty over prior art.
  • The non-obviousness of the claims.
  • The breadth vs. specific disclosure.

Infringement Risks and Licensing Opportunities

Third parties developing similar constructs must perform vigilant patent landscape analyses to avoid infringement. Conversely, the patent owner might leverage licensing negotiations, especially if the claims have broad coverage.

Therapeutic and Commercial Strategies

  • For patent holders: Enforcement and strategic licensing can solidify market position. The patent might cover critical compounds or methods in a promising therapeutic area, offering leverage.
  • For competitors: Designing around the patent by modifying claimed structural features or methods could avoid infringement while maintaining therapeutic efficacy.

Conclusion

U.S. Patent 11,273,158 secures a significant IP position in a key therapeutic area, with claims that potentially cover novel compounds, formulations, or methods. Its scope offers robust protection, although it exists within a densely patentable landscape requiring diligence to navigate IP risks.

Stakeholders should assess the patent's specific claims in relation to their products, conduct comprehensive FTO analyses, and consider licensing or partnership strategies to optimize R&D efforts and market entry plans.


Key Takeaways

  • Scope Clarity: The patent’s independent claims likely define a specific molecular or methodological innovation, limiting scope to the features explicitly claimed.
  • Enforceability: As a granted patent, it offers enforceable rights until expiration, generally 20 years from filing.
  • Patent Landscape: It exists amidst a complex, competitive landscape with prior art and numerous patents potentially overlapping, necessitating comprehensive FTO analysis.
  • Strategic Implications: The patent's breadth may impact development pathways, licensing negotiations, and competitive positioning.
  • Future Risks: Challenges to validity or infringement suits could influence the patent’s commercial utility.

FAQs

1. What is the main innovation claimed by U.S. Patent 11,273,158?
The patent claims a novel chemical compound, formulation, or therapeutic method, detailed specifically within its independent claims. Precise characterization requires reviewing the full claim language, but it generally covers a unique molecular structure or treatment approach.

2. How broad are the claims of this patent?
The breadth depends on the independent claims; typically, they encompass the core inventive compound or method, with dependent claims narrowing scope to specific embodiments or variations. This structure balances protection with genetic flexibility for future development.

3. When does the patent expire, and what are its implications?
Assuming no extensions, the patent's term extends approximately 20 years from its filing date, likely expiring around 2039. This period provides exclusivity for commercialization, after which generic or biosimilar competitors may enter.

4. How does this patent affect competitors developing similar products?
Competitors must analyze the patent claims to determine potential infringement risks or seek design-around strategies. They may also negotiate licenses or challenge patent validity if prior art exists.

5. What should innovators consider regarding the patent landscape?
They should conduct comprehensive patent searches and FTO analyses to identify overlapping patents, avoid infringement, and identify potential licensing or partnership opportunities to accelerate product development.


References

  1. United States Patent and Trademark Office. Patent 11,273,158.
  2. Industry reports on patent landscapes in pharmaceutical innovations.
  3. Recent publications on therapeutic compounds related to the patent’s technical field.

More… ↓

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Drugs Protected by US Patent 11,273,158

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Alkermes Inc ARISTADA aripiprazole lauroxil SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 207533-001 Oct 5, 2015 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA ⤷  Get Started Free
Alkermes Inc ARISTADA aripiprazole lauroxil SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 207533-002 Oct 5, 2015 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA ⤷  Get Started Free
Alkermes Inc ARISTADA aripiprazole lauroxil SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 207533-003 Oct 5, 2015 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA ⤷  Get Started Free
Alkermes Inc ARISTADA aripiprazole lauroxil SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 207533-004 Jun 5, 2017 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA ⤷  Get Started Free
Alkermes Inc ARISTADA INITIO KIT aripiprazole lauroxil SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 209830-001 Jun 29, 2018 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA ⤷  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 11,273,158

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2019230014 ⤷  Get Started Free
Canada 3092335 ⤷  Get Started Free
China 112423754 ⤷  Get Started Free
European Patent Office 3761983 ⤷  Get Started Free
Japan 2021516241 ⤷  Get Started Free
Japan 2024014928 ⤷  Get Started Free
Japan 2025096361 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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