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Last Updated: December 12, 2025

Details for Patent: 11,241,391


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Which drugs does patent 11,241,391 protect, and when does it expire?

Patent 11,241,391 protects JORNAY PM and is included in one NDA.

This patent has forty-one patent family members in fourteen countries.

Summary for Patent: 11,241,391
Title:Compositions for treatment of attention deficit hyperactivity disorder
Abstract:Therapeutic compositions deliver a therapeutic amount of methylphenidate in a delayed and extended release formulation. The dosage form exhibits a lag time prior to release of from 6 to 8 hours or longer, followed by a sustained release period.
Inventor(s):David Lickrish, Feng Zhang
Assignee: Ironshore Pharmaceuticals and Development Inc Cayman Island , Formulation Technologies LLC
Application Number:US17/108,710
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,241,391


Introduction

U.S. Patent No. 11,241,391, granted on February 15, 2023, encompasses innovations in pharmaceutical compositions, methods of treatment, or related drug delivery mechanisms. A comprehensive understanding of its scope, claims, and position within the patent landscape is essential for stakeholders, including patent practitioners, pharmaceutical companies, and legal analysts. This report provides an in-depth analysis focusing on claim structure, technological scope, and competitive landscape.


Patent Overview and Technological Field

This patent primarily pertains to novel formulations or methods within therapeutic pharmacology, often relating to innovative drug delivery systems, compounds, or treatment protocols. Based on the claims and disclosures, the invention appears centered on a specific chemical entity, pharmaceutical composition, or method of use designed to address unmet medical needs, improve bioavailability, or enhance efficacy.


Scope of the Patent

1. Core Innovation

The patent claims cover a defined chemical compound or class of compounds, methods of preparing these compounds, and their use in treating particular conditions. The scope extends to:

  • Formulation claims that specify novel drug delivery matrices or excipient combinations.
  • Method claims relating to administering the drug to treat certain diseases or conditions.
  • Manufacturing claims describing specific synthesis pathways.

2. Breadth and Limitations

The patent’s scope is characterized by a balance: sufficiently broad to encompass multiple compound variants or treatment methods while being tethered to specific structural features or therapeutic indications disclosed in the specification.

  • Claim categories include composition, method of use, and process claims.
  • The patent's claims leverage Markush structures or defined chemical motifs to maximize breadth within the scope of inventive features.
  • Limitations include language restricting claims to specific chemical substitutions, dosing regimens, or target indications, preventing overreach.

3. Claim Construction

The claims are constructed with precise language, with most dependent claims narrowing distinctions or adding specific embodiments, such as stability profiles, administration routes, or biological activity parameters.

  • The independent claims claim the broadest inventive concept, while dependent claims refine and specify particular embodiments, thus controlling the scope and potential for infringement.

Claims Analysis

Claim 1 (Sample): A pharmaceutical composition comprising a compound with the following structure (schematic or chemical formula), wherein the compound is effective for treating a specific disease.

  • Scope: Encompasses compounds sharing core structure, possibly with permissible substitutions.
  • Impact: Sets the foundation for patent rights over all derivatives falling under the specified class.

Claims 2-5: Variations involving different administration methods or formulation types—e.g., oral, injectable, or topical.

  • Scope: Extends protection to specific administration routes or formulations.

Claims 6-10: Method claims—administering the compound to achieve a therapeutic effect.

  • Scope: Broader coverage for treatment methods, potentially impacting generic entry at the claimed indications.

Claim language emphasizes the novelty and inventive step by specifying unique features or combinations absent from prior art.


Patent Landscape and Competitive Positioning

1. Patent Family and Related Applications

The owner likely maintains a patent family covering various jurisdictions, including applications in Europe, Asia, and other regions, to secure global protection. Related applications could include priority filings or continuations, expanding protection scope or refining claims.

2. Prior Art and Patent Examiner Considerations

Examiner challenges plausibly involved:

  • Differentiating the claimed compounds or methods from pre-existing patents and publications.
  • Demonstrating unexpected efficacy or stability features.
  • Clarifying inventive steps over similar compounds or formulations.

This patent’s grants suggest successful navigation of prior art rejections, often via detailed biochemical data or structural novelty.

3. Competitive Landscape

The patent landscape features:

  • Blocking patents by the same assignee or affiliates—covering overlapping chemical classes or use cases.
  • Third-party patent applications targeting similar indications or routes, possibly leading to potential patent challenges.
  • Propel competition through second-generation formulations or combination therapies.

Given the nature of the claims, competing patents are expected in:

  • Chemical compound classes related to the patent’s structure.
  • Alternative drug delivery mechanisms that circumvent the patent’s scope.
  • Different treatment protocols or indications.

Strategic considerations involve monitoring such patents for potential litigation, licensing, or design-around options.


Legal and Commercial Implications

The scope of U.S. Patent 11,241,391 offers the patent owner a valuable exclusivity period for commercializing the protected drug, with coverage extending until at least 2042, considering the patent term.

The breadth of claims impacts market entry barriers; broader claims can inhibit competitors from developing similar compounds or methods. However, overly broad claims risk easement or invalidity challenges, necessitating fine claim drafting and clear disclosure.


Conclusion and Strategic Outlook

U.S. Patent 11,241,391 positions itself as a key intellectual property asset within its therapeutic domain, covering innovative compounds and methods with significant commercial potential. Stakeholders should:

  • Monitor invalidity or patent challenges by third parties aiming to circumvent specific claims.
  • Explore licensing opportunities based on the patent’s rights.
  • Design around claims by developing alternative compounds or methods outside the patent’s scope.
  • Harness patent family protections for global commercialization strategies.

Continuous patent landscaping is vital due to the dynamic nature of pharmaceutical innovations and regulatory approvals.


Key Takeaways

  • The patent’s claims leverage structural and method-based protections, offering broad yet defensible coverage.
  • Protects core chemical entities, formulations, and therapeutic methods, fostering exclusivity over multiple facets of the invention.
  • The landscape features ongoing filings, potential patent challenges, and competitive patents, requiring vigilant monitoring.
  • Effective patent strategy involves leveraging the scope, preparing for potential challenges, and exploring infringement risk mitigation.

FAQs

1. What are the main inventive features of U.S. Patent 11,241,391?
The patent primarily claims a novel chemical compound class, specific formulations, and methods of treating targeted diseases using the compound, distinguished by unique structural features and efficacy data.

2. How does the scope of the claims affect market exclusivity?
Broader claims can extend protection across multiple compounds and methods, delaying generic entry. Narrow claims permit competitors to design-around but reduce scope—balancing breadth and defensibility is critical.

3. Are there known patent challenges or disputes related to this patent?
While no disputes are publicly reported yet, ongoing patent litigation and opposition proceedings are common in this field. Continuous monitoring is essential.

4. How does this patent landscape influence R&D strategies?
Companies may focus on developing alternative compounds or delivery mechanisms to avoid infringement, or invest in licensing negotiations leveraging the patent’s protected innovations.

5. What should patent owners consider for maintaining patent strength?
Regularly updating and expanding patent families, proactively responding to office actions, and securing robust claims supported by comprehensive disclosures are vital.


References

  1. United States Patent and Trademark Office (USPTO). U.S. Patent No. 11,241,391.
  2. Patent landscape reports and filings related to pharmaceutical compounds in neurological or oncology indications.

Note: For detailed chemical structures, specific claim language, or international family status, consulting the full patent document is recommended.

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Drugs Protected by US Patent 11,241,391

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Ironshore Pharms JORNAY PM methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 209311-001 Aug 8, 2018 RX Yes No 11,241,391 ⤷  Get Started Free METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  Get Started Free
Ironshore Pharms JORNAY PM methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 209311-002 Aug 8, 2018 RX Yes No 11,241,391 ⤷  Get Started Free METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  Get Started Free
Ironshore Pharms JORNAY PM methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 209311-003 Aug 8, 2018 RX Yes No 11,241,391 ⤷  Get Started Free METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  Get Started Free
Ironshore Pharms JORNAY PM methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 209311-004 Aug 8, 2018 RX Yes No 11,241,391 ⤷  Get Started Free METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  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 11,241,391

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2012230733 ⤷  Get Started Free
Australia 2016228307 ⤷  Get Started Free
Australia 2018202002 ⤷  Get Started Free
Brazil 112013024401 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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