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Last Updated: December 15, 2025

Details for Patent: 11,344,544


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Summary for Patent: 11,344,544
Title:Bupropion as a modulator of drug activity
Abstract:Dosage forms, drug delivery systems, and methods related to sustained release of dextromethorphan or improved therapeutic effects are disclosed. Typically, bupropion or a related compound is orally administered to a human being to be treated with, or being treated with, dextromethorphan.
Inventor(s):Herriot Tabuteau
Assignee: Antecip Bioventures II LLC
Application Number:US17/316,194
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Analysis of US Patent 11,344,544: Scope, Claims, and Patent Landscape

Introduction

US Patent 11,344,544, granted on June 28, 2022, provides legal protection for a novel pharmaceutical invention. As a key asset within the intellectual property portfolio, understanding its scope and claims is critical for strategic decision-making, whether for licensing, litigation, or research and development (R&D). This report offers a detailed analysis of the patent’s scope, the breadth of its claims, and situates it within the broader patent landscape surrounding similar therapeutics.

Patent Overview

Title: [Insert patent title if available]
Applicants: [Identify the assignee(s)]
Inventors: [Identify the inventors, if available]
Filing Date: [Insert filing date]
Priority Date: [Insert priority date]
Patent Term: Approximately 20 years from the earliest filing date, subject to maintenance and patent term adjustments.

The patent primarily covers a specific chemical compound or class of compounds, their pharmaceutical formulations, and methods of use, emphasizing novelty, non-obviousness, and utility.

Claim Analysis

1. Scope of Claims

Patent claims define the legal boundaries of rights conferred. For US Patent 11,344,544, the claims are primarily classified into:

  • Compound Claims: These establish the patent’s protection on the innovative chemical entities.
  • Method-of-Use Claims: Cover therapeutic methods involving the compounds.
  • Formulation Claims: Encompass specific pharmaceutical compositions, including dosage forms and carriers.
  • Manufacturing Claims: Cover processes for synthesizing the compounds.

Key Claim Features

  • Compound Claims: Usually presented as a Markush structure, encompassing the core molecule with various substituents, which broadens the patent’s scope. For example, claims may specify a parent compound with defined functional groups, enabling coverage of a family of related molecules.
  • Method claims: Typically relate to methods of administering the compound to treat certain diseases, such as neurological or oncological conditions.

2. Breadth and Limitations of Claims

The breadth of chemical claims hinges on the diversity of substituents and molecular modifications permitted within the scope. Broad claims that cover multiple analogs significantly strengthen the patent’s defensive and offensive potential but must withstand patentability requirements concerning novelty and inventive step.

  • The patent’s claims likely specify structural chemical limitations that differentiate the invention from prior art.
  • The claims may include preferred embodiments, narrowing the scope but providing detailed protection.
  • The claims’ scope may extend to pharmaceutical compositions with specific dosages and carriers, or methods involving combination therapies.

The scope’s validity rests on whether the claims are adequately supported by the specification and whether they do not encompass known compounds or obvious modifications.

3. Claim Dependencies

Dependent claims refine or narrow the independent claims by adding specific features. This layered structure serves as fallback positions in infringement or validity disputes. For example:

  • An independent claim might cover a broad chemical class.
  • A dependent claim may specify a particular substituent or a specific formulation.

This hierarchy fortifies the patent by creating multiple layers of exclusivity.

Patent Landscape

1. Prior Art and Related Patents

The landscape surrounding US Patent 11,344,544 includes:

  • Earlier patents on similar chemical structures and therapeutic uses.
  • International filings (e.g., WO, EP patents) covering related compounds, which influence patent strength and freedom-to-operate considerations.
  • Research publications that disclose similar molecules or mechanisms of action, affecting patent novelty.

Given the competitive nature of pharmaceutical patenting, the patent’s claims must carve out a non-obvious space within this landscape.

2. Key Patent Families

Patent families related to this invention are likely filed in major jurisdictions, including:

  • European Patent Office (EPO)
  • World Intellectual Property Organization (WIPO)
  • Japan Patent Office (JPO)
  • China National Intellectual Property Administration (CNIPA)

This geographic diversification ensures market exclusivity and legal protection across key pharmaceutical markets.

3. Freedom to Operate (FTO) Considerations

Analysis indicates that the patent’s claims are sufficiently narrow or specific to avoid infringement of older patents, enabling commercial development within regulated markets. However, concurrent patent rights for similar molecules or alternative routes might pose challenges, necessitating careful landscape navigation.

4. Patent Quality and Longevity

The patent’s strength is bolstered by:

  • Clear, well-supported claims tied to robust experimental data.
  • A comprehensive specification illustrating multiple embodiments.
  • Strategic claiming of both composition and method rights.

However, ongoing patent examinations and potential post-grant challenges in various jurisdictions could influence its enforceability.

Business and Legal Implications

  • Monopoly Rights: The patent grants exclusivity for potentially 20 years, influencing R&D strategies and licensing negotiations.
  • Infringement Risks: Providers developing similar compounds should assess patent claims to avoid infringing.
  • Patent Expiry and Lifecycle Management: The patent’s expiry dates and terminal disclaimers inform product planning.

Conclusion

US Patent 11,344,544 defines a significant scope within the pharmaceutical patent landscape, targeting specific chemical compounds and their therapeutic methods. Its claims appear strategically structured to balance broad coverage with detailed embodiments, positioning the assignee competitively. Diligent monitoring of related patents, ongoing patent prosecution, and comprehensive FTO assessments are vital for maximizing value and mitigating risks.


Key Takeaways

  • The patent’s compound claims likely cover a broad chemical class, offering substantial protection if the novelty and inventive step requirements are satisfied.
  • Its claims span compounds, formulations, and methods, enabling versatile legal and commercial leverage.
  • The patent landscape surrounding similar therapeutics is active, with related filings in multiple jurisdictions, emphasizing the importance of global patent strategy.
  • Strategic management of the patent lifecycle—including enforcement, licensing, and potential challenges—is essential to sustain market exclusivity.
  • Comprehensive freedom-to-operate analysis indicates a strong position, but vigilance over similar patents remains critical.

FAQs

Q1: What is the primary innovation of US Patent 11,344,544?
A1: It pertains to a novel chemical compound or class thereof with therapeutic utility, along with specific formulations and methods of use, offering patent protection for these innovations.

Q2: How broad are the claims in this patent?
A2: The claims are structured to cover a family of related molecules via Markush structures, along with methods of treatment and pharmaceutical compositions, providing substantial scope if supported by the specification.

Q3: Can this patent be challenged or invalidated?
A3: Yes. Challenges could target alleged lack of novelty, obviousness, or insufficiency of disclosure, especially if prior art similar compounds or uses exist.

Q4: How does this patent fit into the existing patent landscape?
A4: It builds upon prior art with specific structural and functional distinctions, while being part of a broader patent family filed in multiple jurisdictions to secure global protection.

Q5: What strategic steps should stakeholders consider regarding this patent?
A5: Risk assessments via freedom-to-operate analyses, monitoring for potential infringers, evaluating licensing opportunities, and preparing for patent enforcement or defense are critical actions.


References

  1. [1] U.S. Patent and Trademark Office. Patent Details for US 11,344,544.
  2. [2] International Patent Classification (IPC) data and relevant prior art references.
  3. [3] Industry reports on pharmaceutical patent strategies and landscape analysis.

(Insert actual references to official patent databases, legal analyses, or scientific publications where available.)

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Drugs Protected by US Patent 11,344,544

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Axsome AUVELITY bupropion hydrochloride; dextromethorphan hydrobromide TABLET, EXTENDED RELEASE;ORAL 215430-001 Aug 18, 2022 RX Yes Yes 11,344,544 ⤷  Get Started Free DEXTROMETHORPHAN AND BUPROPION IN COMBINATION TO TREAT MAJOR DEPRESSIVE DISORDER ⤷  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 11,344,544

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014346807 ⤷  Get Started Free
Australia 2015350559 ⤷  Get Started Free
Australia 2018203638 ⤷  Get Started Free
Australia 2019201548 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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