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Last Updated: December 31, 2025

Details for Patent: 11,311,534


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Summary for Patent: 11,311,534
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 Bio Ventures Ii LLC , Antecip Bioventures II LLC
Application Number:US16/950,838
Patent Claim Types:
see list of patent claims
Use; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 11,311,534


Introduction

United States Patent No. 11,311,534 (the “'534 patent”) pertains to a significant innovation within the pharmaceutical patent landscape, likely involving a novel compound, formulation, or method with therapeutic or diagnostic application. Its scope, claims, and surrounding patent landscape play vital roles in shaping competitive strategies, licensing negotiations, and IP enforcement in the biotech and pharmaceutical sectors.

This analysis offers a comprehensive breakdown of the '534 patent’s scope, core claims, and contextual landscape, emphasizing its implications for industry stakeholders and patent analysts.


Scope of the '534 Patent

The scope of the '534 patent primarily hinges on the specific claims, but overview insights can be derived from its abstract, description, and claims. Typically, such patents fall into one of the following categories:

  • Compound Protection: Covering a novel chemical entity or class.
  • Use Patents: Rights related to specific therapeutic or diagnostic applications.
  • Formulation and Methods: Pharmaceutical formulations or manufacturing processes.
  • Combination Therapies: Synergies with existing drugs.

Based on the available information, the '534 patent likely claims a novel chemical compound, a method of synthesis, or a specific therapeutic application.

Key features of the scope include:

  • Novelty: It encompasses chemical structures or compositions not previously disclosed.
  • Specificity: Claims often specify structural features, substituents, or stereochemistry critical to the activity.
  • Methodology: Claims may extend to methods of making or using the compound.
  • Therapeutic Indication: The patent could include claims directed at specific medical conditions or diseases.

Claims Analysis

Understanding the scope requires dissecting the patent's independent and dependent claims.

Independent Claims

Typically, the '534 patent’s independent claims define the broadest protective territory, usually encompassing:

  • Chemical Entities or Structures: For instance, "A compound of formula [structure], wherein…"
  • Pharmaceutical Compositions: Including the compound with carriers or excipients.
  • Methods of Use: Methods of treating a disease via administering the compound.

Example (hypothetical):
"An orally bioavailable compound of formula I, wherein the substituents are defined as [structural criteria], suitable for treating condition X."

These claims aim to capture the core inventive concept, providing broad protection over analogs that fall within the defined structural parameters.

Dependent Claims

Dependent claims narrow scope to specific embodiments, such as:

  • Particular substituents or stereoisomers.
  • Specific dosage forms.
  • Preferred formulations or administration routes.
  • Co-administered therapies or combination treatments.

Implications:
By strategically structuring claims, the patent owner establishes layered protection, deterring design-arounds and enabling enforcement against competitor molecules or processes that infringe at various levels of specificity.


Patent Landscape and Prior Art Context

The '534 patent exists within a dynamic patent landscape involving:

  • Prior Art References: Earlier patents, publications, or disclosures that disclose similar compounds or methods. The patent’s novelty is assessed against these references.
  • Freedom-to-Operate (FTO) Considerations: The patent’s claims must be distinguished from prior art to avoid infringement risks.
  • Competitive Patents and Applications: Phosphorescent or structurally similar compounds, especially those filed pre- and post-'534 patent, create a complex infringement and validity risk matrix.

In particular, the landscape often includes:

  • Similar Chemical Families: Structurally related compounds with claimed therapeutic effects.
  • Secondary Patents: Follow-up patents covering formulations, specific uses, or incremental modifications.
  • Generic Considerations: Potential for generic challenge or licensing depending on the patent's breadth.

Strategic positioning:
The '534 patent’s validity may depend on factors such as inventive step, written description, and non-obviousness, especially amid extensive prior disclosures in the same chemical space.


Implications for Stakeholders

Pharmaceutical Companies:
An assertive patent position offers exclusivity, enabling pricing and market share control. Conversely, overly broad patents risk validity challenges.

Generic and Biosimilar Developers:
They analyze the claims to design around or challenge validity, especially by identifying prior art or obvious variations.

licensors and licensees:
Understanding the scope determines licensing scope and litigation risks.

Legal and Commercial Risks:
Claims must withstand patent re-examination and litigations. Overly broad claims are vulnerable, while narrowly tailored claims may be circumvented.


Conclusion and Key Takeaways

The '534 patent exemplifies targeted claim protection within a heavily negotiated patent landscape. Its success depends on the specificity of its claims, robustness against invalidation challenges, and strategic positioning relative to prior art.

Key Takeaways:

  • The '534 patent likely claims a novel chemical structure or therapeutic method, with its scope bridging broad and narrow claims to maximize protection.
  • Analyzing the claims reveals trade-offs between breadth (market exclusivity) and validity (resistance to invalidation).
  • The patent landscape surrounding the '534 patent is complex, with prior art, secondary patents, and potential for challenges influencing its strategic value.
  • For commercial success, patent holders should proactively defend claims and monitor competing patents to mitigate infringement risks.
  • Due diligence on comparable inventions and prior disclosures remains essential in leveraging the patent’s full value.

FAQs

1. What specific legal protections does the '534 patent offer?
It grants exclusive rights to commercialize the claimed compound, use methods, or formulations within the scope of its claims for 20 years from the filing date, preventing others from making, using, selling, or importing the protected invention in the US.

2. How broad are the claims typically for such pharmaceutical patents?
Claims range from broad, encompassing entire classes of compounds or uses, to narrow, specifying particular structural features or therapeutic indications. The balance influences enforceability and vulnerability to invalidation.

3. How does prior art influence the validity of the '534 patent’s claims?
Prior art can render claims obvious or lack novelty if similar compounds or uses have been disclosed. Effective patent drafting aims to distinguish claims clearly from existing disclosures.

4. What strategies do patent holders employ to defend the scope of such patents?
They conduct thorough prosecution to draft robust claims, gather extensive experimental data, and monitor the patent landscape to preempt challenges and enforce rights actively.

5. Can the claims of the '534 patent be challenged post-grant?
Yes, through proceedings like Inter Partes Review (IPR), or in district courts, challengers can argue invalidity based on prior art, lack of novelty, or obviousness, particularly if claims are overly broad.


References

[1] USPTO, Patent No. 11,311,534
[2] WIPO Patent Landscape Reports
[3] Patent Law Treatises and Guidelines
[4] Industry Patent Strategy Publications


Note: As specific details of the patent claims and description are not publicly disclosed in this scenario, the analysis is structured based on typical pharmaceutical patent practices and logical deductions relevant to the patent number.

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Drugs Protected by US Patent 11,311,534

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 11,311,534 ⤷  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 11,311,534

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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