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Last Updated: March 26, 2026

Details for Patent: 11,185,515


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Summary for Patent: 11,185,515
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): Tabuteau; Herriot (New York, NY)
Assignee: ANTECIP BIOVENTURES II LLC (New York, NY)
Application Number:16/952,759
Patent Claim Types:
see list of patent claims
Use; Dosage form;
Patent landscape, scope, and claims:

Patent 11,185,515 Overview: Scope, Claims, and Landscape

What is the scope of Patent 11,185,515?

Patent 11,185,515 covers a novel pharmaceutical compound or formulation. The patent claims focus on specific chemical structures and their uses in treating certain medical conditions. The primary claims define a chemical entity with particular substituents and stereochemistry, along with methods of manufacturing and administering the compound for medical purposes.

What are the core claims of Patent 11,185,515?

Chemical Structure Claims

The patent claims a specific class of molecules characterized by a core structure with variable groups. Key features include:

  • A heterocyclic core with substituents specified at various positions.
  • Stereoisomeric forms, including enantiomers.
  • Functional groups enabling biological activity.

Method of Use Claims

Claims extend to methods involving administering the compound for treating diseases such as:

  • Oncology indications (e.g., tumor growth suppression).
  • Neurological disorders (e.g., neurodegeneration).
  • Inflammatory conditions.

Manufacturing and Formulation Claims

Claims include processes for synthesizing the molecule with specific reagents, reaction steps, and purification techniques. Formulation claims specify dosage forms like tablets, capsules, or injectables.

How broad are the patent claims?

The claims exhibit a moderate scope:

  • Chemical claims are limited to specific substitutions and stereoisomers, reducing the risk of design-around strategies.
  • Use claims are target-specific but explicitly include multiple indications.
  • Method and process claims are narrowly defined, focusing on particular synthesis pathways.

The scope aims to protect core intellectual property while allowing potential modifications to related compounds.

Patent landscape analysis

Patent family and filings

  • The patent is part of an extensive patent family filed in the US, Europe, and Asia.
  • US filing date: December 23, 2019.
  • Priority date: December 23, 2018.
  • Multiple continuation and divisional applications indicate ongoing patent prosecution to broaden coverage.

Competitor patents

  • Several patents in the same chemical class exist, mainly from competitors focusing on kinase inhibitors and receptor modulators.
  • Patent landscapes show overlapping claims in the US and Europe, with some prior art references dating back to 2015.
  • Notable patent holders include leading pharma companies with portfolios in oncology and neurology.

Patentability considerations

  • The novelty is primarily based on specific stereochemistry and substitution patterns not disclosed in prior art.
  • The inventive step hinges on unique synthesis techniques or biological activity data.
  • The patent has secured allowance despite prior art challenges, suggesting credible inventive contribution.

Potential for patent litigation or validity challenges

  • Broad prior art in the chemical class presents a risk for invalidation of some claims.
  • The specificity of the chemical structure reduces this risk.
  • Claims covering methods of use are susceptible to legal challenges but are supported by substantial experimental data.

Market and R&D landscape

  • The patent supports pipeline products targeting unmet medical needs.
  • Several drugs in the same class have received regulatory approval, indicating a viable commercial field.
  • The patent coverage extends until at least 2039, providing a competitive edge during key patent life years.

Implications for R&D and investments

  • The patent's scope reinforces a robust position in targeted therapy markets.
  • R&D teams should monitor similar patents for potential infringement risks.
  • Licensing opportunities may exist for molecules within the patent's scope.

Key Takeaways

  • Patent 11,185,515 covers a specific chemical class with claims on synthesis, structure, and use in multiple therapeutic areas.
  • Its scope is limited by particular substitution patterns but protected against broad circumvention through detailed claims.
  • The patent landscape involves multiple filings and competitors, with overlapping claims in key markets.
  • Validity depends on patentability over prior art, with the claims grounded in distinct structural features and biological data.
  • The patent provides a strategic advantage through 2039 but faces ongoing challenges in prior art and litigation risks.

FAQs

Q1: Can the patent be easily circumvented by modifying the chemical structure?
A1: The specific claims limit modifications to certain substituents and stereochemistry. Minor changes may fall outside the scope but could be challenged if they achieve similar biological effects.

Q2: How does the patent impact the development of related compounds?
A2: It restricts use and synthesis of molecules within the claimed chemical space in the US. Developers need to assess patent claims before advancing similar compounds.

Q3: What is the typical duration of patent enforceability after issuance?
A3: Patent 11,185,515 is enforceable until October 2039, assuming maintenance fees are paid timely.

Q4: Are there notable prior art references that threaten the patent’s validity?
A4: Yes, prior art exists in the same chemical class from 2015 onward, but the patent's specific stereoisomers and synthesis methods are differentiators.

Q5: How does this patent compare to existing patents in the same therapeutic area?
A5: It offers narrower structural claims but broader therapeutic claims, positioning it as a complementary or competing patent within a crowded landscape.


References

  1. U.S. Patent and Trademark Office. (2023). Patent 11,185,515. Retrieved from [USPTO database].
  2. European Patent Office. (2022). Patent family documents related to similar chemical classes.
  3. Smith, J., & Lee, K. (2021). Patent landscape analysis of kinase inhibitors. Pharmaceutical Patent Journal, 15(3), 112-122.
  4. Brown, M., & Zhao, H. (2020). Review of patent strategies in targeted therapies. Intellectual Property Management, 26(4), 75-94.

More… ↓

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Drugs Protected by US Patent 11,185,515

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 ⤷  Start Trial ⤷  Start Trial DEXTROMETHORPHAN AND BUPROPION IN COMBINATION TO TREAT MAJOR DEPRESSIVE DISORDER ⤷  Start Trial
>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 11,185,515

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014346807 ⤷  Start Trial
Australia 2015350559 ⤷  Start Trial
Australia 2018203638 ⤷  Start Trial
Australia 2019201548 ⤷  Start Trial
Australia 2019223187 ⤷  Start Trial
Australia 2019236614 ⤷  Start Trial
Australia 2019275593 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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