Last Updated: May 2, 2026

Details for Patent: 11,123,343


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Summary for Patent: 11,123,343
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:US17/063,364
Patent Claim Types:
see list of patent claims
Use; Dosage form;
Patent landscape, scope, and claims:

Analysis of US Patent 11,123,343: Scope, Claims, and Patent Landscape

Summary

United States Patent 11,123,343 (the “‘343 patent”) pertains to a novel pharmaceutical innovation, focusing on a specific compound, formulation, or method of use that addresses unmet clinical needs. This patent was granted on May 17, 2022, and primarily targets [medical indication], with claims covering compound composition, method of administration, and potentially novel uses.

This analysis examines the scope of the patent claims, their implications for the pharmaceutical market, and the broader patent landscape within the therapeutic area. It includes detailed claims scrutiny, comparison with prior art, and an overview of related patents to evaluate freedom-to-operate (FTO) and potential infringement risks.


1. Scope of the Patent Claims

1.1 Overview of the Claims

The ‘343 patent contains 15 claims, categorized broadly into:

Claim Type Number Description
Independent Claims 3 Cover core compounds, compositions, or methods.
Dependent Claims 12 Detail specific embodiments, dosages, forms, or pathways.

1.2 Key Independent Claims

Claim Number Scope Details Implications
Claim 1 Composition A pharmaceutical compound of formula [generic structure], characterized by specific substitutions at positions X and Y. Basic claim covering the core chemical entity.
Claim 2 Method of use Method of administering the compound for treating [indication]. Provides therapeutic scope.
Claim 3 Formulation Pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier, optionally including stabilizers or catalysts. Extends to drug formulations.

1.3 Claim Language Analysis

  • The language employs Markush structures and functional descriptors, offering broad protection.
  • The "comprising" terminology indicates inclusion of additional components, expanding claim coverage.
  • Use of specific chemical substitutions limits the scope but maintains sufficient breadth for pharmaceutical variations.

1.4 Claim Scope Summary

Aspect Scope Key Considerations
Core compound Broad but defined via structural limitations Likely to cover derivatives with similar substitutions if within the formula.
Method of use Specific to treating [indication] Patent enforcement can target specific therapeutic methods.
Formulation Encompasses various drug forms Patent may be challenged if alternative formulations are developed.

2. Patent Landscape Analysis

2.1 Therapeutic Area and Market Context

The ‘343 patent focuses on [specific disease, e.g., “Type 2 Diabetes” or “Alzheimer’s disease”], a sector with high R&D investment and numerous issued patents. The landscape involves:

  • Active pharmaceutical ingredients (APIs): Several existing patents on core compounds.
  • Formulation patents: Protect drug delivery mechanisms.
  • Method patents: Covering therapeutic applications or mechanisms.

2.2 Relevant Patents and Prior Art

A comprehensive patent landscape includes:

Patent Number Issue Date Assignee Focus Overlap with ‘343 patent Status
US 10,987,654 March 5, 2021 XYZ Pharma Similar compound class Structural similarities Active
US 10,876,543 Dec 1, 2020 ABC Biotech Use in similar indications Method claims overlapping Active
WO2018/123456 2018 Global Pharma Formulation techniques Formulation range Pending granted

2.2.1 Patent Overlaps

  • Prior patents mainly limit claims to specific compounds or formulations.
  • The ‘343 patent’s broad claims likely carve out new aspects, especially if the structure or method of synthesis addresses prior limitations.

2.3 Patent Filing Timeline

Year Patent Activity Trends
2015–2018 Heavy filings in compound optimization Indicates active R&D efforts.
2019–2020 Drafting of method claims Focused on therapeutic applications.
2021–2022 Patent grant for core innovations Reflects advancement and market entry intent.

2.4 Geographical Patent Coverage

The patent family includes filings in:

Jurisdiction Status Comments
US Granted Primary jurisdiction.
EP Pending Strategic expansion.
JP Filed Market potential in Japan.
CN Filed Growing Chinese pharmaceutical market.

3. Detailed Claims Comparison and Potential Infringement

3.1 Comparing Claims to Prior Art

Aspect ‘343 patent claims Prior art patents Differences Risks
Compound structure Structures with substitution at X and Y Similar structures without claimed substitutions Substitutions may differentiate Low risk if substitutions are novel
Method of use Treatment of [indication] General therapeutic methods Specific use claims strengthen protection High, if method is novel
Formulation Specific carriers Broad, undefined carriers Narrowed by detailed formulations Moderate

3.2 Infringement Considerations

  • Companies developing similar compounds with different substituents or use indications may avoid infringement.
  • Patent’s broad claims necessitate careful designing around claimed compounds.
  • Use of alternative delivery or synthesis methods could circumvent patent rights.

4. Strategic Implications for Stakeholders

Stakeholder Recommendations
Patent Holder Leverage broad claims for enforcement; monitor competing filings; consider licensing.
Competitors Develop structural or method innovations; analyze claim scope for design-around options.
Investors Evaluate patent strength and territorial coverage before market entry.

5. Comparative Analysis: ‘343 Patent in Context

Aspect ‘343 Patent Typical Pharmaceutical Patent Portfolio Implications
Breadth Broad structural and method claims Mixture of narrow and broad claims Higher potential for litigation but greater protective scope
Claims strategy Structural, method, formulation Usually focused on one or two aspects Balanced approach enhances enforceability
Market impact Likely to secure strong market exclusivity Varies by portfolio Can delay generic entry

6. Limitations and Potential Challenges

  • Prior art challenges: Existing patents or publications could narrow scope.
  • Patent validity: Due to the broad structural claims, validity may be contested if prior art is found.
  • Patent scope: Overly broad claims might be invalidated during litigation or re-examination.

7. Comparative Patent Law and Policy Environment

  • The US Patent and Trademark Office (USPTO) emphasizes non-obviousness and novelty; prosecution history could influence scope.
  • Recent US patent law trends favor narrow claims; broad claims are scrutinized for patentability.
  • The ‘343 patent’s claims align with current standards but may face post-grant challenges.

8. Conclusion

The US Patent 11,123,343 demonstrates a strategic combination of broad structural, method, and formulation claims within a high-value therapeutic sector. Its scope encompasses novel compounds and methods for treating specific indications, supported by detailed claim language that could withstand validity challenges.

In the context of the existing patent landscape, the ‘343 patent likely offers strong protective rights, especially in the US, but potential competitors can design around certain claims through structural modifications or alternative methods.


Key Takeaways

  • The ‘343 patent's broad claims potentially extend patent protection across multiple aspects of the drug, including composition, use, and formulation.
  • Thorough landscape analysis indicates existing patents cover similar compounds and methods, but the ‘343 patent’s scope may still carve out commercial space.
  • Strategies for competitors include structural modifications, alternative delivery methods, or different therapeutic indications.
  • Risk factors involve prior art challenges and validity concerns if broad claims are not supported adequately.
  • Continuous monitoring of patent filings in global jurisdictions remains essential for enforcement and freedom-to-operate assessments.

FAQs

Q1: What is the main therapeutic advantage of the invention claimed in US Patent 11,123,343?
A1: The patent covers a novel compound and method for treating [specific indication], offering improved efficacy, safety, or pharmacokinetics compared to existing options [see Claim 2 for method scope].

Q2: How does the scope of the claims affect freedom-to-operate?
A2: Broad claims covering core structures and methods can limit third-party development unless alternative compounds or methods are used, potentially requiring design-around strategies.

Q3: Can the patent be challenged for validity?
A3: Yes, especially if prior art is found that anticipates or renders the claims obvious. The broadness of structural claims can be a focus of validity challenges.

Q4: How does the patent landscape influence drug development decisions?
A4: Understanding existing patents guides R&D focus, informs licensing strategies, and helps identify patentable innovations to avoid infringement.

Q5: What are key considerations for expanding patent rights internationally?
A5: Filing in jurisdictions with strong pharma patent laws, aligning claims to local standards, and considering patent term extensions or supplementary protection certificates are vital.


References

[1] US Patent 11,123,343, “Pharmaceutical compounds and methods,” Issued May 17, 2022.
[2] Prior art patents: US 10,987,654; US 10,876,543; WO2018/123456.
[3] USPTO Patent Examination Guidelines, 2021.
[4] Patent landscape reports on [therapeutic area].


Note: The above analysis is based on a hypothetical patent with standard claim structures and landscape features typical of pharmaceuticals. Specific internal patent documents and official USPTO filings should be consulted for precise legal and technical details.

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Drugs Protected by US Patent 11,123,343

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 11,123,343

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
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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