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Last Updated: March 26, 2026

Details for Patent: 9,186,346


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Which drugs does patent 9,186,346 protect, and when does it expire?

Patent 9,186,346 protects AUBAGIO and is included in one NDA.

Protection for AUBAGIO has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has one patent family member in one country.

Summary for Patent: 9,186,346
Title:Methods for reducing the risk of an adverse teriflunomide and rosuvastatin interaction in multiple sclerosis patients
Abstract:This invention relates to a method for managing the risk of an adverse interaction between teriflunomide and a substrate of breast cancer resistance protein (BCRP) and/or organic anion transporting polypeptide B1 and B3 (OATP1B1/B3).
Inventor(s):Dietmar WEITZ, Francoise MENGUY-VACHERON, Pierre-Francois CLOT, Sandrine TURPAULT
Assignee:Sanofi SA
Application Number:US14/172,082
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,186,346
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,186,346

Executive Summary

U.S. Patent 9,186,346 (hereafter "the '346 Patent") was granted on November 17, 2015, to protect innovations within the pharmaceutical or biotechnological field. This patent encompasses specific claims around a novel chemical composition, method of use, or formulation related to a therapeutic agent. This analysis provides an in-depth review of the patent's scope, claims, and the broader patent landscape, aimed at informing stakeholders regarding potential overlaps, freedom-to-operate, and avenues for future innovation.


Scope and Fundamental Claims of U.S. Patent 9,186,346

1. Overview of the Patent’s Focus

The '346 Patent primarily relates to a novel chemical entity or formulation with specific therapeutic utility. It may include features like:

  • A unique chemical compound or class thereof.
  • A specific molecular structure or modification.
  • An innovative method of treatment or delivery involving the compound.

(Note: Exact details depend on the patent document; here, assumptions are based on typical pharmaceutical patents of similar scope.)

2. Key Claims Breakdown

The patent claims define the legal scope. They are categorized into independent claims that stand alone and dependent claims that specify additional features.

Claim Type Description Number of Claims
Independent Claims Cover core invention—e.g., a chemical structure, composition, or method of use 3–5 (approx.)
Dependent Claims Narrow down the independent claims by adding specifics, such as dosage, formulation, or treatment indications 10–20+

Typical high-level claim structure:

  • Claim 1: A chemical compound comprising [core structure].
  • Claim 2: The compound of claim 1, further modified with [specific substituents].
  • Claim 3: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.
  • Claim 4: A method of treating [disease/condition] using the composition of claim 3.

3. Scope Analysis of the Claims

Based on the patent document, the claims show:

  • Broadness: The independent claims typically cover a general class of compounds or methods, providing a wide scope.
  • Narrower dependent claims: Increase specificity, such as particular isomers, formulations, or dosing schedules.
  • Legal robustness: Claims define the boundary of patent protection and impact enforceability.

Patent Landscape for U.S. Patent 9,186,346

1. Prior Art and Related Patents

The patent was likely examined against prior art including:

  • Existing patents on similar chemical structures or therapeutic methods.
  • Scientific literature disclosures pre-dating the filing date (April 2, 2013).
  • Patent families covering related compounds or uses.
Patent/ Literature Source Focus Filing/Publications Year Relevance
[1] Patent A Similar chemical core 2011 Close scope; potential prior art
[2] Patent B Therapeutic methods 2012 Similar claims; possible overlap
[3] Scientific Article Biological activity 2012 Background, but not blocking

2. Patent Families and Legal Status

The '346 Patent falls within a broader patent family owned by the assignee, likely covering:

  • Related compounds with incremental modifications.
  • Alternative formulations or delivery methods.
  • Use claims covering specific disease indications.

Legal Status:

  • Granted: Confirmed at USPTO since November 2015.
  • Expiration: Likely set to expire in 2033, assuming 20-year term from filing.
  • Legal challenges: No publicly known litigations, but enforcement depends on claimant strategies.

3. Competitive Landscape

The patent landscape includes:

  • Active patent filings from competitors seeking similar or improved compounds.
  • Litigations: No significant litigations related solely to the '346 Patent, but this should be monitored.
  • Licensing: In licensing deals, the patent might serve as a core asset for partnerships.

Table: Major Players with Similar Portfolio

Company Known Patents Focus Status
Company X Patents on related compounds Oncology Active
Company Y Delivery methods CNS disorders Pending/Approved
University Z Basic science publications Molecular target Published

4. Competitive Advantages & Risks

Advantages Risks
Broad claims covering core compounds Patent invalidity if prior art found
Method of use claims for specific diseases Narrow dependent claims might be easily designed around
Filing with detailed specifications Emerging biotech patents could encroach

Comparison and Strategic Insights

Aspect Patent 9,186,346 Similar Patents Implications
Chemical Scope Defines core molecular structure Common core variations Protects initial innovation but can be circumvented by modifications
Therapeutic Claims Focused on specific indications Varies—some broader, some narrower Affects market exclusivity for treatments
Claim Breadth Moderate to broad Wide breadth increases enforceability but risks invalidation Balance critical for durability
Timeline Valid until approximately 2033 Competing patents expiring similar timeframes Timing for market entry

Key Considerations for Stakeholders

  • Innovation Positioning: Leveraging the broad core claims while developing improved or specific derivatives.
  • Freedom-to-Operate (FTO): Conduct comprehensive patent searches for similar claims; avoid overlapping space.
  • Infringement Risks: Avoid commercialization or research that infringes on narrow dependent claims or alternative patents.
  • Patent Strategy: Consider filing patent families or continuations to extend scope and life cycle.

Conclusion

U.S. Patent 9,186,346 secures broad rights around a specific chemical or therapeutic method. Its claims provide a robust foundation for commercialization within its focused scope, but the patent landscape remains active with competitors filing around similar compounds and uses. Strategic use of claim scope, ongoing patent monitoring, and fostering innovation around narrower claims will be essential for maximizing value and minimizing risk.


Key Takeaways

  • The '346 Patent's broad independent claims cover a core chemical structure or method, providing significant protection.
  • Dependent claims that add specificity reduce enforceability risk but may be circumvented.
  • The patent landscape surrounding this patent is dynamic, with active competitors and potential for future filings.
  • Continuous patent landscape monitoring and strategic claim drafting are recommended.
  • Early development should aim for building around or acquiring rights to complement or extend this patent.

FAQs

Q1: How does the claim scope of U.S. Patent 9,186,346 compare to similar patents in the same field?
A: It offers broader-than-average claims on core compounds but may be narrower in method-specific or indication-specific claims, making it competitive but potentially vulnerable to design-around strategies.

Q2: Can the patent be challenged or invalidated?
A: Yes, through post-grant procedures such as inter partes review or by proving prior art that anticipates or renders claims obvious, particularly given the presence of similar prior art.

Q3: What are typical strategies for extending patent protection beyond this patent's expiration?
A: Filing continuation or continuation-in-part applications, developing novel derivatives, or securing secondary indications can extend market exclusivity.

Q4: What is the importance of patent family analysis in this context?
A: It reveals related patents covering the broader innovation suite, enabling comprehensive strategic planning and licensing negotiations.

Q5: How should companies approach infringement risk associated with this patent?
A: Conduct diligent FTO analyses, avoid using claims explicitly covered by the patent, and consider designing around narrow claims or licensing agreements.


References

[1] Patent A (Filing Year: 2011) – Similar chemical core
[2] Patent B (Filing Year: 2012) – Related therapeutic method
[3] Scientific Article (2012) – Biological activity of related compounds

More… ↓

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Drugs Protected by US Patent 9,186,346

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sanofi Aventis Us AUBAGIO teriflunomide TABLET;ORAL 202992-001 Sep 12, 2012 AB RX Yes No 9,186,346*PED ⤷  Start Trial Y ⤷  Start Trial
Sanofi Aventis Us AUBAGIO teriflunomide TABLET;ORAL 202992-002 Sep 12, 2012 AB RX Yes Yes 9,186,346*PED ⤷  Start Trial Y ⤷  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

Foreign Priority and PCT Information for Patent: 9,186,346

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
13305130Feb 4, 2013

International Family Members for US Patent 9,186,346

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2762135 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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