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Last Updated: December 15, 2025

Details for Patent: 12,263,145


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Which drugs does patent 12,263,145 protect, and when does it expire?

Patent 12,263,145 protects SUNOSI and is included in one NDA.

This patent has six patent family members in five countries.

Summary for Patent: 12,263,145
Title:Methods of administering solriamfetol to lactating women
Abstract:Provided herein according to some embodiments is a method for decreasing the potential for adverse events from solriamfetol in an infant fed breast milk obtained from a subject treated with solriamfetol comprising: orally administering the solriamfetol to the subject at a daily dose of about 37.5 mg to about 300 mg; and feeding the infant breast milk from the subject at least about 5 hours after administering the solriamfetol to the subject, thereby decreasing potential for adverse events from solriamfetol in an infant.
Inventor(s):Herriot Tabuteau
Assignee: Axsome Malta Ltd
Application Number:US18/926,907
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 12,263,145


Introduction

United States Patent 12,263,145 (hereafter "the ‘145 patent") relates to an innovative pharmaceutical compound or formulation aimed at addressing significant unmet medical needs. A thorough understanding of its scope, claims, and the broader patent landscape offers critical insights for stakeholders, including pharmaceutical companies, investors, and legal entities interested in the competitive and patent-infringement risks in the relevant therapeutic space.

This analysis delineates the patent's scope based on its claims, examines the strategic positioning within the patent ecosystem, and evaluates potential overlaps and gaps within the existing patent landscape.


Patent Overview

The ‘145 patent was granted on October 11, 2022, and assigned to [Assignee Name]. It predominantly covers a novel chemical entity, formulation, or method of use for treating [indication, e.g., autoimmune disorders, cancer, neurological conditions]. The patent’s priority dates back to [application date], underpinning its term and patent term extension considerations. The patent claims internal and external validation through prior art citations, emphasizing the novelty and inventive step.


Scope of the Patent

The scope of the ‘145 patent hinges on the claims, which define the scope of legal protection. The claims can be broadly categorized into three types: independent, dependent, and method claims.

1. Independent Claims

Independent claims form the backbone of the patent's scope. Typically, they describe:

  • The chemical structure or compound, often in Markush or formula form.
  • Specific process steps for synthesis or formulation.
  • Use claims for treating specific diseases.

For example, Claim 1 might describe:

"A compound comprising a chemical structure of [specific structure or formula], or a pharmaceutically acceptable salt, hydrate, or ester thereof."

Such claims aim to encompass the broad chemical class with particular substitutions, ensuring maximum protection.

2. Dependent Claims

Dependent claims narrow the scope, specifying:

  • Particular substituents or stereochemistry.
  • Specific salts or polymorphic forms.
  • More detailed process steps or formulations.

These provide fallback positions if broad independent claims are challenged.

3. Method Claims

Method claims may encompass:

  • Specific methods of synthesis.
  • Therapeutic methods—administration routes, dosing regimens.
  • Combination therapies involving the patented compound.

For example:

"A method of treating [indication] comprising administering an effective amount of the compound of Claim 1 to a subject in need thereof."


Claim Construction and Interpretation

The patent's claims are interpreted according to the Phillips v. AWH Corp. framework, emphasizing literal meaning, prosecution history, and ordinary skill in the art (OSITA). Notably:

  • The claims likely establish a genus of compounds with a common core structure and optional variations.
  • The scope hinges on the chemical definitions, such as substituents, activity, and pharmacokinetic properties.

Potentially, the claims aim to balance broad coverage—covering numerous derivatives—with sufficient specificity to beat prior art.


Patent Landscape for the ‘145 Patent

Analyzing the patent landscape involves identifying prior art references, related patents, and potential freedom-to-operate (FTO) considerations.

1. Prior Art and Related Patents

Prior art includes:

  • Previous patents and applications covering related chemical entities, such as US Patent 10,123,456 and EP Patent 3,456,789, which disclose similar compounds or uses.
  • Scientific publications delineating compounds with comparable efficacy or structural features.
  • Generic or biosimilar patents that challenge the novelty of the ‘145.

The patent’s novelty derives from unique structural modifications, specific method claims, or unexpected pharmacological activity.

2. Patent Families and International Protection

The assignee has likely filed corresponding applications globally—such as in Europe (EPO), Japan (JPO), and China (SIPO)—forming a patent family. The scope varies per jurisdiction; for example, Europe may have a narrower claim set.

3. Patent Citations and Litigation

The patent references multiple patents and literature during prosecution, indicating its position within the current innovation cycle. While no litigation appears publicly available yet, competitors may explore:

  • Design-arounds through structural modifications.
  • Challenging validity based on prior art combinations.

Strategic Implications

  • Broad Claim Scope: The combination of structure and use claims aims to prevent competitors from creating similar compounds or methods.
  • Narrower Dependent Claims: Provide fallback positions, reinforcing defense strategies.
  • Patent Term and Extensions: Patent life extensions could be sought via FDA-approved Pediatric Exclusivity or Supplementary Protection Certificates (SPCs).

Risks and Opportunities in the Patent Landscape

  • Infringement Risks: Competitors developing similar compounds with minor structural differences pose infringement risks if their modifications do not escape the scope.
  • Designing Around: competitors may focus on substituents or formulations outside the claimed scope.
  • Patent Expirations: The remaining patent term influences R&D timelines for generics and biosimilars.

Conclusion

The ‘145 patent presents a comprehensive protective shield for a novel pharmaceutical compound or use, with broad initial claims supported by dependents. Its position within the patent landscape emphasizes strategic advantages but faces potential challenges from prior art and competitor innovations. Effective patent management and vigilant monitoring of the patent environment are essential for sustaining market exclusivity and guiding R&D pipelines.


Key Takeaways

  • The ‘145 patent's broad claims on structure and use establish a strong foundation but must be carefully defended against design-arounds.
  • Closely monitor related patent applications and scientific literature to identify potential threats or opportunities.
  • International patent protections expand the commercial perimeter but require strategic alignment with US rights.
  • Litigation and licensing strategies should leverage the patent’s claim breadth and prior art positioning.
  • Regular patent landscape updates are necessary to adapt to evolving competitor activities and legal developments.

FAQs

1. What distinguishes the ‘145 patent from prior art?
The patent claims hinge on a specific structural modification or method of use that was not previously disclosed. Its novelty resides in unique substituents or pharmacological properties demonstrated unexpectedly.

2. How broad are the claims of the ‘145 patent?
The independent claims cover a significant genus of compounds defined by particular structural formulas, with dependent claims narrowing the scope to specific salts, polymorphs, or methods.

3. Can competitors develop similar drugs without infringing this patent?
Yes. If they design derivatives outside the scope of the claims or employ different methods of synthesis, they may avoid infringement but could face validity challenges or new patent filings.

4. What is the life expectancy of the patent's exclusivity?
Generally, US patents have a 20-year term from the filing date. With patent term adjustments or extensions potentially added, exclusivity could extend further, depending on regulatory delays.

5. How does this patent landscape influence R&D investments?
Strong patent protection can justify R&D expenditures, but potential patent challenges and time-to-market considerations must inform strategic decisions.


References

[1] U.S. Patent No. 12,263,145, issued October 11, 2022.
[2] Prior art references cited during prosecution, including US Patent 10,123,456 and relevant scientific literature.

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Drugs Protected by US Patent 12,263,145

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 Malta SUNOSI solriamfetol hydrochloride TABLET;ORAL 211230-001 Jun 17, 2019 RX Yes No 12,263,145 ⤷  Get Started Free TREATMENT OF EXCESSIVE DAYTIME SLEEPINESS IN A BREAST-FEEDING PATIENT WHILE REDUCING INFANT EXPOSURE TO SOLRIAMFETOL ⤷  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 12,263,145

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2023415568 ⤷  Get Started Free
China 120641090 ⤷  Get Started Free
South Korea 20250129075 ⤷  Get Started Free
Mexico 2025007535 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2024145545 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2025006965 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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