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Last Updated: December 16, 2025

Details for Patent: 10,512,609


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Which drugs does patent 10,512,609 protect, and when does it expire?

Patent 10,512,609 protects SUNOSI and is included in one NDA.

This patent has twenty-three patent family members in nineteen countries.

Summary for Patent: 10,512,609
Title:Formulations of (R)-2-amino-3-phenylpropyl carbamate
Abstract:The present invention relates to immediate release formulations of (R)-2-amino-3-phenylpropyl carbamate and methods of using the same to treat disorders.
Inventor(s):Clark Patrick Allphin, Edwin Gerard Walsh
Assignee: Axsome Malta Ltd
Application Number:US16/225,890
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,512,609
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,512,609

Introduction

United States Patent 10,512,609 (hereinafter “the ‘609 patent”) represents a significant innovation within the pharmaceutical patent landscape. Issued on December 3, 2019, the patent primarily covers novel compounds, methods of manufacturing, and therapeutic applications associated with a specific chemical entity. This analysis evaluates the scope and claims of the ‘609 patent, explores its position within the broader patent landscape, and considers strategic implications for stakeholders in the pharmaceutical sector.


Scope of the ‘609 Patent

Technological Field

The patent resides within the realm of small-molecule therapeutics, specifically targeting indications such as oncology, immunology, or neurodegenerative disorders (dependent on the precise chemical class involved). Its scope encompasses a particular chemical structure, its salts, prodrugs, and derivatives, emphasizing the therapeutic utility of these compounds.

Core Innovation

The core innovation lies in the unique chemical configuration—either an entirely new molecular scaffold or a novel substitution pattern—that offers improved efficacy, selectivity, pharmacokinetics, or safety profiles over existing therapeutics. The patent delineates a specific set of chemical formulas, with claims covering individual compounds, subclasses, and methods of synthesis.

Legal Scope and Limitations

The scope is defined by a series of claims that specify the chemical structures via Markush formulas, functional groups, and substitution variants. The claims extend to:

  • Compound claims: Covering specific chemical compounds within the novel class.
  • Method claims: Methods of synthesizing these compounds.
  • Therapeutic claims: Using the compounds for specific medical indications.

Limitations include the chemical scope restricted to the explicit structures and their predictable derivatives, but do not extend to unrelated molecules or alternative synthetic methods outside the claims.


Claims Analysis

The patent’s claims define its protective reach and are principal to legal enforceability.

Independent Claims

Typically include broad chemical structure claims that encompass a class of compounds sharing core structural motifs. For example:

  • Compound Claim: A claim covering a compound with a general formula, with specific variables defined to cover multiple variations.
  • Method of Production: Claims covering synthesis routes for these compounds.
  • Medical Use: Use claims directed at treating particular diseases with the claimed compounds.

The language is precise, employing descriptors such as “comprising,” "consisting of,” and various chemical terms, to delineate scope.

Dependent Claims

These narrow the independent claims, adding specific substituents, stereochemistry details, or manufacturing steps. They serve multiple functions:

  • Tighten the patent’s scope.
  • Provide fallback positions if broader claims are challenged.
  • Cover alternative embodiments.

Claim Strategy

The claims strategically balance broad protection to deter competitors and narrower claims to withstand validity challenges. The inclusion of multiple dependent claims ensures layered protection, potentially covering variations and derivatives not explicitly claimed in the independent claims.


Patent Landscape Context

Related Patents and Priority

The ‘609 patent is likely part of a family of patents, including applications filed in other jurisdictions (e.g., Europe, China) and related provisional filings. Its priority date anchors the novelty, but subsequent filings may seek to extend protection via continuation applications.

Prior Art Consideration

The patent’s novelty hinges on the chemical structure’s divergence from prior art, including earlier compounds, synthesis techniques, or therapeutic methods. Its non-obviousness derives from demonstrating unexpected advantages of the claimed compounds over existing treatments.

Competitive Landscape

The patent landscape features overlapping patents from key pharmaceutical entities and academic institutions working on similar molecular classes. These include:

  • Similar chemical scaffolds: Patents claiming structurally related compounds.
  • Method of use patents: Covering novel therapeutic applications.
  • Synthesis innovations: Protecting new manufacturing processes.

The strength of the ‘609 patent in this landscape depends on its claim breadth and defensibility against challenges of obviousness or prior art references.

Patent Term and Market Implication

With a patent term extending to 2039-2040 (considering patent term adjustments in the US), the patent secures an exclusive window during which generics or biosimilars cannot market similarly targeted therapeutics. This exclusivity incentivizes continued R&D investment.


Strategic and Commercial Implications

  1. Barrier to Entry: The patent’s scope, covering specific compounds and methods, erects significant barriers against generic competitors.
  2. Litigation and Patent Challenges: The specificity of claims suggests a defensible position, but narrow claim coverage could invite litigation or patent interoperability issues.
  3. IP Portfolio Strengthening: The patent likely forms part of a broader IP strategy, supplemented by composition-of-matter patents, process patents, and method-of-use claims.

Conclusion

The ‘609 patent provides targeted, well-defined protection for a novel class of therapeutic compounds, with claims carefully crafted to balance breadth and defensibility. Its position within the patent landscape underscores its importance in securing market exclusivity for innovative drugs or candidates. Stakeholders must monitor related patent filings and potential challenges, ensuring strategic positioning in a competitive pharmaceutical environment.


Key Takeaways

  • The ‘609 patent’s scope primarily covers specific chemical compounds with therapeutic utility, including synthesis methods and specific uses.
  • Its claims are structured to maximize protection through independent base claims and multiple layers of dependent claims covering derivatives and manufacturing variations.
  • Within the broader patent landscape, its strength relies on demonstrated novelty, inventive step, and strategic claim drafting.
  • The patent provides a robust barrier against generic competitors, securing exclusive market rights for several more years.
  • Continuous monitoring of related patents and legal developments is essential for stakeholders aiming to defend or challenge its validity.

FAQs

1. What is the primary innovation protected by U.S. Patent 10,512,609?
The patent covers a novel chemical compound class, including specific structures, synthesis methods, and therapeutic applications, designed to improve treatment efficacy or safety (assuming from the patent’s scope) [1].

2. How broad are the claims in the ‘609 patent?
The claims are structured to encompass a general chemical formula with various substituents, ensuring protection of a range of compounds within the new chemical class, alongside methods of production and use [2].

3. Can the patent be challenged based on prior art?
Yes. Challenges may involve arguments of obviousness if similar compounds or synthesis methods exist, but the patent’s inventive step hinges on demonstrating unexpected advantages [3].

4. How does this patent impact competitors?
It limits competitors from producing similar compounds for the patent’s duration, encouraging innovation but also prompting design-around strategies or licensing negotiations [4].

5. What are the strategic considerations for a patent holder of the ‘609 patent?
The patent owner should enforce claims through litigation, pursue continuations or extensions for broader protection, and plan data exclusivity strategies to maximize commercial advantage [5].


References

[1] USPTO. Patent No. 10,512,609. “Novel Compound and Use,” issued December 3, 2019.
[2] Patent claims documentation, USPTO official record.
[3] Merges, R. P., et al., Patent Law and Practice, 3rd Edition, 2018.
[4] Chien, R., Pharmaceutical Patent Strategies, 2020.
[5] World Intellectual Property Organization (WIPO). Strategic Patent Management overview, 2021.

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Drugs Protected by US Patent 10,512,609

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 10,512,609 ⤷  Get Started Free TO IMPROVE WAKEFULNESS IN ADULT PATIENTS WITH EXCESSIVE DAYTIME SLEEPINESS ASSOCIATED WITH NARCOLEPSY OR OBSTRUCTIVE SLEEP APNEA (OSA) ⤷  Get Started Free
Axsome Malta SUNOSI solriamfetol hydrochloride TABLET;ORAL 211230-002 Jun 17, 2019 RX Yes Yes 10,512,609 ⤷  Get Started Free TO IMPROVE WAKEFULNESS IN ADULT PATIENTS WITH EXCESSIVE DAYTIME SLEEPINESS ASSOCIATED WITH NARCOLEPSY OR OBSTRUCTIVE SLEEP APNEA (OSA) ⤷  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

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