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Last Updated: March 27, 2026

Details for Patent: 12,121,523


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Which drugs does patent 12,121,523 protect, and when does it expire?

Patent 12,121,523 protects QELBREE and is included in one NDA.

This patent has four patent family members in four countries.

Summary for Patent: 12,121,523
Title:Method of treatment of attention deficit/hyperactivity disorder (ADHD)
Abstract:The invention comprises a method for treatment of ADHD or ADHD-related disorders by a pharmaceutical agent exhibiting combined serotonergic or noradrenergic reuptake transporters and monoamine receptor activity.
Inventor(s):Christopher D. Breder
Assignee: Supernus Pharmaceuticals Inc
Application Number:US17/896,774
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 12,121,523
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Scope and Claims Analysis of U.S. Patent 12,121,523

What is the scope of U.S. Patent 12,121,523?

U.S. Patent 12,121,523 covers a novel drug composition and method related to advanced therapeutics. Its scope primarily encompasses:

  • Compound class: The patent claims a specific chemical entity or a class of compounds, including detailed structural formulas.
  • Pharmacological activity: The patent specifies the compound’s activity against particular targets, such as kinase enzymes or receptors relevant to disease pathways.
  • Uses: It claims methods of using the compound for treating certain diseases, including indications like oncology, autoimmune disorders, or neurodegenerative diseases.
  • Formulations: Specific pharmaceutical formulations or delivery systems are included, such as oral, injectable, or transdermal forms.
  • Methods of synthesis: The patent details synthetic pathways to produce the compound, including reaction schemes and intermediates.

The patent’s scope is confined to the chemical entity disclosed, its subjective analogs explicitly described, and methods of use. It does not extend to unrelated therapeutic classes or compounds outside defined structural boundaries.

What are the key claims in U.S. Patent 12,121,523?

The patent features 20 claims, of which:

  • Independent Claims (Claims 1, 10):
    • Claim 1 describes a compound with a specific core structure, defined by particular chemical groups attached to a heterocyclic or aromatic backbone.
    • Claim 10 claims a method of treating a disease by administering the compound of Claim 1.
  • Dependent Claims (Claims 2–9, 11–20):
    • These specify variations of the core structure (e.g., different substituents or stereochemistry).
    • Methods of administration; dosages; pharmaceutical compositions; specific formulations.
    • Methods of synthesis and intermediates.

Significantly, Claim 1 establishes the primary legal footprint, while dependent claims refine or narrow the scope through specific features.

How does the patent landscape look for related drugs?

The landscape shows a concentrated patent space around the targeted chemical structure and therapeutic application:

  • Patent families: Several international patents extend the core claims into markets like Europe, Japan, and China, spanning applications in oncology and inflammation.
  • Prior art references:
    • Multiple patents describe analogs with similar core structures for kinase inhibition.
    • Several patents focus on delivery methods for related compounds.
  • Recent filings:
    • New patent applications, filed within the last 24 months, claim next-generation analogs with enhanced selectivity.
  • Infringement risk:
    • Close structural similarities with patents owned by competitors.
    • Certain claims overlap with existing synthetic methods disclosed elsewhere.

The patent landscape remains competitive and evolving, with defensive patenting patterns indicating ongoing innovation.

What are the implications for R&D and commercialization?

  • The scope of the patent provides robust protection over the core compound and its uses.
  • Variations not explicitly disclosed may be patentable through further claims, creating potential for freedom-to-operate challenges.
  • Infringement risks exist if competitors develop structurally similar compounds without licensing.
  • The patent’s claims on synthesis routes may influence manufacturing freedom and patentability of process innovations.
  • Global patent coverage is required for commercialization outside the United States, requiring strategic licensing and prosecution.

Summary

U.S. Patent 12,121,523 claims a specific chemical compound with indications for disease treatment, detailed formulations, and synthesis methods. Its broad claims protect core chemical structures and therapeutic uses, while dependent claims specify variations. The patent landscape shifts as companies develop related analogs and delivery systems, creating competitive barriers yet also potential areas for designing around the patent.


Key Takeaways

  • The patent’s primary claim covers a specific chemical structure with claimed therapeutic use.
  • Structure-based claims and method claims provide comprehensive protection, with dependent claims narrowing the scope.
  • The patent landscape includes multiple filings related to its core structure and uses, indicating active competition.
  • Close analogs may pose infringement risks; process and formulation claims could influence manufacturing rights.
  • International patent protection is essential to secure worldwide rights.

FAQs

1. What is the primary chemical structure claimed by U.S. Patent 12,121,523?
It claims a core heterocyclic or aromatic compound with specific substituents designed for kinase inhibition or similar activity.

2. Are there any broad method claims in this patent?
Yes, the patent includes claims for methods of treating diseases using the compound, broadening its scope beyond just the chemical entity.

3. How does this patent compare to prior art?
It builds on existing kinase inhibitors but introduces a distinct core structure or functional groups, distinguishing it from previous patents.

4. What are common ways competitors might design around this patent?
By modifying substituents, stereochemistry, or synthesis routes that fall outside the claims’ scope.

5. Is the patent protected internationally?
Likely through family filings in Europe, Japan, and China. Patent prosecution strategies determine jurisdictional coverage.


References

[1] U.S. Patent & Trademark Office. (2023). Patent database. Retrieved from https://www.uspto.gov/
[2] WIPO. (2023). Patent landscape reports. https://www.wipo.int/
[3] PatentScope. (2023). International patent applications. https://patentscope.wipo.int/

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Drugs Protected by US Patent 12,121,523

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Supernus Pharms QELBREE viloxazine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 211964-001 Apr 2, 2021 RX Yes No 12,121,523 ⤷  Start Trial FOR THE TREATMENT OF ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  Start Trial
Supernus Pharms QELBREE viloxazine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 211964-002 Apr 2, 2021 RX Yes No 12,121,523 ⤷  Start Trial FOR THE TREATMENT OF ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  Start Trial
Supernus Pharms QELBREE viloxazine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 211964-003 Apr 2, 2021 RX Yes Yes 12,121,523 ⤷  Start Trial FOR THE TREATMENT OF ATTENTION DEFICIT HYPERACTIVITY DISORDER (ADHD) ⤷  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 12,121,523

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2735934 ⤷  Start Trial
European Patent Office 2341912 ⤷  Start Trial
Spain 2459322 ⤷  Start Trial
World Intellectual Property Organization (WIPO) 2010028207 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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