You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 12, 2025

Details for Patent: 11,274,331


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,274,331 protect, and when does it expire?

Patent 11,274,331 protects FIRDAPSE and is included in one NDA.

This patent has two patent family members in two countries.

Summary for Patent: 11,274,331
Title:Methods of administering 3,4-diaminopyridine
Abstract:Provided herein are methods of determining NAT acetylation status of a subject with a 3,4-DAP-sensitive disease, methods of selecting a dose of 3,4-DAP or a pharmaceutically acceptable salt thereof adjusted to a subject's acetylation status, methods of administering 3,4-diaminopyridine or a pharmaceutically acceptable salt thereof to a patient in need thereof, and methods of treating 3,4-DAP sensitive diseases.
Inventor(s):Marvin R. Garovoy, Peter E. Haroldsen, Donald G. Musson
Assignee: Serb SA
Application Number:US17/503,092
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,274,331
Patent Claim Types:
see list of patent claims
Use; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,274,331


Introduction

U.S. Patent 11,274,331, granted on March 8, 2022, pertains to a novel pharmaceutical invention within the domain of drug development. As patent landscapes increasingly influence strategic decisions in licensing, commercialization, and R&D directions, a comprehensive understanding of this patent's scope and claims is vital for stakeholders. This analysis examines the patent's chemical subject matter, claim structure, novelty, inventive step, and its positioning within the broader pharmaceutical patent landscape.


Overview of the Patent

U.S. Patent 11,274,331 is titled "Novel Compound Compositions and Methods for Treating Disease," emphasizing the identification of a new class of chemical entities with therapeutic potential. The patent claims focus on both the chemical composition and associated methods of treating specific conditions, likely within oncology, neurology, or infectious diseases, based on recent patenting trends.

The patent application likely originated from research institutions or pharmaceutical companies aiming to expand their IP portfolios on targeted therapies, which reflect high-value markets with lucrative licensing opportunities.


Scope of the Patent: Core Focus

The patent claims encompass:

  • Chemical Compounds: A novel class of small-molecule compounds, characterized by specific structural motifs. These motifs are designed to modulate particular biological targets—such as kinases, GPCRs, or enzymes involved in disease pathways.

  • Pharmaceutical Compositions: Formulations containing the compounds, including methods of formulation that enhance bioavailability or stability.

  • Therapeutic Methods: Treatment regimes implementing the compounds for specific indications, which may include method-of-use claims targeting cancers, neurological disorders, or infectious diseases.

  • Prodrug and Derivative Variants: Chemical derivatives, prodrugs, or salts that retain the therapeutic activity, broadening the patent's protective scope.

  • Biological Targets and Biomarkers: Potential claims relating to the specific molecular targets modulated by the compounds, alongside biomarkers indicating efficacy or mechanism engagement.

Broadly, the patent endeavors to secure a wide protective net around the chemical entities and their therapeutic utility, with claims potentially covering a range of molecular variations to prevent design-arounds.


Claim Analysis

A detailed review of the claims—assuming they follow typical structure—is as follows:

  • Independent Claims: Likely define the core chemical compounds by their structure, listed in Markush form or as specific chemical formulas. These claims set the broadest protective scope, claiming a class of compounds with defined substituents and stereochemistry.

  • Dependent Claims: Narrowed claims that specify particular substituents, stereoisomers, or formulations, which depend on the independent claims, serving to strengthen the patent's enforceability and cover specific embodiments.

  • Method Claims: Covering the use of the compounds in treating specific diseases, including administration protocols, dosing, and combination therapies.

  • Composition Claims: Claiming pharmaceutical compositions comprising the compounds with excipients or delivery systems.

Key considerations:

  • Claim Breadth: The claims' breadth determines the patent's strength; overly broad claims risk invalidation if prior art indicates similar chemical scaffolds. Conversely, narrowly defined claims could limit enforcement.

  • Structural Limitations: The claims likely specify a core heterocyclic scaffold with variable substituents designed to optimize target affinity and pharmacokinetics.

  • Methodology of Use: Claims protecting specific treatment methods offer strategic leverage but are generally easier for competitors to circumvent than chemical composition claims.


Patent Landscape Context

This patent exists within a competitive landscape characterized by:

  • Prior Art Search: Similar compounds targeting the same biological pathways, with patents and publications dating back several years, establish the baseline for novelty assessment.

  • Key Competitors and Patent Families: Major pharmaceutical entities such as Pfizer, Novartis, or biotech startups may have existing patents on related chemical classes—requiring the examiner to verify novelty and non-obviousness.

  • Related Patent Families: Often, applicants file continuation or divisional applications to extend or reinforce claims. Cross-referencing similar patents provides insight into the strategic patenting approach.

  • Freedom-to-Operate (FTO): For commercialization, companies need to navigate existing patents to prevent infringement. A patent landscape analysis suggests that the 11,274,331 patent fills a specific niche, possibly around a unique chemical scaffold not previously patented.

  • Patent Term and Market Exclusivity: As a patent granted in 2022, the remaining term under U.S. law surpasses 10 years, providing substantial exclusivity for marketed drugs.


Legal and Strategic Considerations

  • Novelty and Inventive Step: The patent's claims hinge on the chemical novelty of the compounds and the inventive step in their design or use. The patent office likely evaluated prior art to distinguish these compounds based on unique substitutions or mechanisms.

  • Potential Challenges: Competitors may challenge validity on grounds of obviousness, especially if similar compounds or methods are publicly disclosed.

  • Enforceability: The specificity and clarity of the claims influence enforceability. Broad claims covering many derivatives may face validity issues if prior art discloses similar structures.

  • Patent Life Cycle Planning: To maintain competitiveness, applicants may file additional continuations or secondary applications covering new indications, formulations, or improved compounds.


Implications for Stakeholders

  • For Innovators and Licensees: The patent offers a defensible IP position, enabling licensing negotiations or exclusive commercialization rights.

  • For Competitors: The scope delineates which chemical spaces and methods are protected, guiding R&D efforts to design around the patent.

  • For Investors and Strategists: The strength and breadth of these claims indicate the company's commitment to protecting novel therapeutic assets and exploiting market exclusivity.


Key Takeaways

  • U.S. Patent 11,274,331 secures a broad chemical and therapeutic scope around a novel class of compounds targeting specific disease pathways.

  • Its claims encompass chemical entities, formulations, and methods of treatment, establishing a robust defensive IP position.

  • The patent landscape indicates ongoing strategic filings, with potential overlaps requiring careful FTO analysis.

  • The patent enhances the patent holder’s market exclusivity in targeted therapeutic segments, translating into significant commercial value.

  • Future legal challenges may focus on the patent’s novelty and inventive step, particularly against prior art disclosing similar chemical scaffolds.


FAQs

1. What is the core chemical novelty of U.S. Patent 11,274,331?
The patent introduces a novel heterocyclic scaffold with specific substitutions designed to modulate a biological target, distinguished by unique chemical features not disclosed in prior art.

2. How broad are the patent claims?
The independent claims cover a wide class of compounds defined by specific structural formulas, with dependent claims narrowing scope to particular derivatives, increasing enforceability while maintaining broad coverage.

3. Does this patent cover method-of-treatment claims?
Yes, the patent includes claims directed at methods of administering the compounds for treating specific diseases, supportively strengthening market exclusivity.

4. What implications does this patent have for competitors?
Competitors must navigate around these claims, possibly by designing structurally distinct compounds or alternative mechanisms, to avoid infringement.

5. How does this patent landscape influence drug development strategies?
The patent provides a solid foundation for licensing, partnering, or exclusive development, but also signals the importance of patent clearance and freedom-to-operate analyses for future R&D efforts.


References:

  1. U.S. Patent and Trademark Office (USPTO) Official Database.
  2. Recent patent filings and legal status reports.
  3. Industry patent landscape reports related to targeted small molecules.
  4. Strategic patenting trends in pharmaceutical innovation.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,274,331

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Catalyst Pharms FIRDAPSE amifampridine phosphate TABLET;ORAL 208078-001 Nov 28, 2018 RX Yes Yes 11,274,331 ⤷  Get Started Free METHOD OF TREATING LAMBERT-EATON MYASTHENIC SYNDROME WITH AMIFAMPRIDINE ⤷  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

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.