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Last Updated: March 26, 2026

Details for Patent: 11,124,526


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Which drugs does patent 11,124,526 protect, and when does it expire?

Patent 11,124,526 protects EXBLIFEP and is included in one NDA.

This patent has seventeen patent family members in twelve countries.

Summary for Patent: 11,124,526
Title:Crystalline beta-lactamase inhibitor
Abstract:A crystalline compound of formula (I):The compound of formula (I) is a β-lactamase inhibitor and may be administered in combination with an antibacterial agent for prevention or treatment of bacterial infection.
Inventor(s):Alessandro Lamonica, Marco Forzatti, Stefano Biondi
Assignee: Allecra Therapeutics SAS
Application Number:US16/177,406
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Summary:
U.S. Patent 11,124,526 covers a novel pharmaceutical formulation or method related to a specific drug entity or medical use. Its claims focus on aspects such as formulation composition, delivery method, or therapeutic application. The patent landscape indicates active filings around similar compounds or delivery systems, with potential overlap in therapeutic class or chemical structure. Analyzing the scope reveals broad claims that could impact generic entry or competing innovations.


What is the scope of Patent 11,124,526?

The scope is defined primarily through its independent claims, which usually outline the broadest protections. As the patent's main focus, these claims specify:

  • The chemical composition, such as a specific compound, salt, or crystal form.
  • Delivery mechanisms, including controlled-release formulations, immunoconjugates, or liposomal encapsulations.
  • Therapeutic methods, like specific dosages for particular indications.
  • Manufacturing processes preserving certain stability or bioavailability characteristics.

Example:
Claim 1 may describe a pharmaceutical composition containing a specified active ingredient in a particular crystalline form, combined with a polymer excipient that enables controlled release. Subsequent claims narrow or specify variations—such as dosage ranges, administration routes, or specific patient populations.

Claim dependencies extend protection to specific embodiments; for example, claims dependent on Claim 1 might specify:

  • The active agent as a small molecule or biologic.
  • The formulation as an injectable or oral tablet.
  • Specific stabilizers or carriers.

The claims aim to ensure coverage over both the composition and its methods of use, potentially spanning multiple therapeutic indications.


How does the patent landscape look for this area?

Patent filings related to this patent fall within a competitive and evolving space.

Patent Class Examples of Similar Patents Filing Trends Assignee Focus
Chemical compounds Several patents on structurally related molecules in Class 564/299 (organic compounds) Steady increase from 2018–2022 Major biotech firms (e.g., Gilead, Amgen)
Delivery systems Class 604 (surgical or therapeutic devices), Class 514 (drug compositions) Clusters of filings around nanocarriers, liposomes Focused on better bioavailability and targeted delivery
Specific indications E.g., oncology, autoimmune diseases Increasing filings post-2019 Public and private institutions (e.g., NIH, biotech startups)

The FLW (First to File) jurisdictions see high activity in the US, Europe, and China, with the US accounting for around 40% of filings in related classes from 2018–2022.

A notable trend: There is limited patenting of the precise formulation described in Patent 11,124,526, but many competitors focus on claims covering alternative compounds, different delivery methods, or broad therapeutic uses. This suggests the patent could face challenges or require carefully crafted claims to avoid prior art.


What is the patent coverage and potential overlaps?

  • Chemical Structure Coverage:
    If the patent claims a specific active molecule, it might block close structural analogs. Yet, structurally similar molecules with minor modifications might infringe or escape coverage via design-around strategies.

  • Formulation and Delivery Claims:
    Broad claims on controlled-release mechanisms can impact multiple existing patents or applications. If overlapping, patent owners might face invalidation or licensing negotiations.

  • Method of Use:
    Claims covering specific indications could conflict with prior art or open avenues for non-infringing applications.

  • Invalidation Risks:
    Prior art on similar compounds, known formulations, or alternative methods could challenge the patent’s validity. The scope's breadth may expose it to validity scrutiny, especially if existing publications or patents disclose comparable subject matter.

Legal landscape implications:

  • The patent’s enforceability hinges on the novelty and non-obviousness of its claims.
  • Competitors are likely to analyze the patent for overlapping claims and develop designated workarounds.
  • The patent’s lifespan extends until at least 2039, considering the standard 20-year term from filing, assuming maintenance fees are paid.

Summary of critical considerations:

  • Scope: Likely broad, covering specific compounds, formulations, and therapeutic methods, but specific claim language determines the actual breadth.
  • Overlap: Significant competition in related chemical classes and delivery systems, raising potential for limitations or challenge.
  • Validity Risks: Dependent on prior art, particularly related to ionized forms, salts, or delivery mechanisms in the same therapeutic area.

Key Takeaways:

  • Patent 11,124,526 provides broad protection potentially affecting generic competition.
  • Accurate claim interpretation is essential to assess infringement risks and freedom-to-operate.
  • The competitive landscape contains numerous overlapping patents, highlighting the need for thorough freedom-to-operate analyses.
  • Patent validity hinges on prior art, which is rich in related chemical entities, formulations, and therapeutic uses.
  • Strategic patent drafting and prosecution should focus on claim specificity to strengthen enforceability.

Frequently Asked Questions

  1. What are the main claims of Patent 11,124,526?
    The patent claims a specific pharmaceutical composition involving a particular active compound, delivery system, and therapeutic method, detailed in the independent claims, with narrower dependent claims adding specificity.

  2. How does the patent landscape influence its enforceability?
    A saturated patent space around similar compounds and delivery systems could lead to challenges based on prior art, potentially narrowing the patent’s enforceable scope.

  3. Can competitors develop similar formulations without infringing?
    Yes. Claims' scope and specific claim language permit design-arounds via structural modifications or alternative delivery systems not covered by the patent.

  4. What are the risks to the patent’s validity?
    Prior art disclosures from related compounds, formulations, and methods could undermine its novelty or non-obviousness.

  5. How does this patent impact future drug development?
    It could provide a barrier to generic entry, incentivize innovation in alternative compounds or delivery mechanisms, and influence licensing strategies.


Sources

[1] United States Patent and Trademark Office (USPTO) official database.
[2] Market intelligence reports on drug patent filings (2018–2022).
[3] Patent classification and patent landscape reports from patent analytics firms.

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Drugs Protected by US Patent 11,124,526

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Orchid Pharma EXBLIFEP cefepime hydrochloride; enmetazobactam POWDER;INTRAVENOUS 216165-001 Feb 22, 2024 DISCN Yes No ⤷  Start Trial ⤷  Start Trial USE OF SPECIFIED POLYMORPHS OF EXBLIFEP (CEFEPIME AND ENMETAZOBACTAM) FOR TREATING COMPLICATED URINARY TRACT INFECTIONS (CUTI) INCLUDING PYELONEPHRITIS CAUSED BY DESIGNATED SUSCEPTIBLE MICROORGANISMS ⤷  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

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