Last Updated: June 25, 2026

Patent: 11,116,821


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Summary for Patent: 11,116,821
Title:Methods for treating tracheobronchomalacia
Abstract:The disclosure features methods for treating tracheobronchomalacia (TBM) in a patient having hypophosphatasia (HPP), such as an infant, by administering a soluble alkaline phosphatase (sALP) to the patient.
Inventor(s):Saal Howard M.
Assignee:Alexion Pharmaceuticals, Inc.
Application Number:US16325910
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

United States Patent 11,116,821: What the Claims Cover and How the US Landscape Shapes Enforceability

What do the claims of US 11,116,821 actually cover?

Insufficient information was provided to analyze the patent claims. The user’s message includes only: “The claims are:” with no claim text, claim set, or claim chart. Without the claim language, a complete and accurate analysis of claim scope, novelty, infringement risk, prosecution history implications, and landscape overlap cannot be produced.

Where does US 11,116,821 sit in the US patent landscape?

Insufficient information was provided to perform a complete landscape analysis. A landscape study requires, at minimum, the claim subject matter (e.g., drug compound vs. formulation vs. method), the assignee/owner, key technical terms, and the patent’s CPC/US classes. Those inputs are not included.

What enforceability conclusions can be drawn from claim structure?

No claim text is available. Enforceability analysis depends on identifying: (1) independent claim limitations, (2) whether terms are functional or tied to structural parameters, (3) whether ranges are used, (4) whether dependent claims narrow scope, (5) whether key limitations are likely to be enablement or written-description sensitive, and (6) whether claim interpretation hinges on definitions in the specification. None of that is possible without the claims.

What are the most likely design-around and invalidity vectors?

No claim content is available, so the most likely vectors cannot be determined. In practice, design-around and invalidity hinge on the claim’s distinctive elements (compound identity, substituent pattern, formulation excipients, process steps, performance metrics, or dosing regimen). Those elements are unknown here.

What are the actionable next steps for business decisions?

No actionable steps can be produced without the claim set. Landscape prioritization (freedom-to-operate, challenge strategy, licensing targets, or R&D direction) requires claim-by-claim mapping to competitors’ US filings and known prior art categories tied to the actual limitations.


Key Takeaways

  • A complete and critical analysis of US 11,116,821 cannot be produced because the claim text is missing.
  • A landscape and enforceability assessment also cannot be completed without identifying the technical subject matter of the claims.
  • No infringement, validity, design-around, or portfolio-impact conclusions can be stated without the actual claim language.

FAQs

  1. Can you analyze claim scope without the full claim text?
    No. Claim-by-claim interpretation requires the exact limitations.

  2. Can you map the landscape without knowing what the claims cover?
    No. Landscape mapping depends on the technical elements recited in the claims.

  3. Can you assess enforceability without claim structure?
    No. Enforceability analysis depends on how limitations are drafted and narrowed across dependent claims.

  4. Can you identify invalidity risks without knowing the claim elements?
    No. Invalidity vectors follow the claim’s distinguishing features.

  5. Can you provide actionable business next steps without the claims and technical scope?
    No. Decisioning requires claim-limited competitive and prior-art overlap.


References

No sources were cited because the necessary claim and patent-context inputs were not provided.

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Details for Patent 11,116,821

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Alexion Pharmaceuticals, Inc. STRENSIQ asfotase alfa Injection 125513 October 23, 2015 ⤷  Start Trial 2037-08-18
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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