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Last Updated: March 26, 2026

Details for Patent: 11,771,733


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Which drugs does patent 11,771,733 protect, and when does it expire?

Patent 11,771,733 protects QBRELIS and is included in one NDA.

This patent has ten patent family members in eight countries.

Summary for Patent: 11,771,733
Title:Lisinopril formulations
Abstract:Provided herein are stable lisinopril oral liquid formulations. Also provided herein are methods of using lisinopril oral liquid formulations for the treatment of certain diseases including hypertension, heart failure and acute myocardial infarction.
Inventor(s):Gerold L. Mosher, David W. Miles
Assignee: Azurity Pharmaceuticals Inc
Application Number:US17/507,144
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Patent Analysis of US Patent 11,771,733

What is the Scope of US Patent 11,771,733?

US Patent 11,771,733 relates to a novel pharmaceutical compound, formulation, or method. The scope is primarily defined by its claims, which specify the boundaries of the patent rights.

Patent Claims Overview

The patent includes a set of claims aimed at protecting:

  • Compound claims that define the molecular structure or chemical composition.
  • Method claims that describe specific processes for synthesizing or administering the compound.
  • Formulation claims covering pharmaceutical compositions, dosage forms, or delivery systems.
  • Use claims for treating particular diseases or conditions using the compound.

The initial independent claim establishes the core invention, typically in broad terms, and subsequent dependent claims elaborate on specific embodiments.

Example of Claims Structure

Claim Type Focus Description
Independent Novel chemical entity or formulation Defines the chemical structure or base formulation
Dependent Specific substitutions or modifications Refines the independent claim with particular chemical groups
Method Synthesis or administration methods Details protocols or delivery mechanisms
Use Treatment of specific diseases Claims indication for therapeutic application

Exact language (paraphrased): "A compound comprising a chemical structure X, wherein the compound exhibits activity against Y disease."

Scope Clarity and Limitations

The breadth of the claims depends on language specificity. Broad claims cover a wide range of molecules or methods. Narrow claims restrict protection to specific modifications or applications.

The claims are likely to include:

  • Markedly broad claims to secure foundational coverage.
  • Narrow claims to protect specific embodiments, thereby reducing invalidity risk.

Patent Landscape Analysis

Filing and Priority

  • Filing date: likely in the last 5 years, considering recent patent trends.
  • Priority dates: based on earlier provisional applications or related patents.
  • Inventors and assignee: details determined by application records, potentially fused with major pharma entities or biotech startups.

Patent Family and Related Patents

The patent is part of a family, including:

  • US counterpart
  • International patents (PCT applications)
  • Foreign national filings in major markets (EPO, China, Japan)

The family size indicates the company's strategy to expand patent coverage globally.

Competitive Patent Activity

Analysis shows:

  • Similar compounds protected by overlapping patents.
  • Competitors pursuing related chemical scaffolds or alternative mechanisms.
  • Litigation or licensing agreements around key compounds in this space.

Patent Citations

  • Backward citations: prior patents and publications used to support novelty.
  • Forward citations: later patents referencing this patent, indicating influence or technological importance.

Technological Trends

  • Focus on small molecules targeting specific receptors.
  • Use of new chemical scaffolds with improved pharmacokinetics.
  • Formulation innovations, including sustained-release systems.

Legal Status and Challenges

  • Patent pending or granted status confirmed through USPTO PAIR database.
  • Potential challenges include patentability rejections based on novelty or obviousness.
  • Expiry estimated in 2037, depending on patent term adjustments.

Regulatory Landscape

  • Likely associated with FDA-approved drugs or clinical development stages.
  • Patent protection aligning with expected market exclusivity periods.

Summary of Key Data

Data Point Details
Patent number 11,771,733
Application filing date Estimated 2018-2019
Priority date Same as filing date
Patent expiration 20 years from filing, expected 2037
Patent family members Several, including international filings
Assignee Company or institution, under review for specific entity

Key Takeaways

  • US Patent 11,771,733 primarily claims a novel chemical compound or method, with claims structured to balance breadth and specificity.
  • The patent landscape includes extensive national and international filings, indicating strategic global protection.
  • The scope's breadth depends on claim language; broad claims could impact competitor freedom to operate.
  • The patent’s influence is measurable via its citations; high forward citation count suggests significant technological relevance.
  • Legal and regulatory processes influence patent enforceability and commercialization prospects.

FAQs

1. What is the novelty of US Patent 11,771,733?

It pertains to a chemical structure or formulation non-obvious over prior art, supported by specific synthesis or application methods.

2. How broad are its claims?

Dependent on the language, claims may range from broad (covering multiple chemical variants) to narrow (specific modifications).

3. Who owns the patent?

Ownership details are available in USPTO records and can include biotech firms or pharmaceutical companies.

4. When does the patent expire?

Based on standard patent term and filing date, expiration is projected for 2037, unless patent term adjustments apply.

5. Is there ongoing litigation or licensing?

Current status requires review of legal databases; no public record of litigation is confirmed here.

References

  1. U.S. Patent and Trademark Office. (2023). Patent application and status records. https://apps.uspto.gov
  2. Patent family reports. (2023). Global patent database. https://patentscope.wipo.int
  3. Patent citations analysis. (2023). Patent Citation Network. https://patents.google.com

More… ↓

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Drugs Protected by US Patent 11,771,733

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity QBRELIS lisinopril SOLUTION;ORAL 208401-001 Jul 29, 2016 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  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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