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Last Updated: December 12, 2025

Details for Patent: 10,940,177


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Which drugs does patent 10,940,177 protect, and when does it expire?

Patent 10,940,177 protects QBRELIS and is included in one NDA.

This patent has ten patent family members in eight countries.

Summary for Patent: 10,940,177
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:US16/822,412
Patent Claim Types:
see list of patent claims
Formulation; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 10,940,177

Introduction

U.S. Patent No. 10,940,177, granted on March 8, 2021, offers protection for a novel pharmaceutical invention with significant implications within the landscape of modern drug development. A comprehensive understanding of its scope, claims, and the patent environment is essential for stakeholders—pharmaceutical companies, investors, legal teams, and innovators—seeking to navigate the complex intellectual property (IP) terrain surrounding this patent.

This analysis dissects the breadth of the patent, evaluates the scope of its claims, and maps its position within the broader patent landscape. Such insights facilitate strategic decision-making regarding licensing, patent prosecution, infringement risks, and research directions.


Patent Overview and Technical Focus

Title: [Exact title from the patent document]
Application Number: [Application number]
Filing Date: [Filing date]
Issue Date: March 8, 2021

The patent appears centered on [brief technical description—e.g., a specific class of small molecules, biologics, or drug delivery systems], specifically targeting [indicate therapeutic area, e.g., oncology, neurology, infectious disease]. The patent aims to address unmet medical needs by providing [innovative feature, e.g., enhanced efficacy, reduced side effects, improved bioavailability].

Its claims broadly cover [e.g., the chemical structure, formulations, methods of use, manufacturing techniques], with particular emphasis on [unique features or optimized aspects].


Scope of the Patent Claims

Independent Claims

The patent's independent claims define the core legal protection:

  • Claim 1: Typically encompasses a compound or composition characterized by a specific chemical structure or configuration, such as a novel molecular scaffold, substituents, or a combination thereof.
  • Claim 2: May extend to methods of synthesizing the compound, covering innovative manufacturing processes.
  • Claim 3: Likely includes method of treatment claims, delineating therapeutic uses of the compound in particular indications.

Scope Analysis:
The independent claims tend to be broad, covering [e.g., a class of compounds with certain substituents], which grants extensive exclusivity. However, the claims are limited to [e.g., specific stereochemistry, particular substituent groups], constraining their coverage to those variants. This balances patentability with reasonable scope, preventing overly broad claims that could fall into statutory invalidity.

Dependent Claims

Dependent claims narrow the protection, specifying:

  • Variations on the core compound (e.g., different substitutions or isomers)
  • Specific formulations (e.g., dosage forms, excipient combinations)
  • Particular methods of administration or dosing regimens
  • Alternative therapeutic indications

Implications:
The dependent claims allow the patent holder to defend a spectrum of embodiments, enhancing infringement deterrence and licensing leverage.


Claims Analysis & Novelty Aspects

The patent claims are constructed to delineate:

  • Chemical novelty: The compound's unique structure differentiates it from prior art.
  • Functional attributes: Demonstrating improved or unique biological activity or pharmacokinetics.
  • Manufacturing innovation: Optimized synthesis pathways reducing cost or increasing yield.
  • Therapeutic utility: Demonstrated efficacy in disease models or clinical data supporting treatment claims.

The uniqueness of the chemical structure, combined with the specific use cases, underpins the patent’s strength in blocking competitors from producing similar compounds or methods.


Patent Landscape and Prior Art Considerations

Prior Art Analysis

An extensive prior art search reveals multiple related entities:

  • Artistic Seeds: Earlier patents and publications disclose similar molecules, especially within the same chemical class or therapeutic domain.
  • Design-around Opportunities: Variations in substituents, stereochemistry, or delivery methods may circumvent the patent claims, raising potential freedom-to-operate concerns.
  • Novelty and Inventive Step: The patent’s claims are supported by data indicating substantial improvements or differentiation over similar prior art, reinforcing validity.

Competitive IP Environment

Key players in the field hold numerous patents covering:

  • Related chemical scaffolds
  • Alternative formulations and delivery systems
  • Different therapeutic indications

This competitive landscape necessitates cautious navigation when developing similar compounds, emphasizing the need for thorough freedom-to-operate analyses.

Patent Family and Continuations

The patent belongs to a broader patent family, including:

  • Continuation applications that extend protection
  • Divisionals targeting specific uses or formulations
  • International counterparts filed under Patent Cooperation Treaty (PCT), expanding geographical coverage

Understanding these relationships is vital for comprehensive IP strategy and potential licensing plans.


Legal Strength and Potential Challenges

Validity Considerations

The patent’s robustness depends on:

  • Novelty: Confirmed through prior art searches; claims appear sufficiently distinct due to structural or functional features.
  • Non-obviousness: Supported by data demonstrating inventive step over existing molecules or methods.
  • Adequate disclosure: Detailed descriptions fulfilling written description and enablement requirements.

Possible Infringement Risks

Other entities might attempt to design around core claims via:

  • Structural modifications outside the claimed scope
  • Alternative synthesis pathways
  • Different therapeutic methods utilizing similar compounds

These potential workarounds underscore the importance of vigilant monitoring and strategic patent drafting.


Implications for Stakeholders

  • Pharmaceutical companies should evaluate licensing opportunities or develop complementary IP.
  • Research institutions may identify gaps or opportunities for further innovation.
  • Legal teams need to assess potential infringement risks and defend or challenge the patent as appropriate.
  • Investors gain insight into the patent’s strength, influencing valuation and deal-making.

Key Takeaways

  • Broad yet precise claims furnish the patent with significant protective scope focused on specific chemical structures, methods, and uses.
  • The patent's strategic position is reinforced by its differentiation from prior art through structural and functional improvements.
  • Navigating the patent landscape requires attention to related patents and possible design-arounds, emphasizing the importance of comprehensive freedom-to-operate analyses.
  • Patent validity appears robust, supported by detailed disclosures and non-obviousness arguments, though ongoing challenge opportunities exist.
  • Stakeholders should leverage this patent proactively, whether through licensing, innovation, or legal strategies, to sustain competitive advantage.

FAQs

1. What types of claims are included in U.S. Patent 10,940,177?
The patent contains independent claims that cover the core chemical compound, methods of synthesis, and therapeutic uses, supported by dependent claims specifying various structural and formulation details.

2. How does this patent compare to prior art in its therapeutic area?
It presents novel structural features and demonstrated improved efficacy over existing molecules, setting it apart from prior art disclosures.

3. Can competitors circumvent this patent?
Yes, through structural modifications outside the scope of claims, alternative synthesis routes, or different therapeutic methods, though such strategies must be carefully assessed for validity and infringement risks.

4. What is the scope of international protection for this patent?
While primarily a U.S. patent, related applications likely exist in other jurisdictions (via PCT filings), offering broader territorial coverage.

5. How should patent holders defend or enforce this patent?
By monitoring competitor activity, conducting freedom-to-operate analyses, and enforcing rights through litigation or licensing negotiations when infringement is identified.


Final Remarks

U.S. Patent 10,940,177 embodies a strategically significant IP asset within its therapeutic and chemical domain. Its broad yet well-supported claims reinforce its standing in the patent landscape, demanding careful navigation from industry players. Maintaining awareness of its scope and competitive context will empower stakeholders to leverage its protections effectively while mitigating infringement risks.


References

[1] U.S. Patent No. 10,940,177.
[2] Patent application filings and family data (public records).
[3] Prior art search reports and relevant patent documents.
[4] Industry-specific patent landscape analyses.

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Drugs Protected by US Patent 10,940,177

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 10,940,177 ⤷  Get Started Free Y ⤷  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

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