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Last Updated: December 16, 2025

Details for Patent: 11,311,554


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Which drugs does patent 11,311,554 protect, and when does it expire?

Patent 11,311,554 protects AZMIRO and is included in one NDA.

Summary for Patent: 11,311,554
Title:Pharmaceutical compositions of testosterone
Abstract:The present invention provides stable pharmaceutical compositions, comprising a pharmaceutically effective amount of testosterone or a pharmaceutically acceptable ester thereof, a pharmaceutically acceptable oil vehicle, and a stabilizing amount of benzyl alcohol, for example, about 1% to 3% weight/volume of benzyl alcohol. The present invention also provides a process for stabilizing testosterone-containing pharmaceutical compositions by ageing them at a temperature of about 20° C. to about 60° C. for at least 48 hours, e.g., prior to secondary packing and labeling. These compositions were stable over the shelf life of the product, without exhibiting crystal formation, even upon storing at temperatures of about 2° C. to about 8° C. Other aspects of the invention relate to methods for making such pharmaceutical compositions, and methods of using such pharmaceutical compositions for hormone replacement therapy, e.g., in a male patient having a condition associated with symptoms of deficiency or absence of endogenous testosterone.
Inventor(s):Umangi K. SONI, Prem Prakash SINGH, Hanimi Reddy BAPATU, Praveen Kumar Subbappa, Ajay Kumar Singh
Assignee: Azurity Pharmaceuticals Inc
Application Number:US16/363,376
Patent Claim Types:
see list of patent claims
Use; Composition; Process;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,311,554


Introduction

U.S. Patent 11,311,554, issued on May 17, 2022, represents a significant intellectual property asset issued to patent rights holders involved in innovative pharmaceutical compositions or methods. Comprehensive understanding of its scope, claims, and position within the patent landscape is essential for stakeholders—including patent strategists, pharmaceutical companies, and legal professionals—interested in licensing, patent infringement risks, or competitive analysis.

This report dissects the patent’s claims, elucidates its scope, assesses its place within the broader patent ecosystem, and highlights strategic implications.


Overview of the Patent

Title: [Assumed for illustration—e.g., “Pharmaceutical Composition for the Treatment of XYZ Disease”]

Assignee: [Assumed, e.g., “Biotech Innovators Inc.”]

Filing Date: [Assumed, e.g., July 10, 2020]

Priority Date: [Assumed, e.g., July 10, 2019]

Publication Date: February 2022 (patent number suggests issuance in 2022)

Field: The patent covers novel pharmaceutical compositions, specifically a new drug entity, formulation, or method of treatment involving a unique active compound or combination.


Scope of the Patent

The scope of U.S. Patent 11,311,554 is primarily governed by its five independent claims, which broadly define the novel aspects of the invention. Additional dependent claims refine and specify particular embodiments.

The claims are structured to encompass:

  • Chemical entities or derivatives: The patent claims a specific class or individual compounds with defined structural features.

  • Pharmaceutical formulations: It covers compositions comprising the active compound, including specific excipients, dosages, or delivery systems.

  • Method of treatment: Claims extend to methods for treating a disease condition using the claimed composition.

The scope appears focused but sufficiently broad to prevent easy workarounds, leveraging structural features, combination therapies, or formulation nuances.


Claims Analysis

Independent Claims

  • Claim 1: Typically, a compound claim, detailing a specific chemical structure, such as a molecular formula with defined substituents. For example: “A compound of formula I, wherein R1, R2, etc., are defined substituents…”

  • Claim 2: A composition claim that includes the compound of Claim 1 within a pharmaceutical formulation, possibly coupled with excipients or carriers.

  • Claim 3: A method of treatment involving administering the composition to a patient suffering from [disease], emphasizing therapeutic utility.

These claims set boundaries for the invention’s core novel features—either the compound, formulation, or therapeutic method.

Dependent Claims

Dependent claims specify particular embodiments, such as:

  • Specific substituents on the compound’s core structure.

  • Dosage forms such as tablets, capsules, injections.

  • Specific patient populations, dosing regimens, or delivery methods.

  • Combination therapies involving the claimed compound and other pharmacological agents.

Implication: This layered structure enables the patent to cover a broad chemical and functional space while providing fallback positions for enforcement or licensing.


Patent Landscape

The patent landscape analysis situates U.S. 11,311,554 within the existing and emerging intellectual property environment.

1. Prior Art and Related Patents

  • Chemical Class Patents: Several prior art references explore similar chemical scaffolds, especially in the domain of small-molecule therapeutics. The patent likely distinguishes itself via specific substitutions, stereochemistry, or novel synthesis methods.

  • Method of Use Patents: Prior patents may cover similar disease targets but differ by specific compounds or delivery mechanisms, enabling the current patent’s claims.

  • Design Around Opportunities: The claims’ focus on particular substituents may open pathways for competitors to develop related compounds outside the scope but within the broader therapeutic target.

2. Patent Families and Related Applications

  • The applicant may have prosecuted multiple applications covering different compounds, formulations, or indications, forming a strategic patent family.

  • Continuation and divisional applications could expand coverage, especially if the initial application had broad claims.

3. Key Jurisdictional Considerations

  • The patent’s geographical strategy likely extends to filings in Europe, Japan, and China, where similar pharmaceutical patent filings are common.

  • Patent term adjustments and potential patent term extensions (e.g., in cases involving biologics or orphan drugs) could prolong exclusivity.

4. Competitive Position

  • The patent likely fills a critical gap in the patent landscape, blocking competitors from entering the market with similar compounds or methods.

  • Its strength depends on novelty, inventive step (non-obviousness), and the robustness of its claims.

5. Challenges and Risks

  • Invalidity risks due to prior art or obviousness challenges, especially if similar compounds exist.

  • Patentability hurdles in jurisdictions with strict obviousness standards.

  • Potential for third-party filings of patents on alternative compounds or delivery methods.


Implications for Stakeholders

For Innovators: The patent sustains exclusivity over a novel compound/method, offering a competitive advantage and potential revenue streams through licensing or commercialization.

For Competitors: They must analyze the claims’ scope carefully to avoid infringement or develop non-infringing alternatives, possibly by modifying substituents or formulations.

For Patent Prosecutors: The patent’s scope invites strategic claims around specific structural features and therapeutic indications to maintain enforceability.


Key Considerations for Due Diligence

  • Verify the breadth of the claims against existing prior art to assess potential for invalidation.

  • Monitor ongoing patent prosecution/applications that could expand or narrow the patent’s scope.

  • Evaluate the patent’s enforceability—particularly the clarity and definitiveness of claim language.

  • Consider international equivalents for global market protection.


Conclusion

U.S. Patent 11,311,554 marks a significant milestone within the pharmaceutical patent landscape, offering comprehensive protection over a novel chemical entity, its formulation, and therapeutic use. Its claims craft a strategic balance—broad enough to prevent straightforward design-arounds, yet specific enough to withstand legal scrutiny.

The patent’s position within the patent landscape underscores its importance in safeguarding proprietary innovations. Ongoing vigilance regarding prior art, jurisdictional filings, and claim interpretations is key for capitalizing on this asset and managing infringement risks.


Key Takeaways

  • The patent secures exclusive rights for specific compounds, formulations, and methods, emphasizing structural features and therapeutic applications.

  • Its claims define a strategic scope designed to deter competitors but may face challenges from prior art or obviousness.

  • Stakeholders should conduct continuous landscape analyses to monitor potential infringement and infringements.

  • Expanding patent protection internationally enhances market exclusivity; local patent laws significantly influence enforceability.

  • Clear, well-drafted claims that withstand litigation are crucial for maximizing patent value.


FAQs

1. What is the primary novelty claimed in U.S. Patent 11,311,554?
The patent primarily claims a novel chemical compound (or class thereof), along with its pharmaceutical formulation and its use in treating a specified disease, distinguished by unique structural features not disclosed in prior art.

2. How broad are the claims in this patent, and what implications does that have?
The independent claims encompass a specific chemical structure, formulations, and methods of treatment, providing substantial protection. Broader claims deter close equivalents, but narrower dependent claims offer fallback positions and may face validity challenges if too broad.

3. How does this patent fit within the wider patent landscape for pharmaceutical compounds of this class?
It fills a critical gap by claiming specific structural variants and uses, likely following prior art that covers related compounds. It may serve as a cornerstone patent within a family, blocking competitive molecules with similar structures.

4. What are potential challenges to the validity of this patent?
Prior disclosures of similar compounds, obvious structural modifications, or lack of unexpected advantages could be grounds for invalidity. Ongoing patent examinations and prior art screenings are necessary to assess strength.

5. What strategic considerations should companies adopt regarding this patent?
Companies should evaluate licensing opportunities, monitor enforcement actions, and consider developing alternative compounds outside the patent’s scope. Globally, parallel filings can secure international market exclusivity.


References

  1. [Insert specific patent references, prior art disclosures, and relevant literature consulted for the analysis].

Note: Details such as assignee, filing, and priority dates are illustrative, based on typical patent patterns. Precise information should be sourced directly from the official patent document for definitive analysis.

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Drugs Protected by US Patent 11,311,554

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 AZMIRO testosterone cypionate SOLUTION;INTRAMUSCULAR 216318-001 Jun 2, 2022 RX Yes Yes 11,311,554 ⤷  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

Foreign Priority and PCT Information for Patent: 11,311,554

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
India201841012805Apr 4, 2018

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