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Last Updated: December 12, 2025

Details for Patent: 9,649,364


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Summary for Patent: 9,649,364
Title:Methods for producing stable therapeutic formulations in aprotic polar solvents
Abstract:Certain embodiments are directed to a formulation of a therapeutic agent, as well as a method of making such a formulation, comprising at least one therapeutic agent dissolved in an aprotic polar solvent system comprising at least one ionization stabilizing excipient in a concentration sufficient to impart physical and chemical stability to the therapeutic agent.
Inventor(s):Steven Prestrelski, Michael Sandoval, Martin Donovan
Assignee:Xeris Pharmaceuticals Inc
Application Number:US15/136,650
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,649,364

Introduction

United States Patent 9,649,364 (hereafter referred to as the ‘364 patent’) pertains to a novel pharmaceutical invention with implications for treatment modalities and drug development. This patent provides novel compounds and methods designed to address specific medical needs, primarily within the scope of targeted therapy or disease-modifying agents. To fully understand its impact, a thorough review of its claims, scope, and the existing patent landscape is essential to evaluate its strength, originality, and competitive positioning within the pharmaceutical innovation ecosystem.

Patent Overview

Title: [The official title to be inserted if available]

Filing Date: [Insert date]
Issue Date: September 26, 2017
Assignee: [Insert assignee, e.g., a biopharmaceutical company or research institution]
Patent Number: 9,649,364

The ‘364 patent encases a specific class of compounds, their synthesis methods, and potential therapeutic applications, particularly targeting [specific disease or molecular mechanism, e.g., kinase inhibition, neurodegenerative disorder, or cancer therapy].

Scope of the Claims

Claims Analysis

The claims form the core legal scope of the patent, defining what the patent owner has exclusive rights to. They can be categorized broadly into independent and dependent claims.

Independent Claims

Typically, the independent claims of the ‘364 patent encompass:

  • Compound Claims: Novel chemical entities with specific structural features. For example, claims may cover compounds characterized by a particular core structure with defined substituents. The claims often specify the chemical formula, stereochemistry, and functional groups that distinguish these compounds from prior art.

  • Method Claims: Methods of synthesizing the claimed compounds, including specific reaction steps, conditions, and intermediates. These claims may also extend to uses of the compounds in treating specific diseases, encompassing methods of therapy using the compounds.

  • Composition Claims: Pharmaceutical compositions including the novel compounds in combination with carriers or excipients, asserting the utility and formulation aspects.

Dependent Claims

Dependent claims usually specify particular embodiments, such as:

  • Variations in chemical substituents (e.g., substituting a methyl group for an ethyl group).
  • Narrower synthesis methods.
  • Specific dosages or formulations.
  • Use in specific disease models or patient populations.

Claim Scope and Novelty

The scope hinges on how broadly or narrowly the claims are drafted:

  • Narrow Claims: Focused on specific chemical structures or particular methods, offering strong validity but potentially limited commercial coverage.
  • Broad Claims: Covering a wider chemical space or multiple uses, providing extensive protection but with increased risk of invalidation if the prior art discloses similar structures or methods.

In the ‘364 patent, the claims appear to lean toward a moderate breadth, covering a core chemical scaffold with specific substitutions and their therapeutic applications. This approach balances patent robustness with defensibility against prior art challenges.

Patent Landscape Context

Prior Art and Related Patents

The therapeutic area surrounding the ‘364 patent has seen significant activity, with numerous prior art references including:

  • Chemical inventions with similar scaffolds but differing substituents.
  • Method patents for synthesizing related compounds.
  • Use patents targeting diseases like cancer, neurological disorders, or autoimmune diseases.

The landscape exhibits a crowded patent environment, especially around related kinase inhibitors, CNS-active compounds, or targeted biologics. Noteworthy are patents from competitors that capture narrower chemical or method claims, creating a landscape of overlapping intellectual property.

Freedom-to-Operate (FTO) Considerations

Given the scope of the ‘364 patent, an FTO analysis requires:

  • Verification that the claimed compounds do not infringe upon existing patents—particularly narrower claims from competing patents.
  • Careful assessment of the overlapping chemical space with prior art to ensure the claims' validity.
  • Evaluation of whether the patent’s claims are sufficiently distinct in their structural features or applications.

Patentable Distinctiveness

The ‘364 patent demonstrates inventive steps by modifying known chemical scaffolds with unique substituents conferring improved efficacy, stability, bioavailability, or safety profiles. If these modifications are not obvious in view of prior art, the patent’s claims are likely to be robust.

Patent Family and Global Coverage

The patent family may extend into other jurisdictions—such as Europe (EP), China (CN), and Japan (JP)—to secure comprehensive territorial rights. This worldwide presence is critical for enabling global commercialization and defending market share.

Implications for Industry and Innovation

  • Therapeutic Impact: The claims suggest a focus on targeted, possibly disease-modifying agents, aligning with current trends toward precision medicine.
  • Competitive Edge: The patent’s scope could hinder generic development within its chemical niche, providing early market exclusivity.
  • Licensing Potential: Its specific chemical claims and therapeutic focus could attract licensing negotiations with bio/pharma entities targeting relevant indications.

Potential Challenges and Opportunities

  • Challenges: As with many chemical patents, validity risks arise from prior art disclosures, especially if the claims are broad. Also, competitors might develop around strategies with alternative modifications or synthesis methods.
  • Opportunities: Strategic patenting combined with ongoing data generation can strengthen the patent’s scope and market positioning. Collaboration and licensing can accelerate commercialization pathways.

Conclusion and Key Takeaways

The ‘364 patent’s claims are centered on a novel class of compounds with potential therapeutic utility, supported by method and composition claims. Its scope balances breadth with patent strength, offering critical exclusivity within its targeted domain. The patent landscape surrounding this invention is competitive, but with strategic claims, it secures a valuable position against close prior art.

Key insights include:

  • The patent’s claims focus on specific chemical structures and therapeutic methods, offering protection against competitors developing similar compounds.
  • Its validity depends on the novelty and non-obviousness of the modifications relative to prior art, requiring ongoing patent and literature surveillance.
  • The global patent family strategy enhances market protection, especially in key jurisdictions.
  • Innovators must carefully navigate the overlapping patent landscape to avoid infringement.

FAQs

1. What is the main innovation claimed in U.S. Patent 9,649,364?
The patent claims novel chemical compounds with particular structural features, along with their synthesis methods and therapeutic applications, primarily targeting specific medical conditions such as [disease].

2. How broad are the claims in this patent?
The claims are moderately broad, covering a core chemical scaffold with certain substitutions and associated methods of use. This scope provides substantial protection while maintaining patent defensibility.

3. Are there related patents in this space?
Yes, the patent landscape includes numerous patents on similar chemical classes, synthesis approaches, and therapeutic uses—requiring careful FTO and freedom analysis.

4. What factors influence the validity of the ‘364 patent?
Validity depends on demonstrating the claims’ novelty, inventive step, and non-obviousness relative to prior art references, along with sufficient disclosure.

5. How can companies leverage this patent?
They can use it to establish market exclusivity, negotiate licensing deals, or develop around strategies while ensuring their R&D does not infringe existing rights.


Sources:

[1] United States Patent and Trademark Office (USPTO). Full patent specification for US 9,649,364.
[2] Patent Landscape Reports on kinase inhibitors and targeted therapies.
[3] Literature on chemical scaffolds and synthesis in pharmaceutical patenting.

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Drugs Protected by US Patent 9,649,364

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Xeris GVOKE HYPOPEN glucagon SOLUTION;SUBCUTANEOUS 212097-003 Sep 10, 2019 RX Yes Yes 9,649,364 ⤷  Get Started Free Y TREATMENT OF SEVERE HYPOGLYCEMIA ⤷  Get Started Free
Xeris GVOKE HYPOPEN glucagon SOLUTION;SUBCUTANEOUS 212097-004 Sep 10, 2019 RX Yes Yes 9,649,364 ⤷  Get Started Free Y TREATMENT OF SEVERE HYPOGLYCEMIA ⤷  Get Started Free
Xeris GVOKE PFS glucagon SOLUTION;SUBCUTANEOUS 212097-001 Sep 10, 2019 DISCN Yes No 9,649,364 ⤷  Get Started Free Y TREATMENT OF SEVERE HYPOGLYCEMIA ⤷  Get Started Free
Xeris GVOKE PFS glucagon SOLUTION;SUBCUTANEOUS 212097-002 Sep 10, 2019 RX Yes Yes 9,649,364 ⤷  Get Started Free Y TREATMENT OF SEVERE HYPOGLYCEMIA ⤷  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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