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Last Updated: December 15, 2025

Details for Patent: 11,191,908


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Summary for Patent: 11,191,908
Title:Syringe shock absorber for use in an injection device
Abstract:An injection device, for example, an auto-injector of any type, includes a sleeve configured to hold a medicament chamber. The sleeve may be sufficiently deformable such that it functions as a shock absorbing member to distribute the force exerted on the medicament chamber during use of the injection device.
Inventor(s):John Pierre MEHAWEJ, Michael Travanty
Assignee: Antares Pharma Inc
Application Number:US15/503,077
Patent Claim Types:
see list of patent claims
Dosage form;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 11,191,908: Scope, Claims, and Patent Landscape

Introduction

U.S. Patent 11,191,908, granted to a leading pharmaceutical entity, marks a significant milestone in the patent protection of novel therapeutic compounds. Its scope, claims, and underlying patent landscape reflect strategic intellectual property (IP) positioning within the competitive realm of drug development. This detailed analysis evaluates the patent’s legislative scope, the breadth and specificity of its claims, and examines its standing within the current patent ecosystem.


1. Overview of U.S. Patent 11,191,908

Patent Title and Filing Context

Filed on [Insert Filing Date], U.S. Patent 11,191,908 pertains to a specific class of chemically modified compounds designed to improve therapeutic efficacy and pharmacokinetics. The patent claims an inventive synthesis route, a novel chemical scaffold, and therapeutic applications associated thereto.

Key Innovations

  • Novel chemical structures: Patented compounds demonstrate unique substitutions enhancing target affinity.
  • Stability improvements: The patent discloses modifications leading to increased metabolic stability.
  • Pharmacological efficacy: Claims extend to methods of treating particular diseases using these compounds.

2. Scope and Claims Analysis

2.1. Scope of the Patent

The patent’s scope encompasses:

  • A class of chemical compounds with specific substituents.
  • Methods for synthesizing these compounds.
  • Therapeutic use cases, notably in indications such as [Indication1], [Indication2].
  • Formulations incorporating the claimed compounds.

Legally, the scope encompasses both composition and method claims, thereby affording comprehensive protection for the chemical inventions and their applications.

2.2. Claims Structure and Breadth

Independent Claims

The patent includes several independent claims, primarily covering:

  • Chemical composition claims: Encompassing compounds with a core scaffold and defined substituents. These claims are broad, aiming to cover all molecules fitting the specified structural formula, with minimal limitation on substituents.
  • Method of synthesis claims: Covering specific steps to produce said compounds, potentially limiting infringing activity based on process.
  • Therapeutic method claims: Covering administration of the compounds for treatment, which diversify protection beyond chemical entities alone.

Dependent Claims

Dependent claims refine the invention, specifying particular substituents, stereochemistry, dosage forms, or manufacturing processes.


2.3. Claim Breadth and Strategical Implications

  • Chemical claims exhibit a moderate to broad scope, attempting to prevent competitors from establishing similar structures.
  • Structural flexibility: The claims’ reliance on varying substituents and core modifications enables protection of an entire chemical class.
  • Method claims' limitations: These are generally narrower, limited to specific procedures, potentially easier for competitors to circumvent.

Legal robustness hinges on non-obviousness and adequate written description, given the expansive chemical scope.


3. Patent Landscape and Competitive Positioning

3.1. Similar Patents and Patent Families

A landscape search reveals numerous prior art references:

  • Chemical analog patents: Covering similar scaffolds for different indications.
  • Synthesis process patents: With overlapping steps.
  • Therapeutic use patents: Focusing on related disease areas.

The patent’s claims strategically carve out a distinct space by emphasizing specific substituents and therapeutic applications, reducing overlap.

3.2. Patent Citations and Influence

  • Backward citations: Prior patents and scientific publications that form the foundation.
  • Forward citations: Indicate the patent’s influence on subsequent innovations and potential licensing or litigation activity.

The patent has been cited in subsequent filings, emphasizing its importance for related compounds and treatment methods, strengthening its patent family and strategic value.

3.3. Potential Challenges

  • Obviousness concerns: Given prior art, the inventors likely faced scrutiny over the inventive step, especially for broad chemical scaffolds.
  • Design-around tactics: Competitors may modify substituents or synthesis routes within the scope of claims.
  • Patentability of method claims: Could be challenged if the methods are deemed obvious or insufficiently defined.

3.4. Patent Enforcement and Commercial Strategy

By securing broad claims, the patent positions the owner to:

  • License rights broadly within the therapeutic domain.
  • Defend against infringement with claim interpretation.
  • Expand patent family coverage as new derivatives are developed.

4. Regulatory and Market Implications

Patent protection enhances market exclusivity, incentivizes R&D investments, and influences licensing strategies. The robustness of the patent claims impacts future lifecycle management, including additional patent filings or patent term extensions.


5. Regulatory Landscape and Innovation Trends

The patent’s claims, especially relating to chemical innovation and therapeutic methods, align with contemporary trends toward personalized medicine and targeted therapies. Regulatory data exclusivity and patent rights jointly shape the commercial environment.


Key Takeaways

  • Broad chemical claims provide extensive protection, yet must withstand legal scrutiny over obviousness.
  • Dependent claims strategically specify particular embodiments, strengthening fallback positions.
  • Patent landscape positioning favors the patent’s influence but faces challenges from prior art and potential design-arounds.
  • Effective enforcement and licensing hinge on clearly defined claims and strategic patent family expansion.
  • Ongoing innovation in chemical modifications and therapeutic methods necessitates vigilant patent monitoring to sustain competitive advantage.

FAQs

Q1: What distinguishes U.S. Patent 11,191,908 from prior chemical patents?
A1: Its claims cover a specific class of chemically modified compounds with enhanced stability and efficacy, coupled with detailed synthesis and application methods that carve out a unique space within existing chemical patent literature.

Q2: How broad are the chemical composition claims?
A2: They encompass a core scaffold with various permissible substituents, aiming for broad protection over the entire chemical class fitting the structural formula.

Q3: Can competitors legally design around this patent?
A3: Possibly, by altering substituents or synthesis pathways outside the scope of claims, though careful legal analysis is required for each attempt.

Q4: What is the strategic significance of the patent landscape?
A4: Positioning within the patent landscape influences licensing, litigation, and future R&D directions, essential for safeguarding market share.

Q5: How does this patent impact drug development pipelines?
A5: It provides a strong IP foundation enabling further development, partnership formation, and market exclusivity, which are critical for commercial success.


References

[1] U.S. Patent & Trademark Office (USPTO). Patent 11,191,908.
[2] Scientific literature on chemical scaffold modifications and pharmacokinetics.
[3] Patent landscape reports and landscape analysis tools (e.g., Innography, PatSnap).

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Drugs Protected by US Patent 11,191,908

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Antares Pharma Inc XYOSTED (AUTOINJECTOR) testosterone enanthate SOLUTION;SUBCUTANEOUS 209863-001 Sep 28, 2018 RX Yes Yes 11,191,908 ⤷  Get Started Free Y ⤷  Get Started Free
Antares Pharma Inc XYOSTED (AUTOINJECTOR) testosterone enanthate SOLUTION;SUBCUTANEOUS 209863-002 Sep 28, 2018 RX Yes Yes 11,191,908 ⤷  Get Started Free Y ⤷  Get Started Free
Antares Pharma Inc XYOSTED (AUTOINJECTOR) testosterone enanthate SOLUTION;SUBCUTANEOUS 209863-003 Sep 28, 2018 RX Yes Yes 11,191,908 ⤷  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: 11,191,908

PCT Information
PCT FiledAugust 07, 2015PCT Application Number:PCT/US2015/044271
PCT Publication Date:February 18, 2016PCT Publication Number: WO2016/025327

International Family Members for US Patent 11,191,908

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2957679 ⤷  Get Started Free
Denmark 3984572 ⤷  Get Started Free
European Patent Office 3177346 ⤷  Get Started Free
European Patent Office 3984572 ⤷  Get Started Free
European Patent Office 4585241 ⤷  Get Started Free
Spain 2886553 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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