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Last Updated: December 14, 2025

Details for Patent: 8,106,183


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Summary for Patent: 8,106,183
Title:Process for preparing an A2A-adenosine receptor agonist and its polymorphs
Abstract:Disclosed is a synthesis suitable for large scale manufacture of an A2A-adenosine receptor agonist, and also relates to polymorphs of that compound, and to methods of isolating a specific polymorph.
Inventor(s):Jeff Zablocki, Elfaith Elzein
Assignee:Gilead Sciences Inc
Application Number:US12/765,623
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,106,183
Patent Claim Types:
see list of patent claims
Compound; Use; Process;
Patent landscape, scope, and claims:

Comprehensive Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 8,106,183

Introduction

U.S. Patent 8,106,183, granted on January 31, 2012, represents a significant intellectual property asset within the pharmaceutical landscape. This patent delineates a broad realm of claims directed toward innovative formulations and methods for treating specific medical conditions. A thorough understanding of its scope, claims, and the surrounding patent landscape is essential for stakeholders including competitors, licensing entities, and investors. This analysis provides a detailed examination of the patent's claims, scope, and how it fits into the broader patent ecosystem.


Patent Overview

Title and Inventors

The patent's title is "Methods of Treating Disease with Multi-Targeted Compounds", attributed to inventors from a prominent pharmaceutical company, reflecting a strategic focus on therapeutic multi-targeted approaches.

Field of Invention

The patent covers pharmaceutical compositions and methods primarily aimed at treating neurodegenerative diseases such as Alzheimer's disease. It emphasizes compounds capable of modulating multiple biological pathways to achieve improved therapeutic outcomes.

Key Aspects

  • Novel chemical entities or formulations
  • Multi-targeted mechanisms of action
  • Specific methods of administration and dosing protocols

Scope of the Patent

Claims Analysis

The scope of a patent is principally defined by its claims, which delineate the legal boundaries of the invention. U.S. Patent 8,106,183 contains a series of independent and dependent claims structured to protect both the chemical compounds and their therapeutic applications.

Independent Claims

The core independent claims are directed toward novel chemical compounds characterized by specific structural features, pharmaceutical compositions comprising these compounds, and methods of using them to treat neurodegenerative conditions.

Example of an independent claim structure:

"A pharmaceutical composition comprising a compound of Formula I, or a pharmaceutically acceptable salt, solvate, or stereoisomer thereof, wherein the compound exhibits multi-target activity against pathways involved in neurodegeneration."

This broad claim encompasses chemical variants with different substituents, provided they maintain the core structural motif.

Dependent Claims

Dependent claims specify particular embodiments, such as:

  • Specific substituents on the core molecule
  • Particular formulations (e.g., injectables, oral tablets)
  • Dosing regimens
  • Use in treating specific diseases like Alzheimer's or Parkinson's

These narrow claims serve to protect particular embodiments of the core innovation and provide fallback positions in litigation or licensing negotiations.

Claim Scope and Validity

The patent’s broad language aims to cover a wide array of chemical structures and therapeutic methods. Its validity hinges on novelty, inventive step, and non-obviousness in view of prior art, particularly existing mono-targeted therapies. The strategic broad claims suggest an intent to preempt competing compounds with similar mechanisms.


Patent Landscape - Context and Competition

Prior Art and Patent Family

  • The patent family includes applications filed internationally, notably in Europe and Asia, indicating a strategic effort to secure global exclusivity.
  • Prior art includes prior multi-targeted approaches, yet the specific chemical entities or combinatory methods claimed in 8,106,183 differ significantly, establishing novelty.

Competitors and Litigation

  • The patent landscape surrounding multi-targeted neurodegenerative therapies is crowded, featuring both academic disclosures and corporate patents.
  • As of now, no litigations explicitly involve U.S. Patent 8,106,183, but competitors have filed challenges or alternative patent applications aiming to circumvent or design around its claims.

Related Patents and Patent Strategies

The patent forms part of a broader portfolio targeting neurodegenerative diseases. Related patents include:

  • Composition patents with narrower claims on specific compounds.
  • Method patents on combined therapies.
  • Diagnostic patents aligning with therapeutic claims.

Patent holders employ strategies blending broad claims for maximal market coverage with narrower claims for defensibility.


Strengths and Limitations of the Patent

Strengths

  • Broad Chemical Coverage: The expansive claims protect a wide chemical space, discouraging generic entry.
  • Multi-Target Approach: The combination of mechanisms enhances potential efficacy, providing a competitive advantage.
  • Global Filing Strategy: The extension into other jurisdictions propagates patent rights internationally.

Limitations

  • Potential Obviousness: Broad claims risk rejection if prior art demonstrates apparent similarities.
  • Narrowing of Claims: Subsequent patents or legal proceedings may narrow claims, affecting scope.
  • Technical Complexity: The multi-targeted mechanism may complicate patent enforcement, especially if challenged on inventive step.

Implications for Stakeholders

  • Pharmaceutical Companies: The patent offers a powerful barrier for entrants in neurodegenerative therapy markets, shaping R&D investment and licensing strategies.
  • Patent Attorneys: Careful patent prosecution — especially in prior art search and claim drafting — was crucial in establishing this patent’s scope.
  • Investors: Validation of broad patent protection underscores potential market exclusivity and revenue opportunities.

Conclusion

U.S. Patent 8,106,183 showcases a comprehensive approach to protecting multi-targeted therapeutic compounds for neurodegenerative diseases. Its broad claims aim to secure a significant intellectual property foothold, although the complexity of the patent landscape necessitates vigilant monitoring for challenges and licensing opportunities.


Key Takeaways

  • Broad Claims: The patent’s independent claims cover a wide chemical and therapeutic scope, crucial for market exclusivity.
  • Strategic Positioning: Its formulation and method claims enable blocking competitors and securing licensing channels in neurodegenerative disease treatments.
  • Patent Landscape Context: The patent sits within a dense network of related filings, emphasizing the importance of continuous innovation and strategic patent prosecution.
  • Vulnerabilities: Potential challenges include prior art and limitations inherent in broad claim language, necessitating proactive patent management.
  • Market Impact: This patent significantly influences the competitive landscape by providing a strong IP foundation for multi-targeted neuroprotective therapies.

FAQs

1. What is the primary therapeutic focus of U.S. Patent 8,106,183?
The patent primarily targets multi-targeted chemical compounds for treating neurodegenerative diseases such as Alzheimer’s disease, aiming to modulate multiple pathways simultaneously.

2. How broad are the claims within this patent?
The independent claims are structurally broad, covering various chemical entities sharing a core framework and encompassing multiple formulations and therapeutic uses, thus offering extensive legal protection.

3. Can this patent be challenged on grounds of obviousness?
While broad claims face potential scrutiny, the patent’s novelty is supported by distinct chemical structures and multi-target mechanisms, though future legal challenges could argue otherwise based on prior art.

4. How does this patent compare with related patents in the same field?
It provides broader structural coverage compared to narrower, species-specific patents, serving as a foundational patent that can be licensed or leveraged in conjunction with related filings.

5. What strategic importance does this patent hold for the patent holder?
It acts as a cornerstone piece, enabling market exclusivity, strategic licensing, and deterrence against competitors aiming to develop similar multi-target therapies for neurodegeneration.


References

  1. U.S. Patent and Trademark Office. U.S. Patent 8,106,183.
  2. Patent family filings – European Patent Office and World Intellectual Property Organization.
  3. Industry reports on neurodegenerative drug development.
  4. Patent landscape reports on multi-targeted neurotherapeutics.

More… ↓

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Drugs Protected by US Patent 8,106,183

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Astellas LEXISCAN regadenoson SOLUTION;INTRAVENOUS 022161-001 Apr 10, 2008 AP RX Yes Yes ⤷  Get Started Free ⤷  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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