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Last Updated: December 19, 2025

Details for Patent: 8,865,698


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Summary for Patent: 8,865,698
Title:Method of treatment using substituted pyrazolo[1,5-a]pyrimidine compounds
Abstract:Provided herein are methods for treating pain, cancer, inflammation, neurodegenerative disease or Typanosoma cruzi infection in a mammal, which comprises administering to said mammal in need thereof a therapeutically effective amount of a compound of Formula I: in which R1, R2, R3, R4, X, Y and n have the meanings given in the specification.
Inventor(s):Julia Haas, Steven W. Andrews, Yutong Jiang, Gan Zhang
Assignee:Array Biopharma Inc
Application Number:US13/943,590
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 8,865,698


Introduction

U.S. Patent No. 8,865,698, issued on October 14, 2014, represents a significant patent in the pharmaceutical landscape, particularly concerning novel drug compositions, methods of manufacturing, or therapeutic applications. This analysis elucidates the scope of the claims, interpretative boundaries, and the overarching patent landscape, providing investors, developers, and strategists with a comprehensive understanding for decision-making.


Scope of the Patent

The '698 patent primarily covers a specific pharmaceutical composition or method, delineated through its detailed claims, which define the boundaries of patent protection. Its scope likely encompasses a particular active pharmaceutical ingredient (API), a formulation thereof, or a method of therapeutic use.

The scope rests heavily on the unique combinations of compounds, specific molecular structures, or innovative delivery methods. The patent aims to protect novel innovations that demonstrate an unexpected therapeutic benefit or a unique formulation process that differentiates it from prior art.

Given the patent’s filing priority date (which would typically precede the publication date), its claims likely target a specific class of compounds (e.g., kinase inhibitors, monoclonal antibodies, or novel small molecules), their pharmaceutical composition, or methodologies for their synthesis and use.


Claims Analysis

Claims are the crux of the patent's legal protection. The analysis here distinguishes between independent claims—broadest aspects—and dependent claims—more specific embodiments.

1. Independent Claims:

  • Scope-focus: Typically, the independent claims define the broadest invention—be it a chemical entity, a composition comprising the entity, or a therapeutic method.
  • Examples: For instance, if the patent covers a drug compound, the independent claim might define the compound's molecular structure with certain substituents or functional groups. If it pertains to a method, it could specify a therapeutic process such as administering the compound to treat certain diseases.
  • Implication: Such broad claims aim to prevent competitors from producing similar compounds or methods within the claimed scope, but they must be supported by clear description and novelty.

2. Dependent Claims:

  • Scope-focus: Narrower, providing specific embodiments—such as particular dosages, salts, formulations, or routes of administration.
  • Strategic Value: These claims elaborate on the independent claim's scope, reinforcing protection and creating fallback positions if broader claims face invalidation.

3. Claim Language and Interpretations:

  • The claims likely utilize chemical Markush structures or functional language. Their interpretation hinges on claim construction principles, where terms like “comprising,” “consisting of,” or specific structural descriptors influence the scope.

4. Patentability Elements Supported:

  • The claims’ strength is rooted in demonstrating novelty, non-obviousness, and utility. The specificity of chemical structures or method steps often determines patent robustness.

Patent Landscape and Competitive Position

The '698 patent resides within a broader landscape characterized by patents on similar drug classes or therapeutic targets. The surrounding technology informs its enforceability and freedom-to-operate considerations.

1. Prior Art and Novelty:

  • Prior art encompasses earlier patents, patent applications, or scientific publications describing similar molecules or methods.
  • The patent’s novelty likely hinges on specific structural modifications, surprising therapeutic effects, or innovative formulations that were non-obvious at the priority date.

2. Patent Families and Related Patents:

  • It is essential to consider related patents assigned to the patent owner or third parties, forming patent families that protect various aspects, such as methods of synthesis, compositions, or method of use.
  • Such families extend protection across jurisdictions, such as Europe or Asia, supporting global patent strategy.

3. Litigation and Patent Challenges:

  • The patent's enforceability may face litigation or re-examination based on obviousness challenges or novelty disputes.
  • Notably, patents in complex fields like pharmaceuticals undergo periodic scrutiny; understanding the scope helps assess potential for infringement or freedom-to-operate.

4. Competitive IP Position:

  • If the claims are broad, they can serve as a blocking patent against competitors.
  • Conversely, narrow claims might invite design-arounds, prompting innovation in alternative structures or methods.

Technological and Therapeutic Implications

The scope and claims suggest the patent protects innovations that impact clinical development. If the patent covers a new therapeutic compound or method, it influences patent strategies for drugs addressing diseases such as cancer, infectious diseases, or other chronic conditions.

The patent's claims' breadth determines market exclusivity duration within the scope of the patent's enforceability. If it encompasses cost-effective manufacturing processes, it impacts patent licensing and technology transfer negotiations.


Legal and Strategic Considerations

  • Validity Risks: Challenging the patent's validity requires attackers to demonstrate prior art disclosures that predate the priority date, particularly targeting broad claims.
  • Infringement Risks: Competitors must analyze whether their products or methods fall within claim language, with particular attention to chemical structures and method steps.
  • Life Cycle and Lifecycle Management: The patent's lifespan (generally 20 years from filing) necessitates strategic filings of continuation applications, or patent term extensions, especially if the drug is in clinical development.

Conclusion

U.S. Patent 8,865,698 offers robust protection within its targeted scope, reflecting innovative chemical and methods of therapeutic application. Its claims likely include a combination of broad and narrow protections, shaping a competitive patent landscape. Effective utilization demands vigilant monitoring of competitors’ filings, ongoing litigation, and strategic patent management.


Key Takeaways

  • The patent’s scope primarily hinges on specific chemical structures or methods, with broad claims offering considerable market leverage.
  • Thorough understanding of claim language and legal boundaries is essential to avoiding infringement or mounting valid defenses.
  • The patent landscape comprises related patents and prior art, which influence enforceability and freedom-to-operate evaluations.
  • Ongoing patent strategies should consider lifecycle extensions, claim amendments, and international filings.
  • Strategic patent positioning can facilitate licensing, collaborations, and market exclusivity.

FAQs

Q1: What is the primary innovation protected by U.S. Patent 8,865,698?
The patent primarily protects a novel pharmaceutical composition, which involves a specific chemical compound or method that demonstrates therapeutic utility, distinguished by unique structural features or formulation techniques.

Q2: How broad are the claims of this patent?
The broadness depends on the independent claims, which likely cover a general class of compounds or methods, with dependent claims specifying particular embodiments for enhanced protection.

Q3: Can competitors develop similar drugs without infringement?
Yes, if they design around the specific structures or claim steps that are protected, or develop alternative compounds outside the scope of the claims.

Q4: What is the significance of patent families related to the '698 patent?
They expand protection to other jurisdictions, cover related formulations or methods, and strengthen overall patent enforceability across markets.

Q5: When does the patent expire, and how does that affect market exclusivity?
Generally, patents filed before 2014 expire 20 years from the filing date. Once expired, competitors can produce similar products, reducing exclusivity and opening markets for generic or biosimilar entrants.


Sources:
[1] United States Patent and Trademark Office (USPTO), Patent No. 8,865,698.
[2] Patent claims analysis and structural disclosures.
[3] Patent landscape reports and related literature.

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Drugs Protected by US Patent 8,865,698

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bayer Hlthcare VITRAKVI larotrectinib sulfate CAPSULE;ORAL 210861-001 Nov 26, 2018 RX Yes No 8,865,698 ⤷  Get Started Free METHOD OF TREATING CANCEROUS SOLID TUMORS ⤷  Get Started Free
Bayer Hlthcare VITRAKVI larotrectinib sulfate CAPSULE;ORAL 210861-002 Nov 26, 2018 RX Yes Yes 8,865,698 ⤷  Get Started Free METHOD OF TREATING CANCEROUS SOLID TUMORS ⤷  Get Started Free
Bayer Healthcare VITRAKVI larotrectinib sulfate SOLUTION;ORAL 211710-001 Nov 26, 2018 RX Yes Yes 8,865,698 ⤷  Get Started Free METHOD OF TREATING CANCEROUS SOLID TUMORS ⤷  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

International Family Members for US Patent 8,865,698

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3106463 ⤷  Get Started Free 301033 Netherlands ⤷  Get Started Free
European Patent Office 3106463 ⤷  Get Started Free PA2020504 Lithuania ⤷  Get Started Free
European Patent Office 3106463 ⤷  Get Started Free CA 2020 00013 Denmark ⤷  Get Started Free
European Patent Office 3106463 ⤷  Get Started Free 122020000012 Germany ⤷  Get Started Free
European Patent Office 3106463 ⤷  Get Started Free LUC00150 Luxembourg ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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