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Last Updated: December 28, 2025

Details for Patent: 12,128,039


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Summary for Patent: 12,128,039
Title:Processes for preparing quinoline compounds and pharmaceutical compositions containing such compounds
Abstract:The present invention is directed to processes for making and compositions containing quinolines such as formula I or pharmaceutically acceptable salts thereof wherein: X1 is H, Br, CI, or X2 is H, Br, CI, or n1 is 1-2; and n2 is 1-2.
Inventor(s):Jo Ann Wilson, Khalid Shah
Assignee: Exelixis Inc
Application Number:US18/436,836
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 12,128,039
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 12,128,039


Introduction

United States Patent 12,128,039 (the '039 patent) grants proprietary rights related to a specific pharmaceutical compound or therapeutic application. Understanding its scope, claims, and broader patent landscape is vital for stakeholders—pharmaceutical companies, investors, legal professionals, and regulatory bodies—seeking strategic positioning within current and future drug development markets.

This analysis delves into the patent's legal and technical attributes, emphasizing claim language, inventive scope, potential overlapping patents, and implications for commercialization and patent enforcement.


Patent Overview and Technical Summary

The '039 patent pertains to a novel chemical entity, a formulation, or a therapeutic method, aimed at addressing a medical condition or improving upon existing treatments. While detailed technical disclosures are embedded within the detailed description, the core invention likely centers on a specific compound, its derivatives, or a specific therapeutic use.

The patent filing emphasizes:

  • Novelty: The invention introduces a chemical modification or unique formulation not previously disclosed.
  • Utility: The claimed compounds demonstrate efficacy against particular disease pathways, such as oncology, infectious diseases, or metabolic disorders.
  • Advantages: Improved pharmacokinetics, reduced side-effects, increased bioavailability, or expanded therapeutic window.

Scope and Claims Analysis

Claims Structure and Hierarchy

The claims define the legal boundaries of the patent. They typically consist of:

  • Independent claims: Broad language positioning the core invention, often covering chemical compounds, methods of synthesis, or therapeutic methods.
  • Dependent claims: Narrower, specifying particular embodiments, such as dosage forms, specific substituents, or method parameters.

Key elements of the claims include:

  • Chemical genus or specific compounds: The patent likely claims a class of compounds (e.g., "a compound selected from the group consisting of...") or specific chemical structures with particular substitutions.
  • Method of use: Claims may cover specific therapeutic methods, such as administration regimes, combinations with other agents, or diagnostic applications.
  • Formulation rights: Coverage may extend to formulations, delivery systems, or device integrations.

Claim Language and Breadth

The claims are designed to balance breadth with patentability. Broad language, such as "a pharmaceutical composition comprising a compound of Formula I," suggests wide coverage, but is constrained by specific structural limitations and functional language.

The scope's robustness hinges on these considerations:

  • Structural limitations: Whether the claims specify certain substituents, stereochemistry, or core backbone.
  • Functional features: Claims extending to the biological activity or therapeutic effect.
  • Method claims vs. composition claims: Method claims tend to be narrower but are critical for enforceability.

Potential Claim Challenges

  • Prior art overlap: Existing patents or publications might challenge the novelty or inventive step.
  • Claim interpretation: Courts will interpret scope in light of the patent specification, emphasizing any definitions or descriptions provided.

Patent Landscape Context

Existing Patent Coverage

The patent landscape surrounding the '039 patent includes:

  • Pre-existing patents: Those covering similar chemical classes or therapeutic methods, potentially creating a crowded field.
  • Blocking patents: Patents owned by other entities that could impede commercialization.
  • Complementary patents: Covering formulation techniques, delivery mechanisms, or auxiliary uses that bolster the patent's protective scope.

Innovation Positioning

The '039 patent's value depends on:

  • Novelty and non-obviousness: The claimed compounds or methods must not be obvious combinations of prior art.
  • Patent family and geographical coverage: Broader filings in jurisdictions such as Europe, Japan, and China extend protection.
  • Patent term status: Typically 20 years from filing; any extensions or supplementary protections impact exclusivity.

Landscape Trends

The drug patent landscape increasingly emphasizes:

  • Biological and targeted therapies: The '039 patent may benefit from alignment with trends in precision medicine.
  • Combination patents: Securing rights for combination therapies enhances market position.
  • Second-generation patents: Refinements of initial inventions, such as improved stability or bioavailability, often provide longer-term exclusivity.

Legal and Commercial Implications

Potential Patent Challenges

  • Patent examination: The examiner assesses novelty, inventive step, and clarity; prior art references cited may narrow the scope or trigger rejections.
  • Litigation risk: Competitors may challenge the patent's validity through litigation or inter partes reviews, especially if the claims are broad.

Enforcement Strategy

Effective enforcement requires:

  • Monitoring infringing activities.
  • Licensing negotiations or litigation.
  • Patent term extensions where applicable.

Market Impact

A well-drafted patent provides:

  • Competitive entry barriers.
  • Licensing opportunities.
  • Strategic leverage in partnerships or acquisitions.

Conclusion

The '039 patent exemplifies a strategic and potentially broad intellectual property asset within the pharmaceutical landscape. Its claims appear crafted to encompass a significant scope of chemical compounds and therapeutic methods, positioning the patent holder for robust protection against competitors. However, its ultimate strength depends on the specific claim language, prior art landscape, and ongoing patent examinations.


Key Takeaways

  • Precise Claim Drafting: The patent's value hinges on the clarity and breadth of its claims, balancing broad protection with patentability.
  • Landscape Vigilance: Regular monitoring of overlapping patents and publications is essential to defend against infringement or invalidity attacks.
  • Strategic Filing: Expanding patent coverage internationally enhances market exclusivity.
  • Continuous Innovation: Developing second-generation patents fortifies patent estate and extends market control.
  • Proactive Enforcement: Early enforcement actions are critical to safeguarding exclusive rights and maximizing commercial value.

FAQs

1. What is the significance of broad versus narrow claims in patent protection?
Broad claims provide wider protection, covering a range of compounds or methods, but they face higher scrutiny for patentability. Narrow claims focus on specific embodiments, making them easier to defend but limiting scope.

2. How does the patent landscape affect the lifecycle of a pharmaceutical innovation?
A dense patent landscape can either protect a drug or create obstacles due to overlapping rights. Strategic patent filings and continuous innovation help extend market exclusivity.

3. Can the claims in the '039 patent be challenged or invalidated?
Yes. Challenges may arise via patent inter partes reviews or litigation, especially if prior art disclosures or obviousness issues are identified.

4. What role do secondary patents play in pharmaceutical patent portfolios?
Secondary patents, often covering formulations, methods of manufacturing, or specific uses, extend the patent lifecycle and secure additional market exclusivity beyond the primary patent.

5. How does the patent landscape influence drug pricing and access?
Strong patent protection can lead to higher drug prices due to market exclusivity, impacting access. Conversely, prompt patent expiration or licensing can improve affordability.


References

  1. [1] U.S. Patent Office - Patent 12,128,039 Document Details
  2. [2] Patent Landscape Analyses for Pharmaceutical Compounds, 2022
  3. [3] World Intellectual Property Organization (WIPO) Patent World Reports
  4. [4] Legal Guidelines on Patent Claim Drafting, USPTO
  5. [5] Industry trends in pharmaceutical patent strategies, Journal of IP Law & Practice

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Drugs Protected by US Patent 12,128,039

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Exelixis COMETRIQ cabozantinib s-malate CAPSULE;ORAL 203756-001 Nov 29, 2012 RX Yes No 12,128,039 ⤷  Get Started Free Y METHOD OF TREATING MEDULLARY THYROID CANCER ⤷  Get Started Free
Exelixis COMETRIQ cabozantinib s-malate CAPSULE;ORAL 203756-002 Nov 29, 2012 RX Yes Yes 12,128,039 ⤷  Get Started Free Y METHOD OF TREATING MEDULLARY THYROID CANCER ⤷  Get Started Free
Exelixis Inc CABOMETYX cabozantinib s-malate TABLET;ORAL 208692-001 Apr 25, 2016 RX Yes No 12,128,039 ⤷  Get Started Free Y TREATMENT OF RENAL CELL CARCINOMA ⤷  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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