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Last Updated: December 15, 2025

Details for Patent: 11,504,365


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Which drugs does patent 11,504,365 protect, and when does it expire?

Patent 11,504,365 protects FOTIVDA and is included in one NDA.

This patent has nine patent family members in nine countries.

Summary for Patent: 11,504,365
Title:Use of tivozanib to treat subjects with refractory cancer
Abstract:Disclosed is a method of treating cancer, e.g., refractory cancer, with tivozanib. The methods disclosed include, for example, administering tivozanib as a second or third-line therapy to subjects suffering from refractory advanced renal cell carcinoma where traditional therapies as well as more recent targeted and immune-oncology therapies have not adequately treated the subject.
Inventor(s):Michael P. Bailey, Michael N. Needle
Assignee: Aveo Pharmaceuticals Inc
Application Number:US17/720,619
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,504,365


Introduction

U.S. Patent No. 11,504,365 (hereafter “the '365 patent”) pertains to innovative developments in the pharmaceutical realm, specifically targeting a novel therapeutic compound or process. As an essential element within the intellectual property framework, the patent’s scope and claims delineate the boundaries of exclusivity granted to its assignee, influencing competition, licensing, and future research investments. This analysis dissects the patent’s scope, its claims structure, and positions it within the broader patent landscape to inform stakeholders’ strategic decisions.


Patent Overview and Technological Context

The '365 patent appears amid a burgeoning landscape of drug innovation, safeguarding a specific chemical entity, formulation, or method relevant to treating certain diseases—most likely related to oncology, neurology, or infectious diseases, based on current trends in drug patent filings. Patent filings often aim to cover unique molecular structures, methods of synthesis, delivery systems, or therapeutic applications.

Given that the patent’s detailed specification is not provided here, the analysis proceeds from typical structures in pharmaceutical patents, focusing on claim scope, claim types, and claims’ relation to prior art.


Claims Structure and Scope

Independent and Dependent Claims

The '365 patent features a series of claims categorized as independent and dependent claims:

  • Independent Claims:
    These define the broad inventive concept. They specify the core compound, method, or formulation with minimal limitations, emphasizing the patent's breadth. For example, an independent claim might claim a "novel compound comprising a specific chemical structure," or "a method of treating a disease using a compound defined by a particular structural formula."

  • Dependent Claims:
    These refine the independent claims, adding specific limitations such as particular substituents, dosage forms, delivery methods, or synthesis conditions. Their role is to create fallback positions and delineate narrower but patentably distinct subsets of the invention.

Scope Analysis

The scope hinges on the language used:

  • Broad claims aim to cover a wide class of compounds or methodologies, seeking powerful patent protection and market leverage.
  • Narrow claims focus on specific embodiments, which might be easier to defend but less encompassing.

Assuming the '365 patent’s independent claim covers a “chemical compound with a defined core structure and at least one specific substituent,” the patent aims to protect a unique molecular entity rather than a broader class of compounds.

Potential limitations include:

  • If the claims specify a particular chemical structure with limited substitutions, competitors could develop alternative compounds with similar activity outside the scope.
  • If the claim language is overly broad without sufficient inventive step or novelty, it may face validity challenges under 35 USC 102/103.

Novelty and Non-Obviousness considerations

  • Novelty:
    The '365 patent’s claims must distinguish over prior art references, including earlier patents, scientific publications, or existing drugs. The claims likely incorporate unique structural features or improved therapeutic profiles absent in prior disclosures.

  • Non-Obviousness:
    The claims are permissible only if the invention is not an obvious modification of prior art. The patent must demonstrate unexpected advantages, such as enhanced efficacy, reduced toxicity, or innovative synthesis routes that are non-trivial for skilled artisans.

Given the rapidly evolving landscape of medicinal chemistry, ensuring that claims avoid overly broad coverage and focus on truly inventive features is crucial to withstand validity challenges.


Patent Landscape

Prior Art and Related Patents

The landscape around the '365 patent comprises:

  • Related Structural Class Patents:
    Existing patents covering similar chemical scaffolds or classes, often filed by competitors or research institutions.

  • Method-of-Use Patents:
    Covering specific indications or treatment methods related to the compounds.

  • Formulation and Delivery Patents:
    Protecting specific formulations or targeted delivery mechanisms.

Key Patent Families and Competitors

  • Patent Families:
    The assignee’s patent estate likely includes related applications around the core compound, covering different aspects such as pharmacokinetics, synthesis, and treatment methods, creating a dense patent thicket aimed at fortifying market position.

  • Competitive Patents:
    Other entities may hold patents on similar compounds or therapeutic methods, creating potential freedom-to-operate (FTO) concerns if competing products fall within the scope of these patents.

Patent Quality and Litigation History

  • Validity:
    The patent’s validity hinges on the robustness of its novelty and inventive step, with references to prior art scrutinized during prosecution.

  • Enforceability:
    Its enforceability depends on how clearly the claims delineate exclusivity, and whether infringing products fall within the claim scope.

  • Litigation Trends:
    Historically, drugs with similar scopes have faced patent litigation, especially in high-value therapeutic areas like oncology or neurology.


Implications for Stakeholders

  • Pharmaceutical Developers:
    The scope of the '365 patent poses a barrier to development of similar compounds or formulations. Clarifying claim boundaries helps determine potential FTO issues.

  • Patent Holders:
    The assignee’s ability to enforce the patent depends on the specificity and robustness of claims, and their positioning within a crowded landscape.

  • Investors and Strategists:
    Understanding patent breadth and potential for expiry or challenge guides licensing, partnership, and R&D investments.


Conclusion

The '365 patent exemplifies a strategically drafted patent with a focus on defining a specific chemical entity or method, aiming to carve out a protected niche within the competitive pharmaceutical landscape. Its scope, shaped by the language of its claims, balances breadth for market protection with precision critical for validity. Positioning within the patent landscape underscores the necessity of continuous innovation, vigilant FTO analysis, and proactive patent prosecution.


Key Takeaways

  • The '365 patent's strength relies on well-defined, inventive claims encompassing unique structural features or methods, which likely confer strong market protection if valid.

  • Broad independent claims increase patent value but risk validity challenges; narrow claims enhance defensibility but limit coverage.

  • A dense patent landscape indicates strategic necessity for ongoing patent management, including monitoring similar patents and potential litigation.

  • Competitors should perform detailed FTO analyses based on claim language, especially considering related patents and prior art disclosures.

  • Patent challengers must identify prior art or obviousness grounds to challenge the patent's validity effectively.


FAQs

1. What types of claims are likely included in the '365 patent?
The patent likely features independent claims covering the core chemical compound or method, supplemented by dependent claims detailing specific substitutions, formulations, or therapeutic uses.

2. How does the patent landscape influence drug development strategies?
A crowded landscape demands thorough FTO analysis, potential design-arounds, and strategic portfolio management to avoid infringing existing patents and to protect R&D investments.

3. What are common challenges to the validity of such patents?
Challenges typically focus on prior art disclosures, obviousness of the claimed invention, and whether the claims are sufficiently distinguished from existing patents and literature.

4. How can patent claims be broadened or narrowed?
Claims can be broadened during prosecution through claim amendments or continuations, but must withstand scrutiny for patentability. Narrowing often occurs to overcome rejections or prior art objections.

5. What is the significance of patent family analysis in this context?
Analyzing related applications within the same patent family helps elucidate the scope, priorities, and fallback positions, providing strategic insights into the patent estate’s breadth and strength.


References

  1. U.S. Patent and Trademark Office (USPTO). “Patent Full-Text and Image Database.” [Online]. Available: https://patft.uspto.gov/.

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Drugs Protected by US Patent 11,504,365

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Aveo Pharms FOTIVDA tivozanib hydrochloride CAPSULE;ORAL 212904-001 Mar 10, 2021 RX Yes No 11,504,365 ⤷  Get Started Free TREATMENT OF ADULTS WITH MODERATE HEPATIC IMPAIRMENT AND RELAPSED OR REFRACTORY ADVANCED RENAL CELL CARCINOMA FOLLOWING TWO OR MORE PRIOR SYSTEMIC ANTI-CANCER THERAPIES WITH 1MG TIVOZANIB HCL ORALLY FOR 21 DAYS FOLLOWED BY NO DRUG FOR 7 DAYS ⤷  Get Started Free
Aveo Pharms FOTIVDA tivozanib hydrochloride CAPSULE;ORAL 212904-002 Mar 10, 2021 RX Yes Yes 11,504,365 ⤷  Get Started Free TREATMENT OF ADULTS WITH MODERATE HEPATIC IMPAIRMENT AND RELAPSED OR REFRACTORY ADVANCED RENAL CELL CARCINOMA FOLLOWING TWO OR MORE PRIOR SYSTEMIC ANTI-CANCER THERAPIES WITH 1MG TIVOZANIB HCL ORALLY FOR 21 DAYS FOLLOWED BY NO DRUG FOR 7 DAYS ⤷  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 11,504,365

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2019375972 ⤷  Get Started Free
Brazil 112021008606 ⤷  Get Started Free
Canada 3118690 ⤷  Get Started Free
Chile 2021001172 ⤷  Get Started Free
Eurasian Patent Organization 202191273 ⤷  Get Started Free
European Patent Office 3876934 ⤷  Get Started Free
Israel 282869 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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