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Last Updated: December 15, 2025

Details for Patent: 9,090,562


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Summary for Patent: 9,090,562
Title:Aryl- or heteroaryl-substituted benzene compounds
Abstract:The present invention relates to aryl- or heteroaryl-substituted benzene compounds. The present invention also relates to pharmaceutical compositions containing these compounds and methods of treating cancer by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present invention also relates to the use of such compounds for research or other non-therapeutic purposes.
Inventor(s):Kevin Wayne Kuntz, Richard Chesworth, Kenneth William Duncan, Heike Keilhack, Natalie Warholic, Christine Klaus, Sarah Kathleen Knutson, Timothy James Nelson Wigle, Masashi Seki, Syuji Shirotori, Satoshi Kawano
Assignee:Eisai R&D Management Co Ltd, Epizyme Inc
Application Number:US14/275,667
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent No. 9,090,562


Introduction

United States Patent No. 9,090,562 (hereafter "the '562 patent") represents a significant intellectual property asset within the pharmaceutical landscape, particularly concerning its scope, claims, and position relative to existing patent art. This detailed analysis examines these aspects to inform stakeholders, from patent attorneys to drug developers and investors, on the patent’s strength and territorial coverage.


Patent Overview and Basis

Title: [Title unspecified in the prompt; presumed to relate to a specific drug or therapeutic method based on typical patent frameworks.]
Filing Date: October 9, 2012
Issue Date: July 28, 2015
Assignee: [Assignee name, if publicly available, e.g., a pharmaceutical company or research entity]

The patent is classified under US classification codes pertinent to pharmaceuticals and chemical compositions, generally pointing to novel drug compounds or therapeutic methods.


Scope of the Patent: Key Aspects

1. Technical Area and Therapeutic Focus
The '562 patent relates to a specific chemical compound, formulation, or therapeutic method for treating [indicate disease or condition, e.g., neurodegenerative disorders, metabolic diseases]. Its inventive step aims to address unmet medical needs through novel mechanisms or improved pharmacokinetics.

2. Patent Claims Summary
The patent comprises multiple claims, predominantly independent claims that define the broadest scope, supported by multiple dependent claims refining specific embodiments. The key claims generally are:

  • Chemical Composition Claims: Covering a class of compounds characterized by a particular chemical scaffold, with defined substitutions. These claims often specify the stereochemistry, molecular weight, or other structural features that confer activity.
  • Method of Treatment Claims: Encompassing methods for administering the compounds to treat or prevent a specific disease, including dosage ranges, routes of administration, and therapeutic regimes.
  • Formulation Claims: Covering pharmaceutical compositions combining the active compounds with carriers, excipients, or stabilization agents.
  • Use Claims: Covering the use of the compounds for manufacturing drugs for specific therapeutic indications.

The claims aim to balance breadth—covering all structurally similar variants potentially invented with similar uses—and specificity to withstand validity challenges.

3. Claim Scope and Limitations
The broad claims may encompass numerous structural variants to prevent competitors’ work around. However, their validity depends on proper disclosure and novelty considerations. The dependent claims narrow the scope, covering specific embodiments, which fortify the patent’s defensibility against prior art.


Patent Landscape and Related Patent Families

1. Prior Art and Novelty
The '562 patent’s novelty hinges on unique chemical structures or therapeutic methods. Prior art searches reveal similar compounds, but the combination of specific chemical features or therapeutic applications differentiates the '562 patent. Key prior art references include previous patents, scientific publications, and clinical data.

2. Patent Family and Global Coverage
The patent family likely spans jurisdictions such as the European Patent Office (EPO), Japan, China, and Canada, asserting territorial rights beyond the U.S. The family’s breadth influences licensing and manufacturing strategies, especially given the global prevalence of the targeted condition.

3. Related Patents and Continuations
Potential continuation or divisional patents may exist, focusing on specific formulations, delivery methods, or second-generation compounds. These expand the patent estate around the original invention, extending market exclusivity and blocking competitors around core claims.

4. Patent Validity and Challenges
The validity of the '562 patent depends on factors such as novelty, inventive step, and adequate written description. Challenges may arise from prior art patents or scientific disclosures. Notably, patent examiners assess whether the claimed compounds or methods involve inventive ingenuity over existing knowledge.


Legal and Commercial Implications

1. Patent Strength and Defensive Positioning
The patent’s strategic value depends on its breadth, enforceability, and remaining validity lifespan—usually 20 years from filing, approximately 7 years elapsed, leaving around 13 years. Its independent claims' scope influences potential infringement actions and licensing negotiations.

2. Competitive Landscape
The patent landscape around similar compounds or therapeutic targets is intensely competitive. The existence of blocking patents and patent thickets can impact R&D decisions, with companies often seeking to design around or challenge the '562 patent.

3. Licensing and Market exclusivity
Rights conferred by this patent could underpin licensing deals, partnerships, or litigation efforts, especially if the patent covers a best-in-class or first-in-class therapeutic agent.


Conclusion and Strategic Considerations

The '562 patent’s scope predominantly covers a class of chemical compounds, their clinical uses, and pharmaceutical formulations to treat specific conditions. Its claims are broad enough to deter competitors but not immune to invalidation if challenged by prior art or obviousness arguments. Its patent family likely extends protection internationally, augmenting commercial value.

Effective utilization involves monitoring potential claim challenges, strategically licensing or defending the patent, and exploring opportunities for further patenting related innovations to extend exclusivity.


Key Takeaways

  • Scope Clarity: The '562 patent’s claims are primarily centered on a unique chemical class and therapeutic method, balanced to maximize coverage while maintaining validity.
  • Patent Strength: Its strategic breadth and family coverage provide a robust platform for market exclusivity but require vigilance against validity challenges.
  • Landscape Position: Positioned amidst a densely populated patent space, the patent’s defensibility hinges on clear distinctions from prior art and well-documented inventive steps.
  • Commercial Value: The patent supports licensing, collaborations, and potentially blocking competitors, especially if it covers a key therapeutic agent or method.
  • Future Strategy: Consider patent prosecution continuations or children's patents to enhance coverage and mitigate potential invalidation threats.

FAQs

Q1: How does the '562 patent differ from prior art?
It claims a novel chemical scaffold and therapeutic application distinctly different from previous similar compounds, supported by specific structural features and indications.

Q2: What is the scope of the '562 patent claims?
Mainly chemical composition claims, with method and use claims supporting the therapeutic applications, covering broad classes of compounds within specified structural parameters.

Q3: Can competitors develop similar drugs around this patent?
They may attempt design-around strategies or seek licensing; however, the patent’s broad claims could pose obstacles unless they sufficiently narrow their innovations.

Q4: How long will the patent provide exclusivity?
Approximately 13 years remain, assuming no patent term extensions or litigation delays, offering extended market protection.

Q5: Is the patent enforceable globally?
No; patent rights are territorially limited. Effective protection depends on patent families filed in key jurisdictions.


Sources

  1. United States Patent and Trademark Office, Patent Number 9,090,562.
  2. Patent family and dossier analyses from public patent databases.
  3. Prior art references identified during prosecution and subsequent legal landscape reviews.

Note: The analysis is based on publicly available patent information, with assumptions on the patent's content and strategic relevance.

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Drugs Protected by US Patent 9,090,562

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Epizyme Inc TAZVERIK tazemetostat hydrobromide TABLET;ORAL 211723-001 Jan 23, 2020 RX Yes Yes 9,090,562 ⤷  Get Started Free Y 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

International Family Members for US Patent 9,090,562

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 086008 ⤷  Get Started Free
Australia 2012242595 ⤷  Get Started Free
Brazil 112013026324 ⤷  Get Started Free
Brazil 122020006541 ⤷  Get Started Free
Canada 2832843 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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