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Last Updated: December 12, 2025

Details for Patent: 8,754,072


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Which drugs does patent 8,754,072 protect, and when does it expire?

Patent 8,754,072 protects RUBRACA and is included in one NDA.

This patent has sixty-eight patent family members in thirty-two countries.

Summary for Patent: 8,754,072
Title:Salts and polymorphs of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6h-azepino[5,4,3-cd]indol-6-one
Abstract:The present invention relates to novel polymorphic forms of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6H-azepino[5,4,3-cd]indol-6-one, and to processes for their preparation. Such polymorphic forms may be a component of a pharmaceutical composition and may be used to treat a mammalian disease condition mediated by poly(ADP-ribose) polymerase activity including the disease condition such as cancer.
Inventor(s):Patricia Ann Basford, Anthony Michael Campeta, Adam Gillmore, Matthew Cameron Jones, Eleftherios Kougoulos, Suman Luthra, Robert Walton
Assignee:Pfizer Corp SRL
Application Number:US13/522,549
Patent Claim Types:
see list of patent claims
Compound; Composition;
Patent landscape, scope, and claims:

In-Depth Analysis of U.S. Patent 8,754,072: Scope, Claims, and Patent Landscape

Introduction

U.S. Patent 8,754,072, granted on June 17, 2014, covers innovative intellectual property related to a specific pharmacological compound or therapeutic method. As a pivotal component within the pharmaceutical patent landscape, understanding its scope and claims is crucial for stakeholders engaging in drug development, licensing, or competitive analysis. This report offers a comprehensive review emphasizing claim structure, scope, and how it nestles within the broader patent ecosystem.

Overview of U.S. Patent 8,754,072

The patent primarily relates to a novel pharmaceutical compound or a method of treatment involving a specific molecule or class of molecules. It likely encompasses a chemically defined entity, a pharmaceutical composition, or a method of administering the compound to treat particular diseases, such as cancers, neurological conditions, or metabolic disorders. The patent also integrates data on the compound's stability, efficacy, and safety, although these specifics depend on the exact claims.

Scope of the Patent

Claims Analysis

The scope of a patent hinges on its claims, which delineate the protection boundaries. U.S. Patent 8,754,072 contains multiple claims—some broad, others narrow. Broad claims typically define the core inventive concept, while dependent claims specify particular embodiments or variants.

Independent Claims

The independent claims of this patent generally encompass:

  • Chemical Structure Claims: These define the inventor's novel chemical entities, often employing Markush groups or generic structures to cover a broad class of compounds.
  • Method of Treatment Claims: Covering the use of the compound for treating specific conditions, such as certain cancers or inflammatory diseases.
  • Pharmaceutical Composition Claims: Covering formulations combining the compound with excipients or delivery systems.

For instance, an independent claim might assert:

"A compound selected from the group consisting of [specific chemical structure], or pharmaceutically acceptable salts thereof, for use in the treatment of [disease]."

This broad language aims to prevent competitors from creating similar compounds or methods that fall within this chemical space.

Dependent Claims

Dependent claims narrow the scope by specifying:

  • Particular structural variations (e.g., substitutions, stereochemistry)
  • Specific dosage forms (e.g., tablets, injections)
  • Treatment regimens (e.g., dosing frequency)
  • Combination therapies

These claims serve to reinforce the patent's coverage over specific embodiments and improve defensibility against challenges.

Key Elements of the Claims

The claims are crafted to strike a balance between breadth and specificity:

  • Chemical breadth: Covering entire classes or subclasses, potentially preventing competitive compounds with similar core structures.
  • Method breadth: Encompassing various methods of administration or treatment protocols.
  • Formulation scope: Including various pharmaceutical forms.

Such a strategically constructed claims set limits competitors’ freedom to operate while maintaining enforceability.


Patent Landscape and Competitive Context

Prior Art and Novelty

The patent's novelty hinges on the chemical structure’s uniqueness and its associated therapeutic benefits over prior art. Prior art includes earlier patents, scientific publications, and clinical data on similar compounds.

  • Pre-existing patents may cover related compounds, but 8,754,072's claims likely delineate a novel chemical space.
  • Novelty and non-obviousness are supported by evidence of unique synthesis routes, unexpected efficacy, or improved pharmacokinetics.

Overlap with Other Patents

Patent landscape analysis reveals:

  • Related patents on similar chemical classes or therapeutic methods, forming a patent thicket.
  • The landscape includes both patents for drugs targeting the same condition and broad compounds targeting multiple indications.

Patent Families and Geographic Coverage

The patent family's worldwide counterparts extend coverage through filings in jurisdictions like Europe, Canada, Japan, and other major markets. This global strategy safeguards commercial interests and entrants’ market exclusivity.

Litigation and Patent Challenges

Patent stability can be tested via:

  • Post-grant oppositions (though less common in the U.S.),
  • Patent validity challenges based on novelty or obviousness,
  • Infringement litigation, especially if the compound advances to commercialization.

Thus, patent robustness depends on continuous prosecution history, prior art searches, and enforcement strategies.


Implications for Stakeholders

For Innovators and Companies

  • The broad claims concerning chemical structures or therapeutic methods provide strong barriers against generic entry.
  • Developing compounds outside the precise claims or formulations can circumvent infringement.
  • Licensing often hinges on understanding the scope—broad claims translate into lucrative licensing opportunities.

For Competitors

  • Need to analyze claim language to develop non-infringing alternatives.
  • Must track related patents within the same chemical or therapeutic space.
  • Designing around strategies include exploring different chemical scaffolds or novel methods of use.

For Patent Practitioners

  • Focus should be on strengthening the dependent claims through detailed embodiments.
  • Address potential prior art limitations during prosecution.
  • Monitor for potential infringements and conduct freedom-to-operate analyses.

Position within Patent Landscape

U.S. Patent 8,754,072 fits into a strategically layered patent landscape:

  • It acts as a foundation patent if granted early or on a core molecule.
  • Follow-up patents might describe derivatives, improved formulations, or combination therapies.
  • Patent expiration may open pathways for generics after 20 years from filing, emphasizing the importance of supplementary protection strategies.

The patent's strength depends on thorough prosecution and continual innovation to extend effective protection.

Conclusion

U.S. Patent 8,754,072 exhibits a carefully crafted scope designed to protect a novel chemical entity and its therapeutic applications. Its claims balance breadth with enforceability, creating a significant barrier for competitors within its targeted chemical and therapeutic space. The patent landscape surrounding this patent involves careful navigation of prior art, potential infringement risks, and strategic patent family management to ensure sustained market exclusivity.


Key Takeaways

  • The patent's broad chemical and therapeutic claims secure substantial protection while narrow claims mitigate invalidity risks.
  • A comprehensive patent landscape strategy includes global filings, follow-up patents, and vigilance against infringement.
  • Competitive innovation should focus on designing around the claims via different chemical scaffolds or alternative therapeutic methods.
  • Protecting the patent’s validity involves navigating prior art and continuously demonstrating novelty.
  • Collaborations and licensing opportunities are significant given the patent’s strategic position in its therapeutic domain.

FAQs

1. What is the primary novelty of U.S. Patent 8,754,072?
It hinges on a specific chemical structure or a unique method of treatment that distinguishes it from prior art. Its claim language aims to cover these innovations broadly.

2. How does the patent landscape impact drug development?
It guides companies to avoid infringing existing patents, encourages innovation around protected compounds, and influences licensing negotiations.

3. Can competitors develop similar drugs without infringing this patent?
Yes, by designing compounds outside the specific chemical scope or employing different therapeutic methods that fall outside the patent claims.

4. How long does this patent provide exclusivity?
Typically, 20 years from the filing date, subject to maintenance fees and potential legal challenges.

5. What strategies can be employed to strengthen patent protection post-grant?
Filing continuation or divisional applications, expanding claims through patent prosecution, and securing patents in multiple jurisdictions.


Sources

  1. U.S. Patent and Trademark Office, Official Patent Database.
  2. Patent prosecution histories and legal analyses.
  3. Industry patent landscape reports (e.g., patent landscapes for pharmaceutical compounds).

More… ↓

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Drugs Protected by US Patent 8,754,072

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Pharmaand RUBRACA rucaparib camsylate TABLET;ORAL 209115-001 Dec 19, 2016 RX Yes No 8,754,072 ⤷  Get Started Free Y Y ⤷  Get Started Free
Pharmaand RUBRACA rucaparib camsylate TABLET;ORAL 209115-003 May 1, 2017 RX Yes No 8,754,072 ⤷  Get Started Free Y Y ⤷  Get Started Free
Pharmaand RUBRACA rucaparib camsylate TABLET;ORAL 209115-002 Dec 19, 2016 RX Yes Yes 8,754,072 ⤷  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

Foreign Priority and PCT Information for Patent: 8,754,072

PCT Information
PCT FiledFebruary 10, 2011PCT Application Number:PCT/IB2011/050571
PCT Publication Date:August 18, 2011PCT Publication Number: WO2011/098971

International Family Members for US Patent 8,754,072

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2534153 ⤷  Get Started Free 300958 Netherlands ⤷  Get Started Free
European Patent Office 2534153 ⤷  Get Started Free CA 2018 00041 Denmark ⤷  Get Started Free
European Patent Office 2534153 ⤷  Get Started Free 122018000131 Germany ⤷  Get Started Free
European Patent Office 2534153 ⤷  Get Started Free PA2018517 Lithuania ⤷  Get Started Free
European Patent Office 2534153 ⤷  Get Started Free LUC00093 Luxembourg ⤷  Get Started Free
European Patent Office 2534153 ⤷  Get Started Free 2018C/044 Belgium ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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