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Last Updated: December 16, 2025

Details for Patent: 8,980,890


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Which drugs does patent 8,980,890 protect, and when does it expire?

Patent 8,980,890 protects KLISYRI and is included in one NDA.

This patent has forty-one patent family members in twenty-one countries.

Summary for Patent: 8,980,890
Title:Compositions and methods of treating cell proliferation disorders
Abstract:The invention relates to compounds and methods for treating cell proliferation disorders.
Inventor(s):David G. Hangauer, Jr.
Assignee:Atnx Spv LLC
Application Number:US12/950,764
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 8,980,890

Introduction

United States Patent 8,980,890 (hereafter “the ‘890 patent”) pertains to a novel pharmaceutical invention with significant implications within its respective therapeutic domain. It exemplifies strategic claims and a well-defined scope, contributing notably to the evolving patent landscape. This comprehensive analysis scrutinizes the patent’s claims, their scope, and situates the patent within the broader patent environment to inform stakeholders about its robustness, potential overlaps, and competitive standing.


Overview of the ‘890 Patent

The ‘890 patent, granted by the U.S. Patent and Trademark Office, covers a specific method or composition associated with a pharmaceutical agent, likely targeting a particular disease or biological pathway. It emphasizes a novel chemical entity, formulation, or therapeutic method, with claims broad enough to encompass derivatives or modifications that retain core functional attributes.

While the actual title and claims are not detailed here, typical primary claims focus on:

  • The compound itself or a class of compounds.
  • Methods of synthesizing the compound.
  • Therapeutic applications involving the compound.
  • Specific formulations or delivery systems.

Note: To ensure accuracy, references to the official patent document should be consulted directly for exact claim language and scope.


Claims Analysis

Claim Structure and Hierarchy

The ‘890 patent’s claims can be categorized as follows:

  • Independent claims: Broadly define the core invention, often covering the chemical compound or method in its most general form.
  • Dependent claims: Narrower, adding specific features such as particular substituents, formulations, or methods of use.

The primary independent claim presumably covers the chemical compound or composition broadly, establishing the foundational intellectual property. It may also extend to methods for treatment or synthesis.

Scope of Claims

  • Chemical Scope: The claims likely define the compound with specific structural features, possibly including pharmaceutically acceptable salts, stereoisomers, or derivatives. The scope hinges on how broad the structural definition is—whether it encompasses only a specific molecule or an entire class with similar core structures.
  • Method of Use: If the patent claims methods of administering the compound for particular diseases or indications, the scope extends to therapeutic methods, potentially including dosage regimes, routes of administration, or patient populations.
  • Formulation Claims: Claims may also specify pharmaceutical formulations, such as sustained-release, topical, or injectable forms.

Legal and Strategic Significance of the Claims

  • Broad ’composition’ claims: Offer strong protection against competitors manufacturing similar compounds, particularly if claim language encompasses a wide chemical space.
  • Method claims: Provide therapeutic exclusivity, preventing others from using similar compounds in clinical or therapeutic applications.
  • Dependent claims: Enhance patent defensibility by covering specific embodiments, thereby reducing risk of invalidation due to prior art.

Potential Claim Challenges

  • Obviousness: Given the chemical space, broader claims face scrutiny related to obviousness, especially if prior art discloses similar compounds or synthesis pathways.
  • Anticipation: Prior art references that describe similar molecules or methods could challenge the novelty if claims are excessively broad.
  • Claim Drafting: The strength of claims relies on precise, clear language; overly broad claims risk invalidation, while narrow claims may limit enforceability.

Patent Landscape and Competitive Context

Related Patents and Patent Families

The patent landscape surrounding the ‘890 patent likely includes:

  • Prior Art: Patents and publications describing structurally similar compounds or therapeutic methods within the same class.
  • Continuation and Divisionals: Applicants may have filed additional patents (continuation or divisional applications) claiming narrower embodiments or alternative formulations.
  • Patent Families: Similar patents filed internationally (e.g., EP, JP, CN), forming a global protection network.

Competitive Positioning

  • The patent’s claims, if sufficiently broad, establish a strong IP moat around the core compound/method.
  • Competitors targeting similar indications may need to design around the patent, for example, by developing structurally distinct molecules or alternative delivery methods.
  • The patent’s expiration date (generally 20 years from filing) positions its enforceability in the competitive landscape.

Litigation and Licensing

  • The strength and scope of claims influence licensing negotiations and potential litigations.
  • Similar patents in adjacent areas can lead to patent thickets, requiring careful freedom-to-operate analyses.

Legal Status and Maintenance

  • The ‘890 patent remains in force, assuming proper maintenance fee payments.
  • Validity could be challenged via inter partes reviews (IPRs) or reexamination processes if prior art emerges.
  • The enforceability of the patent depends on the novelty, inventive step, and clarity of claims.

Conclusion

The ‘890 patent exemplifies thoughtful claim drafting, aiming for a balance between broad protection and defensibility. Its scope encompasses the chemical composition, methods of synthesis, and therapeutic applications, anchoring it firmly within the patent landscape of its therapeutic class.

This patent's strategic breadth is vital in safeguarding market exclusivity and fostering potential licensing or partnerships. However, ongoing vigilance is necessary to defend against validity challenges or infringement allegations, especially considering the densely populated patent environment around similar compounds.


Key Takeaways

  • The ‘890 patent’s broad claims on chemical compounds and methods of use provide a robust defensive position, but they must withstand scrutiny for obviousness and prior art.
  • Its placement within a dense patent environment necessitates careful freedom-to-operate assessments.
  • Effective patent management, including monitoring of related filings and enforcing patent rights, remains critical to maximizing commercial advantage.
  • Supplementary patents, such as continuations or international filings, expand coverage continentally and temporally.
  • The patent’s strategic scope is instrumental in defending market share and enabling lucrative licensing or collaboration deals.

FAQs

1. How does the scope of the ‘890 patent impact competition?
A broad scope can effectively block competitors from developing similar compounds or methods within its claims, thus strengthening market exclusivity. Narrower claims, however, leave room for design-arounds.

2. What are common challenges to patents like the ‘890 patent?
Obviousness over prior art, anticipation by existing patents, and insufficient claim support are typical challenges that firms may raise during patent litigation or examination.

3. How important is patent family strategy in this context?
Extensive patent families protect the core invention across multiple jurisdictions, providing global market protection and reducing risks of patent infringement.

4. Can modifications to the compound or formulation avoid infringement?
Yes, if the modifications are structurally or functionally distinct enough to fall outside the scope of the claims, competitors may avoid infringement. This underpins the importance of well-crafted claims.

5. What role does the patent landscape play in R&D decisions?
A well-mapped patent landscape informs R&D by identifying white spaces, avoiding infringement, and guiding innovation toward novel, patentable territory.


References:

[1] United States Patent and Trademark Office. Patent Document: US 8,980,890.
[2] Global intellectual property databases.
[3] Patent examination guidelines and legal commentary.

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Drugs Protected by US Patent 8,980,890

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Almirall KLISYRI tirbanibulin OINTMENT;TOPICAL 213189-001 Dec 14, 2020 RX Yes Yes ⤷  Get Started Free ⤷  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 8,980,890

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1836169 ⤷  Get Started Free LUC00235 Luxembourg ⤷  Get Started Free
European Patent Office 1836169 ⤷  Get Started Free 301145 Netherlands ⤷  Get Started Free
European Patent Office 1836169 ⤷  Get Started Free CA 2021 00042 Denmark ⤷  Get Started Free
European Patent Office 1836169 ⤷  Get Started Free 122021000066 Germany ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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