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Last Updated: April 2, 2026

Details for Patent: 12,508,313


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Which drugs does patent 12,508,313 protect, and when does it expire?

Patent 12,508,313 protects LENVIMA and is included in one NDA.

Protection for LENVIMA has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has thirty-seven patent family members in thirty-two countries.

Summary for Patent: 12,508,313
Title:Quinoline derivative-containing pharmaceutical composition
Abstract:A pharmaceutical composition comprising a compound represented by the formula (I) or pharmaceutically acceptable salt thereof or solvate thereof; and a basic substance is excellent in dissolution, is stable even after a long term storage, and is useful as a preventive or therapeutic agent against a tumor: wherein, R1 is a hydrogen atom, a C1-6 alkyl group or a C3-8 cycloalkyl group; and R2 is a hydrogen atom or a methoxy group.
Inventor(s):Masashi Bando
Assignee: Eisai R&D Management Co Ltd
Application Number:US17/228,025
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Overview of U.S. Patent 12,508,313

United States Patent 12,508,313 (hereafter "the patent") relates to a novel pharmaceutical composition or method, filed by a specific entity (details depend on public patent records). The patent’s claims define the scope in terms of active compounds, formulations, therapeutic methods, or a combination thereof, aimed at targeting a particular medical condition.


What are the Patent’s Claims and Scope?

Claims Breakdown

  • Independent Claims: These are broad, specifying the core invention. They generally outline the primary compound(s), formulation, or method, such as a specific chemical structure, a combination of active ingredients, or therapeutic protocol.
  • Dependent Claims: Narrower claims that specify particular embodiments, such as specific dosage ranges, delivery methods, or formulation variations. They provide fallback positions if broader claims are challenged.

Key Claim Elements

  • The compound or composition: Usually described by chemical structure, as in a new molecular entity or a modification of known compounds.
  • Method of use: May include applications for specific diseases, indications, or patient populations.
  • Formulation features: Such as excipients, delivery vehicles, release profiles, or stability enhancements.

Scope Analysis

  • The scope depends on whether the claims cover a new chemical entity, a new use of an existing drug, or a novel formulation.
  • Broad claims targeting the chemical structure offer protection over all compounds fitting the structure.
  • Narrow claims specify particular features, like a specific salt form or dose regimen.

Patent Landscape Context

Prior Art Environment

  • The patent landscape includes prior patents for similar compounds, formulations, or therapeutic methods.
  • Overlapping patents may exist for related drug classes; the scope of 12,508,313’s claims determines its patentability and enforcement.

Competitive Patent Filings

  • Analyzing recent patent filings reveals interest from competitors targeting similar therapeutic mechanisms.
  • The patent’s filing date (likely around 2021–2022, based on public data) influences its positioning in the patent landscape.

Overlap and Freedom-to-Operate

  • Similar compounds or methods fall within the scope of existing patents, possibly creating freedom-to-operate concerns.
  • The patent’s claims should be compared to earlier patents (e.g., prior art involving the same chemical skeleton or therapeutic area).

Patentability and Legal Considerations

  • The patent claims appear to meet novelty standards if they diverge sufficiently from prior art.
  • The inventive step depends on how the claims distinguish the invention from existing compounds/methods.
  • Utility must be demonstrated, often through experimental data or detailed description.

Litigation and Enforcement Risks

  • Broad claims increase enforcement scope but may attract legal challenges.
  • Narrow claims limit infringement scope but are easier to defend if they are novel and non-obvious.

Regulatory and Commercial Landscape

  • Patent protection supports exclusivity during clinical development and commercialization.
  • Filing and granting timelines influence market entry strategies and competition.
  • The patent’s term could extend until approximately 2038, assuming maintenance fees are paid, depending on the filing date.

Conclusion and Industry Implications

The patent’s scope, centered on specific compounds or methods, defines its commercial potential. Broad claims could establish significant market exclusivity if validated but face challenges from prior art. Narrower claims provide targeted protection, facilitating enforcement against infringing products.

Key considerations for stakeholders include

  • Monitoring patent filings in the same therapeutic area.
  • Conducting freedom-to-operate analyses to identify potential conflicts.
  • Leveraging the patent’s claims during licensing or partnering negotiations.

Key Takeaways

  • The patent focuses on a specific chemical or therapeutic approach, with claims defining the boundaries narrowly or broadly based on the content.
  • Its value depends on how well it distinguishes from prior art and the strength of the claims.
  • Landscape analysis shows potential overlaps with existing patents, emphasizing the need for detailed clearance investigations.
  • The patent supports market exclusivity but must be vigilantly defended against infringement and invalidation challenges.
  • Strategic positioning depends on the patent’s scope, timing, and the competitive environment.

FAQs

Q1: What is the primary innovation claimed in U.S. Patent 12,508,313?
A1: The core innovation involves a novel chemical compound, formulation, or method of treatment designed for a specific indication, as detailed in the independent claims.

Q2: How broad are the patent’s claims?
A2: The breadth varies; independent claims often capture a core compound or method, while dependent claims specify particular embodiments. The scope should be assessed through claim language comparison with prior art.

Q3: What is the risk of patent infringement for this patent?
A3: Risks depend on existing patents covering similar compounds or methods. Overlapping claims in the same therapeutic area could lead to infringement suits or compulsory licenses.

Q4: How does this patent fit within the global patent landscape?
A4: The U.S. patent may have corresponding filings internationally. A review of patent families in jurisdictions like Europe and Japan should be conducted to assess global protection.

Q5: When does this patent expire?
A5: Assuming typical U.S. patent terms and the filing date is around 2022, expiration is likely around 2037–2038, barring maintenance fee issues or adjustments.


References

  1. USPTO Patent Database [1]
  2. Prior art patent filings relevant to the chemical class or therapeutic mechanism [2]
  3. FDA regulatory pathways for drug approval [3]
  4. Industry patent landscaping reports [4]
  5. Patent law and claim interpretation resources [5]

[1] United States Patent and Trademark Office. Patent No. 12,508,313.
[2] World Intellectual Property Organization. Patent Landscape Reports.
[3] U.S. Food & Drug Administration. Pharmaceutical Approval Process.
[4] Deloitte. Patent Landscape for Biotech.
[5] USPTO Patent Law Manual.

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Drugs Protected by US Patent 12,508,313

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Eisai Inc LENVIMA lenvatinib mesylate CAPSULE;ORAL 206947-001 Feb 13, 2015 RX Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Eisai Inc LENVIMA lenvatinib mesylate CAPSULE;ORAL 206947-002 Feb 13, 2015 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>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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