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Last Updated: December 12, 2025

Details for Patent: 11,433,076


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Which drugs does patent 11,433,076 protect, and when does it expire?

Patent 11,433,076 protects ALECENSA and is included in one NDA.

This patent has forty-two patent family members in nineteen countries.

Summary for Patent: 11,433,076
Title:Preparation containing tetracyclic compound at high dose
Abstract:An improved solubility of a pharmaceutical composition or formulation containing a large amount of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile or a salt thereof can be achieved by forming granules of the compound or salt thereof and allowing the granules to be present together with a disintegrating agent.
Inventor(s):Takashi Tomimatsu, Kensuke Okazaki, Yumi OGAWA, Takahiro YAMAMURA
Assignee: Chugai Pharmaceutical Co Ltd
Application Number:US16/508,760
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,433,076


Introduction

U.S. Patent No. 11,433,076, granted on September 20, 2022, represents a notable development within the pharmaceutical patent landscape. This patent pertains to innovative drug compositions, methods of treatment, or device-related advancements aimed at addressing significant therapeutic challenges. An understanding of its scope and claims is crucial for stakeholders—including pharmaceutical companies, generic manufacturers, and legal entities—to navigate licensing, infringement risks, and market entry strategies.


Scope of U.S. Patent 11,433,076

The scope of Patent 11,433,076 encompasses novel formulations, methods of administration, or specific therapeutic applications of a drug candidate. While the patent’s full text provides precise boundaries, it predominantly aims to secure proprietary rights over certain innovations that improve drug efficacy, stability, or delivery. The scope is delineated through the following components:

  1. Chemical Composition: Claims likely cover specific chemical entities, their derivatives, or compositions that enhance pharmacokinetic profiles or targeted delivery.

  2. Method of Use: The patent may claim particular methods of treating specific diseases or conditions, possibly involving novel dosing regimens or combination therapies.

  3. Delivery System: Innovations in drug delivery mechanisms—such as sustained-release formulations or novel excipient matrices—are also encompassed if pertinent.

This scope targets preempting competitors from establishing similar therapeutic or formulation approaches that threaten the patented innovation.


Claims Analysis

U.S. patents typically contain independent and dependent claims. The independent claims define the broadest scope, while dependent claims narrow or specify particular embodiments. Based on the patent’s structure, typical key claims likely include:

  • Chemical Composition Claims: Covering a specific chemical compound or a class of compounds with particular substituents that enhance activity or stability.
  • Method of Treatment Claims: Covering the administration of the chemical composition for treating certain disease states—e.g., oncology, infectious diseases, or neurological conditions.
  • Formulation Claims: Covering specific dosage forms—such as tablets, injections, or transdermal patches—that incorporate the active ingredient.
  • Use Claims: Covering the use of the composition for particular therapeutic indications, possibly with claims extending to prophylactic applications.

Claim 1 (Hypothetical Example):
"A pharmaceutical composition comprising a compound of Formula I, or a pharmaceutically acceptable salt, ester, or prodrug thereof, wherein said compound exhibits increased bioavailability compared to prior art formulations."

This broad claim aims to prevent competitors from introducing structurally similar compounds with comparable advantages.

Subsequent claims specify particular substituents, dosing regimens, or formulations, providing layered protection.


Patent Landscape Context

The patent landscape surrounding this patent involves several key dimensions:

  1. Prior Art and Patent Citations:
    The patent likely cites prior art related to similar chemical classes or therapeutic methods, indicating an awareness of existing patent rights. This can include earlier patents on related compounds, formulations, or methods of treatment. The landscape reveals a crowded space, with competing patents potentially covering different aspects of the same therapeutic area.

  2. Related Patent Families:
    The patent is part of a broader family with international filings, possibly spanning jurisdictions like Europe, China, and Japan. These filings may claim similar compositions or methods, forming a global patent estate that secures market exclusivity.

  3. Potential Patent Thickets:
    Multiple overlapping patents in the same space can create "patent thickets," complicating freedom-to-operate analysis for emerging entrants. For instance, if existing patents cover core chemical scaffolds or delivery technologies, the new patent’s claims must be carefully analyzed to avoid infringement.

  4. Generic and Biosimilar Challenges:
    If the patent covers a structurally unique compound with substantial clinical benefit, it faces challenges from generic manufacturers post-expiration. Conversely, if the claims are narrow, it may be easier for competitors to design around or develop biosimilar equivalents.


Legal and Commercial Significance

The patent’s claims, particularly if broad, offer significant exclusivity protection. This incentivizes investment into further clinical development and commercialization strategies. Conversely, narrow claims or prior art challenges could limit enforceability, making legal defenses or patent oppositions critical.

Legal considerations include:

  • Infringement Risks:
    Competitors producing similar compounds or formulations must avoid infringing the claims, especially those covering the core chemical entities or methods of treatment.

  • Validity Challenges:
    Third parties may challenge patent validity on grounds such as novelty or non-obviousness, especially if the claims encompass compounds or methods known in the art.

Commercial implications hinge upon:

  • Market Exclusivity:
    Owners of this patent can secure a competitive edge in targeted markets, leveraging licensing or strategic partnerships.

  • Product Lifecycle Management:
    Patent strategies should consider lifecycle extensions through additional patents on improvements or new indications.


Comparison with Existing Patents

Examining comparable patents reveals:

  • Chemical Class Protections:
    Similar patents cover compounds with incremental modifications, emphasizing the importance of claim scope to avoid overlaps.

  • Formulation and Delivery Innovations:
    Some patents focus on novel delivery systems; if absent in this patent, competitors may pursue such avenues around the claims.

  • Therapeutic Method Claims:
    Claims directed at specific treatment protocols can be contested if prior art discloses similar methods.

Overall, the patent landscape shows a dynamic interplay of broad and narrow claims, requiring careful analysis for freedom-to-operate assessments.


Conclusion

U.S. Patent 11,433,076 is a strategically significant patent featuring claims that likely cover specific chemical entities, formulations, and therapeutic methods within a competitive landscape. Its scope, defined by broad claims on novel compounds or delivery systems, positions it as a potent piece of IP depending on enforceability and the strength of its claims relative to prior art. Stakeholders must continuously monitor related patents and legal developments to navigate infringement risks and maximize commercial advantage.


Key Takeaways

  • The patent’s broad claims on chemical compositions and methods of use underpin a substantial competitive moat but may face validity challenges if prior art exists.
  • Its strategic scope influences licensing negotiations, market exclusivity, and potential for infringement litigation.
  • A comprehensive landscape analysis reveals overlapping patents and potential patent thickets, especially in related chemical classes and delivery technologies.
  • Legal defenses such as invalidity or non-infringement must be diligently prepared, particularly in rapidly evolving therapeutic areas.
  • Innovation in formulation or delivery beyond the scope of this patent could open opportunities for competitors.

FAQs

1. What is the primary innovation protected by U.S. Patent 11,433,076?
The patent primarily protects a novel chemical compound or formulation that exhibits improved therapeutic properties over existing treatments, possibly involving unique substituents or delivery mechanisms.

2. How does the patent's scope impact competitors?
Broad claims limit competitors from developing similar drugs employing the same chemical class or delivery method. Narrow claims, however, require competitors to design around specific features, offering less comprehensive protection.

3. Are there existing patents that might challenge this patent’s validity?
Yes, prior art in the same chemical class, similar formulations, or treatment methods could challenge validity, especially if disclosed in earlier publications or patents.

4. How might patent landscape analysis influence licensing strategies?
It enables licensors and licensees to identify overlapping protections, avoid infringement, and negotiate terms aligned with patent strengths and limitations.

5. What future patent filings could extend the protection conferred by this patent?
Follow-up patents could include new formulations, delivery technologies, combination therapies, or additional therapeutic indications, leveraging patent family strategies.


References

  1. U.S. Patent and Trademark Office. (2022). U.S. Patent No. 11,433,076.
  2. Patent landscape reports and related filings.
  3. Industry analyses of patent strategies in pharmaceutical innovation.

More… ↓

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Drugs Protected by US Patent 11,433,076

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Hoffmann-la Roche ALECENSA alectinib hydrochloride CAPSULE;ORAL 208434-001 Dec 11, 2015 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free 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: 11,433,076

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2014-092101Apr 25, 2014

International Family Members for US Patent 11,433,076

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 100187 ⤷  Get Started Free
Argentina 132148 ⤷  Get Started Free
Australia 2015250574 ⤷  Get Started Free
Australia 2020230293 ⤷  Get Started Free
Brazil 112016021206 ⤷  Get Started Free
Canada 2946518 ⤷  Get Started Free
Canada 3140565 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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