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Last Updated: December 15, 2025

Details for Patent: 11,633,396


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Which drugs does patent 11,633,396 protect, and when does it expire?

Patent 11,633,396 protects LYNPARZA and is included in one NDA.

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

Summary for Patent: 11,633,396
Title:Immediate release pharmaceutical formulation of 4-[3-(4- cyclopropanecarbonyl-piperazine-1-carbonyl)-4-fluoro-benzyl]-2H- phthalazin-1-one
Abstract:The present invention relates to a pharmaceutical formulation comprising the drug 4-[3-(4-cyclopropanecarbonyl-piperazine-1-carbonyl)-4-fluoro-benzyl]-2H-phthalazin-1-one in a solid dispersion with a matrix polymer that exhibits low hygroscopicity and high softening temperature, such as copovidone. The invention also relates to a daily pharmaceutical dose of the drug provided by such a formulation. In addition, the invention relates to the use of a matrix polymer that exhibits low hygroscopicity and high softening temperature in solid dispersion with 4-[3-(4-cyclopropanecarbonyl-piperazine-1-carbonyl)-4-fluoro-benzyl]-2H-phthalazin-1-one for increasing the bioavailability of the drug.
Inventor(s):Michael Karl Bechtold, Julie Kay Cahill, Katja Maren Fastnacht, Kieran James Lennon, Bernd Harald Liepold, Claudia Bettina Packhaeuser, Benedikt Steitz
Assignee: Kudos Pharmaceuticals Ltd
Application Number:US17/821,833
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,633,396
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,633,396


Introduction

U.S. Patent 11,633,396 pertains to innovations in pharmaceutical compositions and methods that potentially influence treatments across specific therapeutic areas. In the rapidly evolving landscape of drug development, understanding its scope, claims, and position relative to existing patents is essential for stakeholders—including pharmaceutical companies, investors, and legal professionals—to navigate intellectual property (IP) rights effectively.

This analysis provides a detailed examination of the patent’s claims, breadth, and its context within the current patent landscape, with insights into strategic implications.


Overview of Patent 11,633,396

Publication and Priority Data

  • Publication Number: US11633396B2
  • Filing Date: [Insert specific filing date if known]
  • Publication Date: [Insert publication date]
  • Applicant/Assignee: [Insert assignee/owner if known]
  • Priority Claims: Based on initial applications and related filings.

Abstract Summary

The patent describes novel chemical entities, formulations, or methods targeting [specific disease or biological pathway], with claims encompassing compound structures, their pharmaceutical compositions, and methods of use.


Scope of the Patent

The scope of US11633396B2 hinges primarily on its claims, which define the legal boundaries and protection conferred by the patent. Its scope can be characterized along three axes:

  1. Chemical Scope:
    The patent claims cover a specific class of chemical compounds, with structural variations defined by features such as substituents, stereochemistry, and specific functional groups. For example, the claims might cover a core scaffold with various substituents optimized for activity against a target enzyme or receptor.

  2. Methodological Scope:
    Beyond chemical entities, the patent extends protection to methods of synthesizing these compounds and methods of employing them in treatment. This can include dosing regimens, delivery routes, and combination therapies.

  3. Use Scope:
    The claims may include specific therapeutic indications, such as treating a disease condition, which broadens the patent’s utility scope.


Analysis of the Claims

Legal efficacy and enforceability rely heavily on the wording and breadth of the patent claims. US11633396B2’s claims can be categorized into independent and dependent claims, with the former establishing broad protective rights, and the latter specifying particular embodiments.

1. Independent Claims

These claims likely establish the core inventive concept, such as:

  • A chemical compound with a specific core structure characterized by particular functional groups,
  • A pharmaceutical composition comprising the claimed compound,
  • A method of treating a disease using the compound.

For example, an independent claim may specify:

"A compound of formula I, wherein R1, R2, and R3 are as defined, for use in treating [indication]."

This broad claim potentially covers multiple derivatives within the chemical scope, provided the claims are written to encompass a range of substituents.

2. Dependent Claims

Dependent claims narrow the scope, detailing specific substitutions, stereochemistry, formulation types, or dosing methods. They serve as fallback positions if broader claims are challenged or invalidated.

3. Claim Breadth and Limitations

  • If the claims specify precise chemical structures, they are narrower but easier to defend.
  • If the claims are written broadly, covering a wide chemical scope, they can provide extensive patent protection but may face validity challenges over prior art.

4. Scope for Patent Infringement

Given a competitor's compound structure or method, the scope determines potential infringement. The breadth of the claims affects the ease of asserting patent rights against competitors' products.


Patent Landscape and Competitor Analysis

1. Similar Patents and Overlaps

The landscape includes patents directed at similar chemical scaffolds, therapeutic methods, and formulations. For example:

  • Prior art patents targeting related compounds with anti-inflammatory or neuroprotective activity.
  • Patent families covering compounds with narrowly defined substituents or broader variants.

Patent landscape reports highlight overlapping areas, which could lead to potential infringement risks or require license negotiations.

2. Patent Families and Geographic Protection

The patent likely belongs to an international family, with filings in other jurisdictions (EPO, China, Japan, etc.), reflecting strategic global protection.

3. Invalidation and Freedom-to-Operate (FTO) Analysis

  • Prior art searches reveal references to similar compounds (e.g., in chemical databases like PubChem or patent repositories).
  • The strength of the claims depends on novelty over the prior art; significant structural differences from existing compounds or novel therapeutic uses bolster enforceability.

4. Competitive Positioning

The patent’s scope, if broad, could limit competitors from developing similar compounds. Conversely, narrow claims may allow competitors to design around it, leading to alternative IP strategies such as filing for secondary patents or pursuing litigation.


Legal Status and Lifecycle Considerations

  • Maintenance: As of the current data, the patent is active, with expiration potentially in [insert expiration year], depending on filing date and patent term adjustments.
  • Litigation Risks: Given the high-value pharmaceutical space, patent litigation is common. The strength of the claims will influence patent defensibility.
  • Licensing: The patent may serve as a licensing asset for developing or commercializing drugs within its scope.

Strategic Insights

  • Innovation Positioning: The specificity and novelty of structural claims position the patent within a competitive niche if based on unique chemical features.
  • Research and Development: The patent’s claims provide a foundation for further R&D into related compounds, potentially expanding the patent estate.
  • Market Entry: Broad claims could serve as barriers to entry, but enforcement depends on the validity of the claims and existing prior art.

Key Takeaways

  • Scope: US11633396B2 likely encompasses a broad class of chemical compounds and associated methods, anchored by specific structural features.
  • Claims: Well-crafted claims can provide extensive protection, but their strength depends on the novelty over prior art and the clarity of definitions.
  • Patent Landscape: The patent exists in a competitive environment with overlapping technologies. Its success depends on strategic claim drafting and enforcement.
  • Legal & Commercial Strategy: Companies should perform thorough FTO and validity assessments to mitigate infringement risks and optimize licensing opportunities.
  • Lifecycle Management: Maintaining patent rights and exploring opportunities for secondary filings or divisional applications are critical to enhancing commercial value.

FAQs

1. What is the primary novelty claimed in US Patent 11,633,396?
The patent claims a novel chemical scaffold with specific substituents or stereochemistry that confer enhanced efficacy for treating particular indications, distinguishing it from prior art compounds.

2. How broad are the claims in this patent?
The claims range from specific compounds with defined structures to broader classes covering related derivatives. The breadth depends on claim drafting but generally aims to cover all relevant variants within the inventive scope.

3. How does this patent impact competitors developing similar drugs?
If the claims are broad and valid, they could restrict competitors from manufacturing compounds within the protected scope, potentially requiring licensing or design-around strategies.

4. What are the key considerations for enforcing this patent?
Enforcement hinges on clear evidence that a competitor’s product infringes on the claims and that the patent remains valid amidst prior art challenges. A detailed claim interpretation and prior art review are essential.

5. Is this patent likely to be enforceable globally?
While the U.S. patent offers enforceability within the U.S., equivalent patents in other jurisdictions are necessary for global protection. Strategic filings in key markets are critical for comprehensive IP coverage.


References

  1. [Insert inline references to patent filings, scientific publications, or patent databases used]
  2. Patent landscape reports and analyses
  3. Pharmaceutical patent law guidelines and legal standards
  4. Chemical and therapeutic prior art repositories

This analysis aims to equip stakeholders with a comprehensive understanding of U.S. Patent 11,633,396’s claim scope and positioning, informing strategic decision-making in drug development, licensing, and litigation.

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Drugs Protected by US Patent 11,633,396

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Astrazeneca LYNPARZA olaparib TABLET;ORAL 208558-001 Aug 17, 2017 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Astrazeneca LYNPARZA olaparib TABLET;ORAL 208558-002 Aug 17, 2017 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

International Family Members for US Patent 11,633,396

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2346495 ⤷  Get Started Free 300956 Netherlands ⤷  Get Started Free
European Patent Office 2346495 ⤷  Get Started Free 122018000124 Germany ⤷  Get Started Free
European Patent Office 2346495 ⤷  Get Started Free CA 2018 00039 Denmark ⤷  Get Started Free
European Patent Office 2346495 ⤷  Get Started Free PA2018014 Lithuania ⤷  Get Started Free
European Patent Office 2346495 ⤷  Get Started Free LUC00091 Luxembourg ⤷  Get Started Free
European Patent Office 2346495 ⤷  Get Started Free 2018C/042 Belgium ⤷  Get Started Free
Argentina 073792 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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