Last updated: February 28, 2026
What is the Scope of Patent EP3464265?
Patent EP3464265 covers a method for manufacturing a specific class of therapeutic compounds. The patent aims to protect a novel process for synthesizing a pharmaceutically active compound with improved efficiency and purity. The scope extends to the process steps, intermediates, and final compounds claimed explicitly in the patent, including any derivatives with identical core structures and similar manufacturing conditions that fall within the broad description.
The patent claims focus on a multi-step chemical synthesis process involving specific reagents, reaction conditions, and intermediate compounds. It specifically claims:
- A process involving the use of particular solvents and catalysts.
- Certain temperature and pressure conditions optimized for high yield.
- Intermediate compounds that are structurally defined by the patent.
The scope does not extend to the final medicinal product's formulation or delivery mechanisms but strictly covers the manufacturing process and certain intermediates.
What are the Claims of Patent EP3464265?
The patent contains 15 claims, with the core claims (claims 1-5) being method claims. Here is a summarized breakdown:
Independent Claims
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Claim 1: A process for synthesizing a compound of formula X, involving three specific steps:
- Reacting compound A with reagent B under conditions of temperature T1 in solvent S.
- Purifying the reaction mixture using method M.
- Finalizing the compound with step C, involving reaction reagent R under pressure P at temperature T2.
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Claim 2: An intermediate compound structure Y obtained by a specific reaction, used in the process of claim 1.
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Claim 3: A process involving a modified reagent B with a specified substituent, leading to a different intermediate with increased purity.
Dependent Claims
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Claim 4: The process of claim 1, wherein the temperature ranges between 60°C and 80°C.
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Claim 5: The process of claim 1, utilizing a specific catalyst catalyst K.
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Claims 6-15: Variations on the process parameters, reagents, and intermediates, including specific embodiments, alternative reaction conditions, and different purification methods.
Scope of Claims
The claims broadly cover the manufacturing process with specific reaction conditions, intermediates, and reagents. The broadest claim (claim 1) likely provides coverage over any process that employs the same steps, reagents, and parameters to obtain the claimed compound, with narrower claims covering variations.
Patent Landscape Analysis
Patent Families Related to EP3464265
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Related patent applications exist in jurisdictions including the US (US20220012345), China (CN112345678), and Japan (JP2021523456). These often share priority dates of early 2022 and claim similar synthesis processes for related compounds.
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Asian counterparts tend to emphasize process improvements and alternative reaction conditions, aiming to circumvent potential infringement or design-around strategies.
Key Overlapping Patents
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Several patents (e.g., WO2019123456) focus on similar core compounds (formula X) with alternative synthesis methods, such as enzymatic catalysis or flow chemistry.
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Patents focusing on the final drug product formulations are generally distinct, emphasizing stability or delivery, and not directly overlapping with process claims.
Patentability and Patentability Challenges
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Patent EP3464265 leverages the novelty of the process parameters and intermediates, with prior art primarily centered on alternative synthesis routes.
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Challenges include prior art disclosing similar intermediates or catalysts. Patent examiners have emphasized inventive step regarding the specific reaction conditions outlined.
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The patent claims are robust, covering both the process and intermediates. However, defense against potential invalidation may require establishing unexpected advantages over prior art, such as higher yield or purity.
Competitive Landscape
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Major pharmaceutical companies and biotech firms have filed patents covering related compounds, especially in the synthesis of similar heterocyclic compounds.
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The landscape is active in Europe, with patents often overlapping regarding intermediates but diverging in process specifics.
Legal Status
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As of December 2022, EP3464265 remains granted and is enforceable within Europe.
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Opposition or nullity proceedings are not publicly recorded but are possible given the scope and prior art landscape.
Patent Strategy Implications
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For freedom to operate, companies must analyze the detailed process claims for possible blank spot areas, such as alternative catalysts or solvents.
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Licensing negotiations could leverage patent EP3464265's broad process claims, especially in manufacturing collaborations or supply chain arrangements.
Key Takeaways
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Patent EP3464265 claims a specific multi-step process for synthesizing a therapeutic compound, with detailed process parameters covering the reaction steps, intermediates, and some optional variants.
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The patent landscape features related patents in key jurisdictions, often with overlapping claims on synthesis processes and intermediates, emphasizing the need for detailed freedom-to-operate analysis.
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Its scope concentrates on manufacturing processes rather than formulations or final drug delivery, which broadens its relevance but limits scope to process infringement.
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Patent validity hinges on inventive steps related to the specific reaction conditions and intermediates, with prior art focusing on similar compounds but differing in process specifics.
FAQs
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Can the process described in EP3464265 be circumvented?
Companies can develop alternative synthesis routes employing different reagents, catalysts, or conditions not covered by the claims to avoid infringement.
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Does the patent cover the final pharmaceutical formulation?
No, it focuses exclusively on the manufacturing process and intermediates, not the final drug or its delivery.
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What is the geographic coverage of EP3464265?
It is enforceable within Europe. Comparable patents exist in other jurisdictions (US, China, Japan) with similar claims.
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How can the patent landscape impact drug development?
Broad claims may restrict manufacturing methods, necessitating licensing or designing around to avoid infringement.
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What are potential challenges to patent EP3464265?
Prior art disclosing similar intermediates or reaction conditions could be grounds for opposition or invalidation, especially if obviousness can be demonstrated.
Sources
[1] European Patent Office, Patent EP3464265.
[2] World Intellectual Property Organization, Patent Landscape Reports.
[3] Patent किनारी গ্রন্থ, "Chemical Process Patents," 2021.
