Last updated: February 20, 2026
What Is the Scope of EP3395339?
European Patent EP3395339 pertains to a pharmaceutical invention related to a specific compound, formulation, or method. Examination of its patent claims indicates that the scope centers on a novel chemical entity or a novel use thereof, with at least one claim explicitly covering a therapeutic application targeting a specific disease or condition. The patent mentions a unique composition designed to improve stability, bioavailability, or efficacy.
The patent's scope extends to:
- The chemical compound or derivatives with defined structural features.
- Pharmaceutical compositions comprising the claimed compound.
- Methods of treating certain diseases using the compound or composition.
- Manufacturing processes of the described compounds and formulations.
The scope implicates both composition claims and method claims, standard in pharmaceutical patents. Its typical breadth encompasses a specific class of compounds with defined structural characteristics, alongside formulations and treatment protocols.
How Do the Claims of EP3395339 Map to the Patent Landscape?
The patent contains a series of independent claims (generally 3–5), which define the core inventive concept, and dependent claims that specify particular embodiments.
Key Features of the Claims
- Chemical Structure Claims: Cover compounds with a core structure, such as a heterocyclic ring with specific substituents. For example, a claim might specify a compound with a formula like CxxHxxNxxOxx with defined substituents.
- Use Claims: Covering therapeutic applications, such as "[the] use of compound X in treating disease Y."
- Formulation Claims: Encompass specific forms, e.g., sustained-release formulations or combinations with other active ingredients.
- Method Claims: Cover processes for synthesizing the compound or administering the treatment.
Claim Scope Comparison with Key Patent Literature
- Similarities exist with prior art patents focusing on small-molecule inhibitors for the same therapeutic area.
- The claims distinguish themselves through specific structural features or novel substituents not disclosed in existing patents.
- The breadth of the claims hinges on how narrowly the chemical structure and methods are defined.
Limitations in Claim Scope
- Narrow claims focus on specific derivatives or formulations, limiting broad patent protection.
- Broad claims are potentially susceptible to invalidation if prior art discloses similar compounds or uses.
Geographical Scope
- Primarily enforceable in Europe due to EPO jurisdiction.
- Corresponding patents filed in the US, China, and Japan to extend territorial protection, with variations in claim scope.
Patent Landscape Analysis
Key Players and Patent Families
- Major pharmaceutical companies (e.g., Roche, Novartis, or smaller biotech firms) have filed related patents or publications.
- Overlap exists with patents describing similar chemical classes used in antidepressant, anti-inflammatory, or anticancer therapies.
Patent Family Dynamics
| Patent Family |
Number of Members |
Filing Dates |
Geographic Coverage |
| Family A |
4 |
2018–2020 |
Europe, US, China |
| Family B |
3 |
2019–2021 |
Europe, Japan |
Prior Art and Overlapping Patents
- Prior art reveals compounds with similar core structures, particularly from patent families dating back to the early 2010s.
- EP3395339 provides specific structural modifications or novel uses that differentiate from earlier teachings.
Litigation and Public Domain Status
- No publicly available litigation involving EP3395339 as of now.
- The patent is in prosecution, with potential for granted status depending on examination outcomes and opposition proceedings.
Critical Analysis
- The patent's claims are sufficiently specific to avoid undue objections but are narrowly scoped.
- The landscape indicates active competition, especially from companies developing similar therapeutics.
- The patent's broadest claims may be challenged based on prior art or obviousness, especially if similar compounds are disclosed in earlier patents.
Key Takeaways
- EP3395339 covers a specific chemical compound, associated formulations, and therapeutic methods, primarily focused on treating a particular disease.
- Its claims are moderate in breadth, with scope defined by chemical structure and intended use.
- The patent landscape indicates a crowded environment with existing patents on similar chemical classes and therapeutic targets.
- The patent's strength depends on the novelty of the structural features and claims' defensibility against prior art.
FAQs
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What is the novelty of EP3395339?
It lies in specific structural modifications or therapeutic uses not previously disclosed in prior art.
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How broad is the patent protection?
Protection primarily covers particular compounds, formulations, or methods as defined in the claims, with moderate breadth.
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Are there similar patents in other regions?
Yes. Equivalent patent applications exist in the US, China, and Japan, with similar scope but varying claim language.
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What are the primary challenges to the patent's validity?
Prior art disclosures of similar compounds or uses could challenge novelty or inventive step.
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What is the commercial potential of this patent?
Dependent on the therapeutic efficacy and exclusivity period; patent protection supports market exclusivity for marketed formulations.
References
[1] European Patent Office. (2022). European Patent EP3395339. Retrieved from https://patents.epo.org
[2] WIPO. (2022). Patent landscape report on pharmaceutical compounds. Retrieved from https://www.wipo.int
[3] USPTO. Patent application file history of US equivalents (if any).
