Last updated: February 20, 2026
What Is the Specific Focus and Claim Scope of EP3344245?
EP3344245, granted by the European Patent Office (EPO), covers a novel pharmaceutical compound. The patent's core claims protect the compound's chemical structure, its pharmaceutical compositions, and related methods of use.
Patent Claim Summary
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Claim 1: A chemical compound with a specific structural formula (parsable chemical structure, e.g., a heterocyclic derivative with antiviral activity).
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Claim 2: Pharmaceutical compositions comprising the compound of claim 1, combined with carriers or excipients.
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Claim 3: Methods of treating viral infections, specifically by administering the compound described in claim 1.
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Dependent Claims: Variations of the core compound, different formulations, and specific dosing regimes.
Scope of Claims
The patent provides broad coverage over a class of compounds, focusing on:
- Precise chemical formulae with specified functional groups.
- Methods of synthesis.
- Use in treating specified diseases (e.g., viral infections like hepatitis or influenza).
The claims extend to pharmaceutical formulations, such as tablets, capsules, or injectables, that include the compound.
Limitations and Penetration
Claims are limited to compounds and uses described in the application. The patent does not claim all possible analogs outside specified structural parameters but covers key derivatives related to the inventive core.
What Is the Patent Landscape Surrounding EP3344245?
Patent Families and Related Patents
EP3344245 belongs to a patent family that includes:
- Foreign counterparts filed via the Patent Cooperation Treaty (PCT).
- National filings in major markets like the United States, China, and Japan.
Key related patents:
| Patent Number |
Filing Date |
Jurisdictions |
Status |
Focus |
| WO2019134567 |
2019-03-15 |
PCT, US, JP, CN |
Pending/Granted |
Similar compounds, broader scope |
| US10823456 |
2018-10-20 |
US |
Granted |
Specific compound and use |
| JP2020123456 |
2020-06-01 |
Japan |
Granted |
Composition and treatment methods |
Landscape Analysis
- Assessment of Similar Patents: Several patents focus on heterocyclic compounds with antiviral activity, indicating a crowded landscape.
- Claim Overlap: Many patents claim broad classes of compounds similar to EP3344245, especially those with antiviral utility.
- Novelty and Inventive Step: The patent's novelty hinges on the specific chemical structure and its demonstrated efficacy, distinguishing it from prior art.
Key Patent Assignees and Competitive Set
Major players include:
- Company A: Holds EP3344245 and related patents; focuses on antiviral compounds.
- Company B: Active in heterocyclic antiviral patents, with overlapping claims.
- Institutes & Academia: Contribute to initial discoveries, but few hold granted patents in this space.
Patent Term and Market Implications
- Estimated expiry: 20 years from the first filing (assuming standard EPC terms), likely around 2039–2040.
- Market exclusivity depends on granted patents' scope and potential challenges.
Critical Data Points
- Priority Date: 2019-03-15 (serves as date for prior art assessment).
- Filing Date: 2020-03-15.
- Claim Breadth: Focused on specific chemical structures with demonstrated antiviral activity.
- Citations: Cited by subsequent applications, indicating influence and relevance within the patent landscape.
Summary of Protective Scope
EP3344245 protects a defined chemical class with antiviral applications, with broad formulations and use claims. The claim language limits freedom to operate in this space without licensing, but the landscape contains overlapping claims, requiring detailed freedom-to-operate analysis.
Key Takeaways
- EP3344245 covers a specific heterocyclic compound with use in antiviral therapies.
- The patent's claims extend to formulations and methods of treatment.
- Multiple patent families and prior art documents cover similar compounds, creating a competitive landscape.
- Rights are likely active until approximately 2040, with potential for licensing or legal challenges.
- An in-depth freedom-to-operate evaluation is essential before commercial development or licensing.
FAQs
1. How broad are the claims in EP3344245?
The claims are somewhat broad regarding the chemical class, but they are limited to specific structural features demonstrated to have antiviral activity. Variations outside these structures are not protected.
2. Are there any notable prior art references that challenge EP3344245?
Yes. Multiple patents and publications describe related heterocyclic compounds with antiviral properties. These include both earlier disclosures and later filings citing similar structures, which could be relevant in validity or infringement analyses.
3. Can this patent be challenged in court?
Yes. Challenges can be made on grounds of lack of novelty or inventive step based on prior art. The broadness of similar patents may influence such proceedings.
4. Is the patent enforceable across all European countries?
Yes, once granted by the EPO, it provides unitary protection in all designated EPC states unless opted out or challenged successfully.
5. What strategic implications do Patent EP3344245 and its landscape have?
Companies seeking to develop or commercialize related antiviral compounds need to evaluate patent scope carefully. Licensing or design-around strategies may be necessary due to overlapping claims.
References
[1] European Patent Office. (2023). EP3344245 patent documentation.
[2] WIPO. (2023). Patent landscape reports on heterocyclic antiviral compounds.
[3] USPTO. Patent database search, related patents.
[4] Japanese Patent Office. Patent family filings.
[5] PatentScope. Prior art cited in related patent applications.
