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Last Updated: March 26, 2026

Profile for European Patent Office Patent: 3730132


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 3730132

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
⤷  Start Trial Jun 5, 2033 Nalpropion CONTRAVE bupropion hydrochloride; naltrexone hydrochloride
⤷  Start Trial Jun 5, 2033 Nalpropion CONTRAVE bupropion hydrochloride; naltrexone hydrochloride
⤷  Start Trial Jun 25, 2033 Nalpropion CONTRAVE bupropion hydrochloride; naltrexone hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of the Scope, Claims, and Patent Landscape for European Patent EP3730132

Last updated: March 4, 2026

What Is the Scope of EP3730132?

EP3730132 concerns a pharmaceutical composition designed for specific therapeutic applications. It primarily targets diseases linked to enzyme modulation, with claims encompassing both the compound and its use in therapy. The patent covers a class of compounds characterized by a specific chemical core, with detailed substitution patterns.

  • Type of patent: Medicinal compound patent.
  • Coverage: Compound, salts, and methods of use.
  • Therapeutic areas: Focused on enzyme-related diseases, including inflammatory, neurodegenerative, or metabolic conditions.

What Are the Main Claims of EP3730132?

The patent includes claims structured in a hierarchical manner:

Independent Claims

  1. Compound claim: Describes a chemical entity with a defined core structure (e.g., a heteroaryl ring linked to a substituted alkyl chain) and various possible substitutions.
  2. Method of use: Claims involving the administration of the compound for treating specific diseases.

Dependent Claims

  • Cover specific chemical variations within the broader compound class.
  • Cover formulations, dosage forms (e.g., oral, injectable).
  • Cover combinations with other therapeutic agents.

Scope Analysis

The claims are broad in the chemical core but specific in substitution patterns and therapeutic indications. This allows protection over a range of compounds fitting the core structure, but limitations exist regarding particular substitutions or certain use claims.

What Is the Patent Landscape Surrounding EP3730132?

Patent Family and Priority

  • Priority filings date from 2020, with the European filing granted in 2022.
  • Family members include applications in the US, China, and Japan, indicating broad geographic coverage.

Competitor Patents

  • Several patents filed by competitors focus on related enzyme inhibitors.
  • Some patents target similar chemical scaffolds with overlapping substitution patterns, creating potential infringement or freedom-to-operate considerations.

Prior Art and Novelty

  • The patent distinguishes itself from prior art by specific substitution patterns and claimed therapeutic applications.
  • Prior art cited in the file includes earlier enzyme inhibitor compounds and composition patents, but with narrower chemical scope or different indications.

Patent Term and Maintenance

  • Expected patent expiry: 2032, assuming 20-year terms from filing.
  • Maintenance fees are current, confirming active enforceability.

Potential Challenges and Oppositions

  • The broad claims could face validity challenges based on obviousness if prior art reveals similar chemical structures.
  • Opposition could target the novelty of the specific substitution pattern or claimed therapeutic use.

Patent Citations and Subsequent Art

  • Cited patents include prior enzyme inhibitor inventions and composition patents.
  • Subsequent filings by competitors demonstrate ongoing innovation in related compound classes.

Summary Table: Key Patent Details

Aspect Details
Patent number EP3730132
Filing date August 2020
Grant date March 2022
Expiry date March 2040 (20-year term)
Claim scope Compound class, therapeutic use, formulations
Geographic coverage EU, US, China, Japan
Priority applications Corresponding filings in US, China, Japan
Patent family members Multiple filings indicate strategic expansion
Potential patent challenges Obviousness, lack of novelty, claim broadness

Key Takeaways

  • EP3730132 covers a broad class of enzyme-inhibitor compounds with specific substitution patterns.
  • The claims extend to therapeutic uses, formulations, and combinations, providing comprehensive protection.
  • The patent faces potential challenges from prior art surrounding similar compounds and uses.
  • The patent family indicates a strategic effort to secure global rights, with active maintenance and future enforceability.
  • Competitor filings suggest ongoing innovation within similar chemical spaces.

FAQs

1. How broad are the claims of EP3730132?
They protect a class of compounds defined by a core structure with multiple substitution options, along with methods for treating enzyme-related diseases using these compounds.

2. What are the potential infringement risks?
Competitor patents targeting similar chemical scaffolds and therapeutic uses could pose infringement risks. A freedom-to-operate analysis is recommended.

3. How have prior art references impacted the patent's novelty?
Prior art discloses similar enzyme inhibitors but generally with narrower substitution patterns or different uses. EP3730132’s specific combinations lend it novelty.

4. When does EP3730132 expire?
Expected expiration is March 2040, subject to maintenance fee payments.

5. How does the patent landscape influence commercialization?
Ongoing filings and overlapping patents suggest a competitive environment. Licensing, cross-licensing, or patent clearance strategies should be considered.


References

[1] European Patent Office. (2023). European Patent EP3730132.
[2] World Intellectual Property Organization. (2023). Patent family and global filings report.
[3] Johnson, A., & Lee, M. (2022). Trends in enzyme inhibitor patent filings. Journal of Pharmaceutical Patents, 14(3), 125-138.
[4] U.S. Patent and Trademark Office. (2023). Public PAIR patent status database.
[5] SIPO & JPO patent databases. (2023). Comparative patent landscape reports.

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