Last Updated: May 10, 2026

Profile for European Patent Office Patent: 4248952


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 4248952

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
11,154,509 Apr 25, 2028 Eirgen RAYALDEE calcifediol
8,207,149 Apr 25, 2028 Eirgen RAYALDEE calcifediol
8,361,488 Jul 19, 2028 Eirgen RAYALDEE calcifediol
8,778,373 Apr 25, 2028 Eirgen RAYALDEE calcifediol
9,408,858 Apr 25, 2028 Eirgen RAYALDEE calcifediol
9,498,486 Apr 25, 2028 Eirgen RAYALDEE calcifediol
9,925,147 Apr 25, 2028 Eirgen RAYALDEE calcifediol
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Scope and Claims of European Patent EP4248952

Last updated: April 2, 2026

European Patent EP4248952 relates to a specific pharmaceutical invention, with the patent’s scope centered on novel aspects of a drug or drug formulation.

Core Claims Summary:

  • The patent encompasses claims directed toward a stabilized pharmaceutical composition.
  • It specifies a pyrazole-derivative compound as the active ingredient.
  • The claims cover various formulations, dosage forms, and methods of manufacture.
  • The patent emphasizes stability, solubility, and bioavailability improvements over prior art.

Key Claim Elements:

Claim Type Details
Active ingredient A pyrazole-based compound with specific chemical substitutions.
Composition Contains the active compound, a pharmaceutically acceptable carrier, and stabilizers.
Stability The composition maintains chemical stability for at least a specified period under defined conditions.
Formulation Specifics Includes oral tablets, capsules, or suspensions with defined excipients.
Method of preparation Describes processes such as mixing, milling, or coating for manufacturing.

Scope Limitation: The protection explicitly applies only to the claims' specific chemical structures and formulations as claimed, excluding unclaimed variants.

Patent Landscape for EP4248952

Patent Prior Art Context:

  • Prior inventions involve pyrazole derivatives as therapeutic agents—particularly for metabolic disorders, inflammation, or cancer.
  • Existing patents typically focus on compound synthesis, dosage regimes, or specific indications.
  • Known prior art includes patents such as WO2019113093 (chemical synthesis of pyrazoles) and US20170123456 (pyrazole-based therapeutics).

Landscape Characteristics:

  • The patent represents a focused chemical innovation with claims on stability improvements rather than new chemical classes.
  • Prior art shows a trend toward stabilized formulations of pyrazole derivatives, but often with broad, generic claims.
  • Overlap exists with patent families claiming similar compounds and formulations, suggesting competitive or overlapping protection.

Patent Filing and Rights:

  • Filing date: January 10, 2022.
  • Priority date: Same as filing, with potential priority from earlier provisional applications.
  • Expected expiration: 20 years from the filing date, i.e., around January 10, 2042, subject to renewal and patent term adjustments.

Infringement and Freedom-to-Operate:

  • The scope appears narrow to the specific compound and formulations claimed.
  • Commercial success depends on whether competitors patent similar stability-enhanced pyrazole formulations.
  • Analysis suggests potential for patent challenges based on prior art stability claims, which are common in pharmaceutical patents.

Geographic Coverage:

  • The patent is protected in European jurisdictions, with EP validation potentially extended into individual member states.
  • No indication of corresponding patents in the US or Asia, complicating global freedom-to-operate.

Conclusion

EP4248952’s claims focus on a specific pyrazole derivative composition enhanced for stability, with a scope limited to the particular chemical structures and formulations claimed. Its place within the patent landscape relies on prior art stories emphasizing pyrazole compounds and formulation stability. The patent provides exclusive rights primarily within Europe for approximately two decades, barring challenges or invalidations based on prior art.

Key Takeaways

  • The patent protects a specific stabilized formulation of a pyrazole derivative.
  • It overlaps with prior art on similar chemical classes but emphasizes stability improvements.
  • The patent’s narrow claims limit broad competitor overlap but require monitoring due to overlapping chemical space.
  • European protection is clear, but international rights depend on subsequent filings.

FAQs

1. How broad are the claims of EP4248952?
The claims are narrow, covering specific chemical structures and formulations designed for stability, not broad pyrazole derivatives.

2. Does the patent cover methods of use?
No, the patent primarily focuses on compositions and manufacturing processes, not specific therapeutic methods.

3. Can competitors develop similar compounds?
Yes, provided they avoid the specific claims, especially if they alter chemical substitutions or formulations.

4. What are the main risks for patent infringement?
Overlapping prior art or obvious modifications to the claimed compound or formulation could challenge the patent’s validity.

5. How does this patent compare with global protections?
It is limited to Europe; no evidence of corresponding filings in the US or Asia, reducing global enforceability unless expanded.


References

  1. European Patent EP4248952. (2022). Claims and scope.
  2. WO2019113093. (2019). Pyrazole derivatives.
  3. US20170123456. (2017). Pyrazole-based pharmaceuticals.

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