Patent No. EP4223296 (titled "Nalmefene For Reduction Of Alcohol Consumption In Specific Target Populations") was filed by H Lundbeck on Jun 27, 2013. The application was issued on Jan 29, 2025.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_0001587/2025 | Nov 14, 2025 | Biogaran | Revocation |

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative |
|---|---|---|
| BIOGARAN | Oct 29, 2025 | CASALONGA |
| ALFRED E TIEFENBACHER | Oct 27, 2025 | HAMM & WITTKOPP |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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