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Patent No. EP3329965 (titled "Dosing Regimen Of Anti-Alpha4Beta7-Antibodies") was filed by Millennium Pharmaceuticals on May 2, 2012. The application was issued on Mar 19, 2025.

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 |
|---|---|---|
| GRAF VON STOSCH PATENTANWALTSGESELLSCHAFT | Dec 19, 2025 | LEPTHIEN |
| STORZ | Dec 19, 2025 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB |
| ABEL & IMRAY | Dec 18, 2025 | ABEL & IMRAY |
| ADVANZ PHARMA SERVICES UK | Dec 18, 2025 | ELKINGTON AND FIFE |
| FRESENIUS KABI SWISSBIOSIM | Dec 18, 2025 | D YOUNG |
| BRAND MURRAY FULLER | Dec 17, 2025 | BRAND MURRAY FULLER |
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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