Patent No. EP3487881 (titled "Methods Of Treating New-Onset Plaque Type Psoriasis Using Il-17 Antagonists") was filed by Novartis on Jul 18, 2017. The application was issued on Aug 21, 2024.

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 |
|---|---|---|
| BRAND MURRAY FULLER | May 21, 2025 | BRAND MURRAY FULLER |
| DEHMEL & BETTENHAUSEN PATENTANWALTE PARTMBB | May 21, 2025 | RUCKERL |
| GRAF VON STOSCH PATENTANWALTSGESELLSCHAFT | May 21, 2025 | LEPTHIEN |
| HAMPTON KNOWLES | May 21, 2025 | D YOUNG |
| J A KEMP | May 21, 2025 | J A KEMP |
| MAIWALD | May 21, 2025 | MAIWALD |
| NEUEFEIND | May 20, 2025 | MAIWALD |
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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