Patent No. EP3191120 (titled "Use Of Il-17 Antagonists To Inhibit The Progression Of Structural Damage In Psoriatic Arthritis Patients") was filed by Novartis on Sep 8, 2015. The application was issued on Apr 10, 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 |
|---|---|---|
| GRAF VON STOSCH PATENTANWALTSGESELLSCHAFT | Jan 10, 2025 | LEPTHIEN |
| HAMPTON KNOWLES | Jan 10, 2025 | D YOUNG |
| MAIWALD | Jan 10, 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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