Patent No. EP3280416 (titled "Dosing Regimen For Missed Doses For Long-Acting Injectable Paliperidone Esters") was filed by Janssen Pharmaceutica on Mar 30, 2016. The application was issued on Apr 22, 2020.

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 |
|---|---|---|
| DF MP DORRIES FRANK MOLNIA & POHLMAN PATENTANWALTE RECHTSANWALTE PARG MBB | Jan 22, 2021 | ELKINGTON AND FIFE |
| HOFFMANN EITLE | Jan 22, 2021 | - |
| STADA ARZNEIMITTEL | Jan 22, 2021 | HAMM & WITTKOPP |
| ACCORD HEALTHCARE | Jan 21, 2021 | BRAND MURRAY FULLER |
| HEXAL | Jan 21, 2021 | MAIWALD |
| TEVA PHARMACEUTICALS | Jan 21, 2021 | D YOUNG |
| HAMM & WITTKOPP | Jan 19, 2021 | GILL JENNINGS & EVERY |
| INSTONE | Dec 1, 2020 | APPLEYARD LEES |
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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