Patent No. EP3103443 (titled "Method For Treating Primary Insomnia") was filed by Neurim Pharmaceuticals on Aug 12, 2002. The application was issued on Jun 30, 2021.

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 |
|---|---|---|
| MAIWALD | Mar 29, 2022 | MAIWALD |
| NEURAXPHARM ARZNEIMITTEL | Mar 29, 2022 | TER MEER STEINMEISTER & PARTNER |
| TEVA PHARMACEUTICALS | Mar 29, 2022 | ELKINGTON AND FIFE |
| HAMM & WITTKOPP | Feb 9, 2022 | HAMM & WITTKOPP |
| ORIFARM GENERICS | Sep 30, 2021 | ZBM PATENTS APS |
| GENERICS UK | Jun 30, 2021 | ELKINGTON AND FIFE |
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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