Patent No. EP3869199 (titled "A Method And Reagents For The Diagnosis Of Sars-Cov-2") was filed by Charit Universittsmedizin Berlin on Feb 20, 2020. The application was issued on Feb 9, 2022.

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 |
|---|---|---|
| SIMMONS & SIMMONS | Nov 9, 2022 | SIMMONS & SIMMONS MUNICH |
| DIASORIN ITALIA | Nov 9, 2022 | RIMINI |
| MIKROGEN | Oct 10, 2022 | KRAUS & LEDERER PARTGMBB |
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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