Patent No. EP3110961 (titled "Modulation Of Cell Growth And Glycosylation In Recombinant Glycoprotein Production") was filed by F Hoffmann LA Roche on Feb 24, 2015. The application was issued on Nov 27, 2019.

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 |
|---|---|---|
| ABG LAW | Aug 27, 2020 | ABG LAW |
| SCHULZ JUNGHANS PATENTANWALTE PARTGMBB | Aug 27, 2020 | SCHULZ JUNGHANS PATENTANWALTE 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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