Patent No. EP2970980 (titled "Manufacturing Methods To Control C-Terminal Lysine, Galactose And Sialic Acid Content In Recombinant Proteins") was filed by Janssen Biologics on Mar 7, 2014. The application was issued on Jul 27, 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 |
|---|---|---|
| CABINET LAVOIX | May 15, 2019 | LAVOIX |
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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