Patent No. EP2343362 (titled "Improved Process For The Culturing Of Cells") was filed by DPX on Jul 4, 2007. The application was issued on Apr 3, 2024.

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 |
|---|---|---|
| REPLIGEN | Dec 30, 2016 | FISH & RICHARDSON PC |
| BOEHRINGER INGELHEIM | Dec 27, 2016 | HOFER |
| BAXALTA | Dec 23, 2016 | HOFFMANN EITLE |
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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