Patent No. EP2324411 (titled "An Extracorporeal Blood Treatment Apparatus") was filed by Gambro Lundia on Jul 15, 2009. The application was issued on Aug 11, 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 |
|---|---|---|
| FRESENIUS MEDICAL CARE | Dec 14, 2018 | BOBBERT & PARTNER PATENTANWALTE PARTMBB |
| B BRAUN AVITUM | Dec 4, 2018 | WINTER |
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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