Patent No. EP2922630 (titled "Oxidation Catalyst For Treating The Exhaust Gas Of A Compression Ignition Engine") was filed by Johnson Matthey Public on Nov 21, 2013. The application was issued on Feb 28, 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 |
|---|---|---|
| BASF | Mar 26, 2019 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB |
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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