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Patent No. EP2995367 (titled "Small Pore Molecular Sieve Supported Copper Catalysts Durable Against Lean/Rich Aging For The Reduction Of Nitrogen Oxides") was filed by Johnson Matthey Public on Apr 19, 2010. The application was issued on Dec 20, 2017.

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 | Sep 20, 2018 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB |
| UMICORE | Sep 19, 2018 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE 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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