Patent No. EP2340103 (titled "Transition Metal-Containing Aluminosilicate Zeolite") was filed by Johnson Matthey Public on Oct 13, 2009. The application was issued on Jul 22, 2020.

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 3, 2015 | ALTMANN STOSSEL DICK |
| MAIWALD PATENTANWALTS | Sep 3, 2015 | - |
| PQ | Sep 3, 2015 | FINNEGAN EUROPE |
| UMICORE | Sep 2, 2015 | - |
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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