Patent No. EP2908944 (titled "8-Ring Small Pore Molecular Sieve With Promoter To Improve Low Temperature Performance") was filed by Basf on Oct 17, 2013. The application was issued on Mar 19, 2025.

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 |
|---|---|---|
| JOHNSON MATTHEY PUBLIC | Dec 19, 2025 | JOHNSON MATTHEY PUBLIC |
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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