Patent No. EP3294476 (titled "Casting Process And Sand Mould Provided With An Inlet System For Producing At Least Partly Thin Walled Aluminium Casts With Sand Moulding Technology By Means Of Gravity Casting") was filed by ALU NT KFT on May 12, 2016. The application was issued on Jul 20, 2022.

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 |
|---|---|---|
| NEMAK EUROPE | Apr 3, 2020 | COHAUSZ & FLORACK |
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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