Patent No. EP3359327 (titled "Aluminum Composite Material For Use In Thermal Flux-Free Joining Methods And Method For Producing Same") was filed by Hydro Aluminium Rolled Products on Oct 4, 2016. The application was issued on Feb 20, 2019.

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 |
|---|---|---|
| MAHLE | Nov 18, 2019 | EINSIEDLER |
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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