Patent No. EP2770071 (titled "Aluminium Alloy For The Production Of Semi-Finished Products Or Components For Motor Vehicles, Method For Producing An Aluminium Alloy Strip From This Aluminium Alloy And Aluminium Alloy Strip And Uses Thereof") was filed by Hydro Aluminium Rolled Products on Feb 21, 2013. The application was issued on Aug 12, 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 |
|---|---|---|
| C TEC CONSTELLIUM TECHNOLOGY CENTER CONSTELLIUM NEUF BRISACH | Oct 27, 2017 | CONSTELLIUM PROPRIETE INDUSTRIELLE |
| ALERIS ALUMINUM DUFFEL BVBA | Oct 25, 2017 | SCHINKEL |
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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