Patent No. EP2451637 (titled "Robust Packaging Laminate, Method For Manufacturing Of The Packaging Laminate And Packaging Container Produced Therefrom") was filed by Tetra Laval & Finance on Jul 6, 2010. The application was issued on Oct 19, 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 |
|---|---|---|
| SIG TECHNOLOGY | May 19, 2020 | HERZOG PATENTANWALTS |
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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