Patent No. EP2601050 (titled "Container Formed From A Roll And Having Improved Opening Properties As A Result Of Stretching Heat Treatment Of Polymer Layers") was filed by SIG Combibloc Services on Aug 4, 2011. The application was issued on Mar 8, 2017.

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 |
|---|---|---|
| TETRA LAVAL & FINANCE | Dec 8, 2017 | BECK GREENER |
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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