Patent No. EP2632689 (titled "Process For Producing Injection Stretch Blow Molded Polyolefin Containers") was filed by Basell Poliolefine Italia on Oct 20, 2011. The application was issued on Mar 23, 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 |
|---|---|---|
| CHEMISCHE FABRIK BUDENHEIM | Oct 14, 2015 | WSL |
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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