Patent No. EP2881028 (titled "Improved Multistage Rinsing Module For Tunnel Dishwashers, And A Tunnel Dishwasher Provided With Such A Module") was filed by Ali Group S.r.l. on Jul 13, 2012. The application was issued on Jun 29, 2016.

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 |
|---|---|---|
| WINTERHALTER GASTRONOM GMBH | Mar 28, 2017 | APPELT |
| HOBART | Mar 27, 2017 | TRINKS |
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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