Patent No. EP2874530 (titled "Warewasher And Method For Operating A Warewasher") was filed by Premark FEG on Jul 16, 2013. The application was issued on Mar 1, 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 |
|---|---|---|
| SANHUA AWECO APPLIANCE SYSTEMS | Dec 1, 2017 | OTTEN |
| SANHUA AWECO APPLIANCE SYSTEMS | Dec 1, 2017 | RAVENSPAT |
| ECOLAB USA | Nov 30, 2017 | GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENT |
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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