Patent No. EP2851417 (titled "Toilet Solid Block") was filed by Bolton Manitoba on Sep 17, 2014. The application was issued on Jan 10, 2018.

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 |
|---|---|---|
| BUCK CHEMIE | Sep 27, 2018 | MAMMEL UND MASER PATENTANWALTE PARTG MBB |
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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