Patent No. EP3253575 (titled "Machine Arrangement And Method For Sequential Processing Of Sheet-Type Substrates") was filed by Koenig & Bauer on Aug 10, 2016. The application was issued on Dec 1, 2021.

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 |
|---|---|---|
| MANROLAND SHEETFED | Feb 1, 2019 | - |
| HEIDELBERGER DRUCKMASCHINEN | Jan 17, 2019 | - |
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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