Patent No. EP3378810 (titled "Up-Stacker For Forming Stacks Of Sheets And Method Of Forming Stacks Of Sheets") was filed by Guangdong Fosber Intelligent Equipment on Mar 8, 2018. The application was issued on Oct 12, 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 |
|---|---|---|
| BHS CORRUGATED MASCHINEN UND ANLAGENBAU | Jul 12, 2023 | FDST PATENTANWALTE |
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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